{"title":"Studio Essentials \/ Tubes","description":"","products":[{"product_id":"telefunken-valve-kt88-tk-vacuum-tube-matched-quad","title":"Telefunken Valve KT88-TK Vacuum Tube (Matched Quad)","description":"\u003cp\u003eThe TELEFUNKEN Elektroakustik KT88-TK is a newly manufactured and cryogenically treated version of the legendary KT88. The KT88-TK is a beam-power tetrode that shares similar applications as the 6L6 and EL34, and is one of the largest tubes in its class. Originally introduced by GEC in 1956, it became competition for the American-made 6550, but with the ability to handle a much higher plate voltage of up to 800 V, the KT88 became a common choice for power amplification design.\u003c\/p\u003e\n\n\u003cp\u003eIts characteristics of high power and low distortion make it ideal for guitar amplifier applications where the user is seeking a higher gain tone with less distortion than a 6550 will provide. Tonally, the Black Diamond Series KT88-TK has the same characteristic mid-range of the original KT88 manufactured by MOV (Marconi-Osram Valve), with an expanded low end and very high end. The rigorous quality control and durable construction yields a dependable tube ready for the most demanding applications.\u003c\/p\u003e\n\n\u003cp\u003eClick here for the KT88-TK Data sheet.\u003c\/p\u003e\n\n\u003cp\u003eAbout Telefunken Black Diamond Series Vacuum Tubes\u003c\/p\u003e\n\n\u003cp\u003eTelefunken vacuum tubes have been the benchmark of excellence in all audio applications, both productions and reproduction, for many decades. Today, this rich history continues with the introduction of new production tubes from Telefunken Elektroakustik, in partnership with JJ tubes from the Carpathian mountains of Cadca in Slovakia.\u003c\/p\u003e\n\n\u003cp\u003eEach tube is meticulously measured for all critical parameters of performance including transconductance, gain, noise, and microphonics. All Telefunken branded tubes are hand picked to be the best examples of Eastern European construction in the proud tradition with which the name Telefunken Elektroakustik has become synonymous.\u003c\/p\u003e\n\n\u003cp\u003eIn addition to the rigorous testing procedure, all new production Telefunken tubes are cryogenically treated to ensure durability, and subjected to an extended burn-in period to ensure superior stability. The tubes are re-measured subsequent to burn-in, and again before final packaging, in order to guarantee that only the best, lowest noise tubes are offered.\u003c\/p\u003e\n\n\u003cp\u003eDisclaimer\u003c\/p\u003e\n\n\u003cp\u003eNeither SX Pro or TELEFUNKEN Elektroakustik will be held responsible (financially or otherwise) for equipment that is damaged from the use of tubes purchased from us. Each tube has been fully tested to ensure reliability and is guaranteed to perform as described. It is the responsibility of the customer to consult with the equipment manufacturer (or qualified technician) for the selection of proper tubes and proper installation and biasing procedures.\u003c\/p\u003e","brand":"Telefunken Elektroakustik","offers":[{"title":"Default Title","offer_id":57959720812927,"sku":"9804","price":450.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1008\/1216\/1407\/files\/9804-1.jpg?v=1783943306"},{"product_id":"telefunken-valve-kt88-tk-vacuum-tube-matched-pair","title":"Telefunken Valve KT88-TK Vacuum Tube (Matched Pair)","description":"\u003cp\u003eThe TELEFUNKEN Elektroakustik KT88-TK is a newly manufactured and cryogenically treated version of the legendary KT88. The KT88-TK is a beam-power tetrode that shares similar applications as the 6L6 and EL34, and is one of the largest tubes in its class. Originally introduced by GEC in 1956, it became competition for the American-made 6550, but with the ability to handle a much higher plate voltage of up to 800 V, the KT88 became a common choice for power amplification design.\u003c\/p\u003e\n\n\u003cp\u003eIts characteristics of high power and low distortion make it ideal for guitar amplifier applications where the user is seeking a higher gain tone with less distortion than a 6550 will provide. Tonally, the Black Diamond Series KT88-TK has the same characteristic mid-range of the original KT88 manufactured by MOV (Marconi-Osram Valve), with an expanded low end and very high end. The rigorous quality control and durable construction yields a dependable tube ready for the most demanding applications.\u003c\/p\u003e\n\n\u003cp\u003eClick here for the KT88-TK Data sheet.\u003c\/p\u003e\n\n\u003cp\u003eAbout Telefunken Black Diamond Series Vacuum Tubes\u003c\/p\u003e\n\n\u003cp\u003eTelefunken vacuum tubes have been the benchmark of excellence in all audio applications, both productions and reproduction, for many decades. Today, this rich history continues with the introduction of new production tubes from Telefunken Elektroakustik, in partnership with JJ tubes from the Carpathian mountains of Cadca in Slovakia.\u003c\/p\u003e\n\n\u003cp\u003eEach tube is meticulously measured for all critical parameters of performance including transconductance, gain, noise, and microphonics. All Telefunken branded tubes are hand picked to be the best examples of Eastern European construction in the proud tradition with which the name Telefunken Elektroakustik has become synonymous.\u003c\/p\u003e\n\n\u003cp\u003eIn addition to the rigorous testing procedure, all new production Telefunken tubes are cryogenically treated to ensure durability, and subjected to an extended burn-in period to ensure superior stability. The tubes are re-measured subsequent to burn-in, and again before final packaging, in order to guarantee that only the best, lowest noise tubes are offered.\u003c\/p\u003e\n\n\u003cp\u003eDisclaimer\u003c\/p\u003e\n\n\u003cp\u003eNeither SX Pro or TELEFUNKEN Elektroakustik will be held responsible (financially or otherwise) for equipment that is damaged from the use of tubes purchased from us. Each tube has been fully tested to ensure reliability and is guaranteed to perform as described. It is the responsibility of the customer to consult with the equipment manufacturer (or qualified technician) for the selection of proper tubes and proper installation and biasing procedures.\u003c\/p\u003e","brand":"Telefunken Elektroakustik","offers":[{"title":"Default Title","offer_id":57959720911231,"sku":"9803","price":225.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1008\/1216\/1407\/files\/9803-1.jpg?v=1783943301"},{"product_id":"telefunken-valve-6550-tk-vacuum-tube-matched-quad","title":"Telefunken Valve 6550-TK Vacuum Tube (Matched Quad)","description":"\u003cp\u003eThe TELEFUNKEN 6550-TK is a high output power tube suitable for use in guitar amplifiers and Leslie speaker systems. Ideal for use in classic Marshall, Fender and Ampeg tube circuits, the 6550-TK offers outstanding performance and stability.\u003c\/p\u003e\n\n\u003cp\u003eTung-Sol developed the 6550 in 1955 for use as a servo amplifier and in industrial applications. The design is based on the 6L6, but with more gain and better stability.\u003c\/p\u003e\n\n\u003cp\u003eLike the 6L6, the 6550 is a beam power tube design (or power tetrode) that can painlessly deliver 35 watts at its output.\u003c\/p\u003e\n\n\u003cp\u003eAny bass player with an Ampeg SVT knows the beauty of the 6550 sound, as well as the raw power they can deliver. One of the best features of the 6550 is the tube’s long life characteristic, which will grant the user fewer tube changes over the years.\u003c\/p\u003e\n\n\u003cp\u003eClick here for the 6550-TK Data sheet.\u003c\/p\u003e\n\n\u003cp\u003eAbout Telefunken Black Diamond Series Vacuum Tubes\u003c\/p\u003e\n\n\u003cp\u003eTelefunken vacuum tubes have been the benchmark of excellence in all audio applications, both productions and reproduction, for many decades. Today, this rich history continues with the introduction of new production tubes from Telefunken Elektroakustik, in partnership with JJ tubes from the Carpathian mountains of Cadca in Slovakia.\u003c\/p\u003e\n\n\u003cp\u003eEach tube is meticulously measured for all critical parameters of performance including transconductance, gain, noise, and microphonics. All Telefunken branded tubes are hand picked to be the best examples of Eastern European construction in the proud tradition with which the name Telefunken Elektroakustik has become synonymous.\u003c\/p\u003e\n\n\u003cp\u003eIn addition to the rigorous testing procedure, all new production Telefunken tubes are cryogenically treated to ensure durability, and subjected to an extended burn-in period to ensure superior stability. The tubes are re-measured subsequent to burn-in, and again before final packaging, in order to guarantee that only the best, lowest noise tubes are offered.\u003c\/p\u003e\n\n\u003cp\u003eDisclaimer\u003c\/p\u003e\n\n\u003cp\u003eNeither SX Pro or TELEFUNKEN Elektroakustik will be held responsible (financially or otherwise) for equipment that is damaged from the use of tubes purchased from us. Each tube has been fully tested to ensure reliability and is guaranteed to perform as described. It is the responsibility of the customer to consult with the equipment manufacturer (or qualified technician) for the selection of proper tubes and proper installation and biasing procedures.\u003c\/p\u003e","brand":"Telefunken Elektroakustik","offers":[{"title":"Default Title","offer_id":57959721009535,"sku":"9802","price":410.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1008\/1216\/1407\/files\/9802-1.jpg?v=1783943307"},{"product_id":"telefunken-valve-6550-tk-vacuum-tube-matched-pair","title":"Telefunken Valve 6550-TK Vacuum Tube (Matched Pair)","description":"\u003cp\u003eThe TELEFUNKEN 6550-TK is a high output power tube suitable for use in guitar amplifiers and Leslie speaker systems. Ideal for use in classic Marshall, Fender and Ampeg tube circuits, the 6550-TK offers outstanding performance and stability.\u003c\/p\u003e\n\n\u003cp\u003eTung-Sol developed the 6550 in 1955 for use as a servo amplifier and in industrial applications. The design is based on the 6L6, but with more gain and better stability.\u003c\/p\u003e\n\n\u003cp\u003eLike the 6L6, the 6550 is a beam power tube design (or power tetrode) that can painlessly deliver 35 watts at its output.\u003c\/p\u003e\n\n\u003cp\u003eAny bass player with an Ampeg SVT knows the beauty of the 6550 sound, as well as the raw power they can deliver. One of the best features of the 6550 is the tube’s long life characteristic, which will grant the user fewer tube changes over the years.\u003c\/p\u003e\n\n\u003cp\u003eClick here for the 6550-TK Data sheet.\u003c\/p\u003e\n\n\u003cp\u003eAbout Telefunken Black Diamond Series Vacuum Tubes\u003c\/p\u003e\n\n\u003cp\u003eTelefunken vacuum tubes have been the benchmark of excellence in all audio applications, both productions and reproduction, for many decades. Today, this rich history continues with the introduction of new production tubes from Telefunken Elektroakustik, in partnership with JJ tubes from the Carpathian mountains of Cadca in Slovakia.\u003c\/p\u003e\n\n\u003cp\u003eEach tube is meticulously measured for all critical parameters of performance including transconductance, gain, noise, and microphonics. All Telefunken branded tubes are hand picked to be the best examples of Eastern European construction in the proud tradition with which the name Telefunken Elektroakustik has become synonymous.\u003c\/p\u003e\n\n\u003cp\u003eIn addition to the rigorous testing procedure, all new production Telefunken tubes are cryogenically treated to ensure durability, and subjected to an extended burn-in period to ensure superior stability. The tubes are re-measured subsequent to burn-in, and again before final packaging, in order to guarantee that only the best, lowest noise tubes are offered.\u003c\/p\u003e\n\n\u003cp\u003eDisclaimer\u003c\/p\u003e\n\n\u003cp\u003eNeither SX Pro or TELEFUNKEN Elektroakustik will be held responsible (financially or otherwise) for equipment that is damaged from the use of tubes purchased from us. Each tube has been fully tested to ensure reliability and is guaranteed to perform as described. It is the responsibility of the customer to consult with the equipment manufacturer (or qualified technician) for the selection of proper tubes and proper installation and biasing procedures.\u003c\/p\u003e","brand":"Telefunken Elektroakustik","offers":[{"title":"Default Title","offer_id":57959721075071,"sku":"9801","price":205.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1008\/1216\/1407\/files\/9801-1.jpg?v=1783943301"},{"product_id":"telefunken-valve-6l6gc-tk-vacuum-tube-matched-quad","title":"Telefunken Valve 6L6GC-TK Vacuum Tube (Matched Quad)","description":"\u003cp\u003eThe TELEFUNKEN 6L6GC-TK has tight and defined lows, transparent mids and a shimmering high end. When installed into your amplifier, these octal power tubes offer a focused bite with well-defined articulation.\u003c\/p\u003e\n\n\u003cp\u003eThe 6L6 was developed by RCA in 1936 as the first power tetrode, an alternative to the high output pentode designs already under patent by Philips. The modern version, the 6L6GC, dominates the guitar amplifier market no different than the earlier versions that have been found in Fender amplifiers since the 1940’s.\u003c\/p\u003e\n\n\u003cp\u003eThe 6L6 is most associated with American sounding amplifiers. In comparison to the EL34 and EL84, the 6L6 tends to not break up as quickly. With it’s top-end sparkle and clean headroom, their is a reason the 6L6 has had one of the longest active lifetimes of any electronic component.\u003c\/p\u003e\n\n\u003cp\u003eClick here for the 6L6GC-TK Data sheet.\u003c\/p\u003e\n\n\u003cp\u003eAbout Telefunken Black Diamond Series Vacuum Tubes\u003c\/p\u003e\n\n\u003cp\u003eTelefunken vacuum tubes have been the benchmark of excellence in all audio applications, both productions and reproduction, for many decades. Today, this rich history continues with the introduction of new production tubes from Telefunken Elektroakustik, in partnership with JJ tubes from the Carpathian mountains of Cadca in Slovakia.\u003c\/p\u003e\n\n\u003cp\u003eEach tube is meticulously measured for all critical parameters of performance including transconductance, gain, noise, and microphonics. All Telefunken branded tubes are hand picked to be the best examples of Eastern European construction in the proud tradition with which the name Telefunken Elektroakustik has become synonymous.\u003c\/p\u003e\n\n\u003cp\u003eIn addition to the rigorous testing procedure, all new production Telefunken tubes are cryogenically treated to ensure durability, and subjected to an extended burn-in period to ensure superior stability. The tubes are re-measured subsequent to burn-in, and again before final packaging, in order to guarantee that only the best, lowest noise tubes are offered.\u003c\/p\u003e\n\n\u003cp\u003eDisclaimer\u003c\/p\u003e\n\n\u003cp\u003eNeither SX Pro or TELEFUNKEN Elektroakustik will be held responsible (financially or otherwise) for equipment that is damaged from the use of tubes purchased from us. Each tube has been fully tested to ensure reliability and is guaranteed to perform as described. It is the responsibility of the customer to consult with the equipment manufacturer (or qualified technician) for the selection of proper tubes and proper installation and biasing procedures.\u003c\/p\u003e","brand":"Telefunken Elektroakustik","offers":[{"title":"Default Title","offer_id":57959721173375,"sku":"9800","price":298.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1008\/1216\/1407\/files\/9800-1.jpg?v=1783943305"},{"product_id":"telefunken-valve-6l6gc-tk-vacuum-tube-matched-pair","title":"Telefunken Valve 6L6GC-TK Vacuum Tube (Matched Pair)","description":"\u003cp\u003eThe TELEFUNKEN 6L6GC-TK has tight and defined lows, transparent mids and a shimmering high end. When installed into your amplifier, these octal power tubes offer a focused bite with well-defined articulation.\u003c\/p\u003e\n\n\u003cp\u003eThe 6L6 was developed by RCA in 1936 as the first power tetrode, an alternative to the high output pentode designs already under patent by Philips. The modern version, the 6L6GC, dominates the guitar amplifier market no different than the earlier versions that have been found in Fender amplifiers since the 1940’s.\u003c\/p\u003e\n\n\u003cp\u003eThe 6L6 is most associated with American sounding amplifiers. In comparison to the EL34 and EL84, the 6L6 tends to not break up as quickly. With it’s top-end sparkle and clean headroom, their is a reason the 6L6 has had one of the longest active lifetimes of any electronic component.\u003c\/p\u003e\n\n\u003cp\u003eClick here for the 6L6GC-TK Data sheet.\u003c\/p\u003e\n\n\u003cp\u003eAbout Telefunken Black Diamond Series Vacuum Tubes\u003c\/p\u003e\n\n\u003cp\u003eTelefunken vacuum tubes have been the benchmark of excellence in all audio applications, both productions and reproduction, for many decades. Today, this rich history continues with the introduction of new production tubes from Telefunken Elektroakustik, in partnership with JJ tubes from the Carpathian mountains of Cadca in Slovakia.\u003c\/p\u003e\n\n\u003cp\u003eEach tube is meticulously measured for all critical parameters of performance including transconductance, gain, noise, and microphonics. All Telefunken branded tubes are hand picked to be the best examples of Eastern European construction in the proud tradition with which the name Telefunken Elektroakustik has become synonymous.\u003c\/p\u003e\n\n\u003cp\u003eIn addition to the rigorous testing procedure, all new production Telefunken tubes are cryogenically treated to ensure durability, and subjected to an extended burn-in period to ensure superior stability. The tubes are re-measured subsequent to burn-in, and again before final packaging, in order to guarantee that only the best, lowest noise tubes are offered.\u003c\/p\u003e\n\n\u003cp\u003eDisclaimer\u003c\/p\u003e\n\n\u003cp\u003eNeither SX Pro or TELEFUNKEN Elektroakustik will be held responsible (financially or otherwise) for equipment that is damaged from the use of tubes purchased from us. Each tube has been fully tested to ensure reliability and is guaranteed to perform as described. It is the responsibility of the customer to consult with the equipment manufacturer (or qualified technician) for the selection of proper tubes and proper installation and biasing procedures.\u003c\/p\u003e","brand":"Telefunken Elektroakustik","offers":[{"title":"Default Title","offer_id":57959721238911,"sku":"9799","price":149.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1008\/1216\/1407\/files\/9799-1.jpg?v=1783943300"},{"product_id":"telefunken-valve-6v6-tk-vacuum-tube-matched-quad","title":"Telefunken Valve 6V6-TK Vacuum Tube (Matched Quad)","description":"\u003cp\u003eThe TELEFUNKEN Elektroakustik 6V6-TK is newly manufactured and cryogenically treated rendition of the legendary 6V6. Originally released in 1937 by RCA, the 6V6 is a beam-power tetrode vacuum tube ideal for use in hi-fi audio equipment and music instrument amplifiers. The 6V6 has been used in popular guitar amplifiers such as the Fender Champ, Princeton Reverb, and Deluxe Reverb for decades, and the Black Diamond Series 6V6-TK is a perfect replacement for keeping the same performance and tone as the originals.\u003c\/p\u003e\n\n\u003cp\u003eClick here for the 6V6-TK Data sheet.\u003c\/p\u003e\n\n\u003cp\u003eAbout Telefunken Black Diamond Series Vacuum Tubes\u003c\/p\u003e\n\n\u003cp\u003eTelefunken vacuum tubes have been the benchmark of excellence in all audio applications, both productions and reproduction, for many decades. Today, this rich history continues with the introduction of new production tubes from Telefunken Elektroakustik, in partnership with JJ tubes from the Carpathian mountains of Cadca in Slovakia.\u003c\/p\u003e\n\n\u003cp\u003eEach tube is meticulously measured for all critical parameters of performance including transconductance, gain, noise, and microphonics. All Telefunken branded tubes are hand picked to be the best examples of Eastern European construction in the proud tradition with which the name Telefunken Elektroakustik has become synonymous.\u003c\/p\u003e\n\n\u003cp\u003eIn addition to the rigorous testing procedure, all new production Telefunken tubes are cryogenically treated to ensure durability, and subjected to an extended burn-in period to ensure superior stability. The tubes are re-measured subsequent to burn-in, and again before final packaging, in order to guarantee that only the best, lowest noise tubes are offered.\u003c\/p\u003e\n\n\u003cp\u003eDisclaimer\u003c\/p\u003e\n\n\u003cp\u003eNeither SX Pro or TELEFUNKEN Elektroakustik will be held responsible (financially or otherwise) for equipment that is damaged from the use of tubes purchased from us. Each tube has been fully tested to ensure reliability and is guaranteed to perform as described. It is the responsibility of the customer to consult with the equipment manufacturer (or qualified technician) for the selection of proper tubes and proper installation and biasing procedures.\u003c\/p\u003e","brand":"Telefunken Elektroakustik","offers":[{"title":"Default Title","offer_id":57959721304447,"sku":"9798","price":230.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1008\/1216\/1407\/files\/9798-1.jpg?v=1783943307"},{"product_id":"telefunken-valve-6v6-tk-vacuum-tube-matched-pair","title":"Telefunken Valve 6V6-TK Vacuum Tube (Matched Pair)","description":"\u003cp\u003eThe TELEFUNKEN Elektroakustik 6V6-TK is newly manufactured and cryogenically treated rendition of the legendary 6V6. Originally released in 1937 by RCA, the 6V6 is a beam-power tetrode vacuum tube ideal for use in hi-fi audio equipment and music instrument amplifiers. The 6V6 has been used in popular guitar amplifiers such as the Fender Champ, Princeton Reverb, and Deluxe Reverb for decades, and the Black Diamond Series 6V6-TK is a perfect replacement for keeping the same performance and tone as the originals.\u003c\/p\u003e\n\n\u003cp\u003eClick here for the 6V6-TK Data sheet.\u003c\/p\u003e\n\n\u003cp\u003eAbout Telefunken Black Diamond Series Vacuum Tubes\u003c\/p\u003e\n\n\u003cp\u003eTelefunken vacuum tubes have been the benchmark of excellence in all audio applications, both productions and reproduction, for many decades. Today, this rich history continues with the introduction of new production tubes from Telefunken Elektroakustik, in partnership with JJ tubes from the Carpathian mountains of Cadca in Slovakia.\u003c\/p\u003e\n\n\u003cp\u003eEach tube is meticulously measured for all critical parameters of performance including transconductance, gain, noise, and microphonics. All Telefunken branded tubes are hand picked to be the best examples of Eastern European construction in the proud tradition with which the name Telefunken Elektroakustik has become synonymous.\u003c\/p\u003e\n\n\u003cp\u003eIn addition to the rigorous testing procedure, all new production Telefunken tubes are cryogenically treated to ensure durability, and subjected to an extended burn-in period to ensure superior stability. The tubes are re-measured subsequent to burn-in, and again before final packaging, in order to guarantee that only the best, lowest noise tubes are offered.\u003c\/p\u003e\n\n\u003cp\u003eDisclaimer\u003c\/p\u003e\n\n\u003cp\u003eNeither SX Pro or TELEFUNKEN Elektroakustik will be held responsible (financially or otherwise) for equipment that is damaged from the use of tubes purchased from us. Each tube has been fully tested to ensure reliability and is guaranteed to perform as described. It is the responsibility of the customer to consult with the equipment manufacturer (or qualified technician) for the selection of proper tubes and proper installation and biasing procedures.\u003c\/p\u003e","brand":"Telefunken Elektroakustik","offers":[{"title":"Default Title","offer_id":57959721402751,"sku":"9797","price":115.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1008\/1216\/1407\/files\/9797-1.jpg?v=1783943302"},{"product_id":"telefunken-valve-el34-tk-vacuum-tube-matched-quad","title":"Telefunken Valve EL34-TK Vacuum Tube (Matched Quad)","description":"\u003cp\u003eThe TELEFUNKEN EL34-TK has been designed to handle a slightly higher grid voltage than the traditional EL34. Offering a tight low end and smooth mids, it will bring new life to guitar and hi-fi amplifiers while retaining the historic tone TELEFUNKEN tubes have always been know for.\u003c\/p\u003e\n\n\u003cp\u003eThe EL34 is smaller in diameter and taller than the 6L6 and is capable of a higher plate voltage; factors that help give the EL34 its unique output stage properties. The EL34 is a high output pentode tube as opposed to other output tubes like the 6L6 and the 6550, which are beam tetrode tubes.\u003c\/p\u003e\n\n\u003cp\u003eMullard, which was a subsidiary of Phillips, originally released the EL34 in 1953. EL34’s are most commonly used in pairs in a Class AB1 push-pull configuration. This EL34 is found in many amplifiers that offer the “British tone”, like Marshall and Hi-Watt, where the 6L6 is more commonly found in American made amps like those from Fender and Mesa Boogie.\u003c\/p\u003e\n\n\u003cp\u003eClick here for the EL34-TK Data sheet.\u003c\/p\u003e\n\n\u003cp\u003eAbout Telefunken Black Diamond Series Vacuum Tubes\u003c\/p\u003e\n\n\u003cp\u003eTelefunken vacuum tubes have been the benchmark of excellence in all audio applications, both productions and reproduction, for many decades. Today, this rich history continues with the introduction of new production tubes from Telefunken Elektroakustik, in partnership with JJ tubes from the Carpathian mountains of Cadca in Slovakia.\u003c\/p\u003e\n\n\u003cp\u003eEach tube is meticulously measured for all critical parameters of performance including transconductance, gain, noise, and microphonics. All Telefunken branded tubes are hand picked to be the best examples of Eastern European construction in the proud tradition with which the name Telefunken Elektroakustik has become synonymous.\u003c\/p\u003e\n\n\u003cp\u003eIn addition to the rigorous testing procedure, all new production Telefunken tubes are cryogenically treated to ensure durability, and subjected to an extended burn-in period to ensure superior stability. The tubes are re-measured subsequent to burn-in, and again before final packaging, in order to guarantee that only the best, lowest noise tubes are offered.\u003c\/p\u003e\n\n\u003cp\u003eDisclaimer\u003c\/p\u003e\n\n\u003cp\u003eNeither SX Pro or TELEFUNKEN Elektroakustik will be held responsible (financially or otherwise) for equipment that is damaged from the use of tubes purchased from us. Each tube has been fully tested to ensure reliability and is guaranteed to perform as described. It is the responsibility of the customer to consult with the equipment manufacturer (or qualified technician) for the selection of proper tubes and proper installation and biasing procedures.\u003c\/p\u003e","brand":"Telefunken Elektroakustik","offers":[{"title":"Default Title","offer_id":57959721533823,"sku":"9796","price":270.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1008\/1216\/1407\/files\/9796-1.jpg?v=1783943306"},{"product_id":"telefunken-valve-el34-tk-vacuum-tube-matched-pair","title":"Telefunken Valve EL34-TK Vacuum Tube (Matched Pair)","description":"\u003cp\u003eThe TELEFUNKEN EL34-TK has been designed to handle a slightly higher grid voltage than the traditional EL34. Offering a tight low end and smooth mids, it will bring new life to guitar and hi-fi amplifiers while retaining the historic tone TELEFUNKEN tubes have always been know for.\u003c\/p\u003e\n\n\u003cp\u003eThe EL34 is smaller in diameter and taller than the 6L6 and is capable of a higher plate voltage; factors that help give the EL34 its unique output stage properties. The EL34 is a high output pentode tube as opposed to other output tubes like the 6L6 and the 6550, which are beam tetrode tubes.\u003c\/p\u003e\n\n\u003cp\u003eMullard, which was a subsidiary of Phillips, originally released the EL34 in 1953. EL34’s are most commonly used in pairs in a Class AB1 push-pull configuration. This EL34 is found in many amplifiers that offer the “British tone”, like Marshall and Hi-Watt, where the 6L6 is more commonly found in American made amps like those from Fender and Mesa Boogie.\u003c\/p\u003e\n\n\u003cp\u003eClick here for the EL34-TK Data sheet.\u003c\/p\u003e\n\n\u003cp\u003eAbout Telefunken Black Diamond Series Vacuum Tubes\u003c\/p\u003e\n\n\u003cp\u003eTelefunken vacuum tubes have been the benchmark of excellence in all audio applications, both productions and reproduction, for many decades. Today, this rich history continues with the introduction of new production tubes from Telefunken Elektroakustik, in partnership with JJ tubes from the Carpathian mountains of Cadca in Slovakia.\u003c\/p\u003e\n\n\u003cp\u003eEach tube is meticulously measured for all critical parameters of performance including transconductance, gain, noise, and microphonics. All Telefunken branded tubes are hand picked to be the best examples of Eastern European construction in the proud tradition with which the name Telefunken Elektroakustik has become synonymous.\u003c\/p\u003e\n\n\u003cp\u003eIn addition to the rigorous testing procedure, all new production Telefunken tubes are cryogenically treated to ensure durability, and subjected to an extended burn-in period to ensure superior stability. The tubes are re-measured subsequent to burn-in, and again before final packaging, in order to guarantee that only the best, lowest noise tubes are offered.\u003c\/p\u003e\n\n\u003cp\u003eDisclaimer\u003c\/p\u003e\n\n\u003cp\u003eNeither SX Pro or TELEFUNKEN Elektroakustik will be held responsible (financially or otherwise) for equipment that is damaged from the use of tubes purchased from us. Each tube has been fully tested to ensure reliability and is guaranteed to perform as described. It is the responsibility of the customer to consult with the equipment manufacturer (or qualified technician) for the selection of proper tubes and proper installation and biasing procedures.\u003c\/p\u003e","brand":"Telefunken Elektroakustik","offers":[{"title":"Default Title","offer_id":57959721632127,"sku":"9795","price":135.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1008\/1216\/1407\/files\/9795-1.jpg?v=1783943300"},{"product_id":"telefunken-valve-el84-tk-vacuum-tube-matched-quad","title":"Telefunken Valve EL84-TK Vacuum Tube (Matched Quad)","description":"\u003cp\u003eThe TELEFUNKEN EL84-TK is a perfect replacement for any EL84 \/ 6BQ5 tube offering a reliable and great sound. It is a thermionic valve of the power pentode type.\u003c\/p\u003e\n\n\u003cp\u003eOriginally designed for the output stages of audio frequency amplifiers, the EL84 can deliver up to 17 watts. Although it is physically smaller than most common output tubes, this pentode tube can really deliver. In many ways it is similar to the EL34 but without the output “horse power”.\u003c\/p\u003e\n\n\u003cp\u003eThe EL84, like its EL34 cousin, are found in many British amplifiers, particularly those from VOX. When overdriven, the EL84 power tubes in these amplifiers produce a distinctive chiming and articulate sound when compared to 6L6 tubes more commonly used in American amplifiers.\u003c\/p\u003e\n\n\u003cp\u003eClick here for the EL84-TK Data sheet.\u003c\/p\u003e\n\n\u003cp\u003eAbout Telefunken Black Diamond Series Vacuum Tubes\u003c\/p\u003e\n\n\u003cp\u003eTelefunken vacuum tubes have been the benchmark of excellence in all audio applications, both productions and reproduction, for many decades. Today, this rich history continues with the introduction of new production tubes from Telefunken Elektroakustik, in partnership with JJ tubes from the Carpathian mountains of Cadca in Slovakia.\u003c\/p\u003e\n\n\u003cp\u003eEach tube is meticulously measured for all critical parameters of performance including transconductance, gain, noise, and microphonics. All Telefunken branded tubes are hand picked to be the best examples of Eastern European construction in the proud tradition with which the name Telefunken Elektroakustik has become synonymous.\u003c\/p\u003e\n\n\u003cp\u003eIn addition to the rigorous testing procedure, all new production Telefunken tubes are cryogenically treated to ensure durability, and subjected to an extended burn-in period to ensure superior stability. The tubes are re-measured subsequent to burn-in, and again before final packaging, in order to guarantee that only the best, lowest noise tubes are offered.\u003c\/p\u003e\n\n\u003cp\u003eDisclaimer\u003c\/p\u003e\n\n\u003cp\u003eNeither SX Pro or TELEFUNKEN Elektroakustik will be held responsible (financially or otherwise) for equipment that is damaged from the use of tubes purchased from us. Each tube has been fully tested to ensure reliability and is guaranteed to perform as described. It is the responsibility of the customer to consult with the equipment manufacturer (or qualified technician) for the selection of proper tubes and proper installation and biasing procedures.\u003c\/p\u003e","brand":"Telefunken Elektroakustik","offers":[{"title":"Default Title","offer_id":57959721763199,"sku":"9794","price":198.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1008\/1216\/1407\/files\/9794-1.jpg?v=1783943307"},{"product_id":"telefunken-valve-el84-tk-vacuum-tube-matched-pair","title":"Telefunken Valve EL84-TK Vacuum Tube (Matched Pair)","description":"\u003cp\u003eThe TELEFUNKEN EL84-TK is a perfect replacement for any EL84 \/ 6BQ5 tube offering a reliable and great sound. It is a thermionic valve of the power pentode type.\u003c\/p\u003e\n\n\u003cp\u003eOriginally designed for the output stages of audio frequency amplifiers, the EL84 can deliver up to 17 watts. Although it is physically smaller than most common output tubes, this pentode tube can really deliver. In many ways it is similar to the EL34 but without the output “horse power”.\u003c\/p\u003e\n\n\u003cp\u003eThe EL84, like its EL34 cousin, are found in many British amplifiers, particularly those from VOX. When overdriven, the EL84 power tubes in these amplifiers produce a distinctive chiming and articulate sound when compared to 6L6 tubes more commonly used in American amplifiers.\u003c\/p\u003e\n\n\u003cp\u003eClick here for the EL84-TK Data sheet.\u003c\/p\u003e\n\n\u003cp\u003eAbout Telefunken Black Diamond Series Vacuum Tubes\u003c\/p\u003e\n\n\u003cp\u003eTelefunken vacuum tubes have been the benchmark of excellence in all audio applications, both productions and reproduction, for many decades. Today, this rich history continues with the introduction of new production tubes from Telefunken Elektroakustik, in partnership with JJ tubes from the Carpathian mountains of Cadca in Slovakia.\u003c\/p\u003e\n\n\u003cp\u003eEach tube is meticulously measured for all critical parameters of performance including transconductance, gain, noise, and microphonics. All Telefunken branded tubes are hand picked to be the best examples of Eastern European construction in the proud tradition with which the name Telefunken Elektroakustik has become synonymous.\u003c\/p\u003e\n\n\u003cp\u003eIn addition to the rigorous testing procedure, all new production Telefunken tubes are cryogenically treated to ensure durability, and subjected to an extended burn-in period to ensure superior stability. The tubes are re-measured subsequent to burn-in, and again before final packaging, in order to guarantee that only the best, lowest noise tubes are offered.\u003c\/p\u003e\n\n\u003cp\u003eDisclaimer\u003c\/p\u003e\n\n\u003cp\u003eNeither SX Pro or TELEFUNKEN Elektroakustik will be held responsible (financially or otherwise) for equipment that is damaged from the use of tubes purchased from us. Each tube has been fully tested to ensure reliability and is guaranteed to perform as described. It is the responsibility of the customer to consult with the equipment manufacturer (or qualified technician) for the selection of proper tubes and proper installation and biasing procedures.\u003c\/p\u003e","brand":"Telefunken Elektroakustik","offers":[{"title":"Default Title","offer_id":57959721828735,"sku":"9793","price":99.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1008\/1216\/1407\/files\/9793-1.jpg?v=1783943301"},{"product_id":"telefunken-valve-e88cc-tk-6922-vacuum-tube-balanced-matched-quad","title":"Telefunken Valve E88CC-TK (6922) Vacuum Tube (Balanced, Matched Quad)","description":"\u003cp\u003eThe newly produced TELEFUNKEN E88CC-TK gold pin tube resurrects the transparent tone and harmonic impact of historical Siemens and TELEFUNKEN tubes. Whether it is installed in a phono stage or microphone preamplifier, this E88CC-TK will breathe new life into all audio equipment offering precise imaging, unmatched dynamics and a large full-bodied soundstage.\u003c\/p\u003e\n\n\u003cp\u003eAlso known as the 6922, the E88CC was originally targeted for test equipment and radar. The E88CC has medium gain, low noise and is a favorite for tight sounding audio input stages. There are some that will argue that the E88CC is the best sounding input tube ever designed.\u003c\/p\u003e\n\n\u003cp\u003eThe E88CC is a dual triode tube like the 12AX7, but has a different pin configuration making it not a direct plug-in replacement. It is most commonly employed in amplifier designs where more clean headroom is desired. The medium gain characteristic of the tube and the low-noise design are part of why this tube sounds as good as it does in microphone preamplifier and phono preamplifier applications.\u003c\/p\u003e\n\n\u003cp\u003eClick here for the E88CC-TK Data sheet.\u003c\/p\u003e\n\n\u003cp\u003eAbout Telefunken Black Diamond Series Vacuum Tubes\u003c\/p\u003e\n\n\u003cp\u003eTelefunken vacuum tubes have been the benchmark of excellence in all audio applications, both productions and reproduction, for many decades. Today, this rich history continues with the introduction of new production tubes from Telefunken Elektroakustik, in partnership with JJ tubes from the Carpathian mountains of Cadca in Slovakia.\u003c\/p\u003e\n\n\u003cp\u003eEach tube is meticulously measured for all critical parameters of performance including transconductance, gain, noise, and microphonics. All Telefunken branded tubes are hand picked to be the best examples of Eastern European construction in the proud tradition with which the name Telefunken Elektroakustik has become synonymous.\u003c\/p\u003e\n\n\u003cp\u003eIn addition to the rigorous testing procedure, all new production Telefunken tubes are cryogenically treated to ensure durability, and subjected to an extended burn-in period to ensure superior stability. The tubes are re-measured subsequent to burn-in, and again before final packaging, in order to guarantee that only the best, lowest noise tubes are offered.\u003c\/p\u003e\n\n\u003cp\u003eDisclaimer\u003c\/p\u003e\n\n\u003cp\u003eNeither SX Pro or TELEFUNKEN Elektroakustik will be held responsible (financially or otherwise) for equipment that is damaged from the use of tubes purchased from us. Each tube has been fully tested to ensure reliability and is guaranteed to perform as described. It is the responsibility of the customer to consult with the equipment manufacturer (or qualified technician) for the selection of proper tubes and proper installation and biasing procedures.\u003c\/p\u003e","brand":"Telefunken Elektroakustik","offers":[{"title":"Default Title","offer_id":57959721894271,"sku":"9792","price":330.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1008\/1216\/1407\/files\/9792-1.jpg?v=1783943307"},{"product_id":"telefunken-valve-e88cc-tk-6922-vacuum-tube-matched-quad","title":"Telefunken Valve E88CC-TK (6922) Vacuum Tube (Matched Quad)","description":"\u003cp\u003eThe newly produced TELEFUNKEN E88CC-TK gold pin tube resurrects the transparent tone and harmonic impact of historical Siemens and TELEFUNKEN tubes. Whether it is installed in a phono stage or microphone preamplifier, this E88CC-TK will breathe new life into all audio equipment offering precise imaging, unmatched dynamics and a large full-bodied soundstage.\u003c\/p\u003e\n\n\u003cp\u003eAlso known as the 6922, the E88CC was originally targeted for test equipment and radar. The E88CC has medium gain, low noise and is a favorite for tight sounding audio input stages. There are some that will argue that the E88CC is the best sounding input tube ever designed.\u003c\/p\u003e\n\n\u003cp\u003eThe E88CC is a dual triode tube like the 12AX7, but has a different pin configuration making it not a direct plug-in replacement. It is most commonly employed in amplifier designs where more clean headroom is desired. The medium gain characteristic of the tube and the low-noise design are part of why this tube sounds as good as it does in microphone preamplifier and phono preamplifier applications.\u003c\/p\u003e\n\n\u003cp\u003eClick here for the E88CC-TK Data sheet.\u003c\/p\u003e\n\n\u003cp\u003eAbout Telefunken Black Diamond Series Vacuum Tubes\u003c\/p\u003e\n\n\u003cp\u003eTelefunken vacuum tubes have been the benchmark of excellence in all audio applications, both productions and reproduction, for many decades. Today, this rich history continues with the introduction of new production tubes from Telefunken Elektroakustik, in partnership with JJ tubes from the Carpathian mountains of Cadca in Slovakia.\u003c\/p\u003e\n\n\u003cp\u003eEach tube is meticulously measured for all critical parameters of performance including transconductance, gain, noise, and microphonics. All Telefunken branded tubes are hand picked to be the best examples of Eastern European construction in the proud tradition with which the name Telefunken Elektroakustik has become synonymous.\u003c\/p\u003e\n\n\u003cp\u003eIn addition to the rigorous testing procedure, all new production Telefunken tubes are cryogenically treated to ensure durability, and subjected to an extended burn-in period to ensure superior stability. The tubes are re-measured subsequent to burn-in, and again before final packaging, in order to guarantee that only the best, lowest noise tubes are offered.\u003c\/p\u003e\n\n\u003cp\u003eDisclaimer\u003c\/p\u003e\n\n\u003cp\u003eNeither SX Pro or TELEFUNKEN Elektroakustik will be held responsible (financially or otherwise) for equipment that is damaged from the use of tubes purchased from us. Each tube has been fully tested to ensure reliability and is guaranteed to perform as described. It is the responsibility of the customer to consult with the equipment manufacturer (or qualified technician) for the selection of proper tubes and proper installation and biasing procedures.\u003c\/p\u003e","brand":"Telefunken Elektroakustik","offers":[{"title":"Default Title","offer_id":57959722025343,"sku":"9791","price":310.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1008\/1216\/1407\/files\/9791-1.jpg?v=1783943306"},{"product_id":"telefunken-valve-e88cc-tk-6922-vacuum-tube-balanced-matched-pair","title":"Telefunken Valve E88CC-TK (6922) Vacuum Tube (Balanced, Matched Pair)","description":"\u003cp\u003eThe newly produced TELEFUNKEN E88CC-TK gold pin tube resurrects the transparent tone and harmonic impact of historical Siemens and TELEFUNKEN tubes. Whether it is installed in a phono stage or microphone preamplifier, this E88CC-TK will breathe new life into all audio equipment offering precise imaging, unmatched dynamics and a large full-bodied soundstage.\u003c\/p\u003e\n\n\u003cp\u003eAlso known as the 6922, the E88CC was originally targeted for test equipment and radar. The E88CC has medium gain, low noise and is a favorite for tight sounding audio input stages. There are some that will argue that the E88CC is the best sounding input tube ever designed.\u003c\/p\u003e\n\n\u003cp\u003eThe E88CC is a dual triode tube like the 12AX7, but has a different pin configuration making it not a direct plug-in replacement. It is most commonly employed in amplifier designs where more clean headroom is desired. The medium gain characteristic of the tube and the low-noise design are part of why this tube sounds as good as it does in microphone preamplifier and phono preamplifier applications.\u003c\/p\u003e\n\n\u003cp\u003eClick here for the E88CC-TK Data sheet.\u003c\/p\u003e\n\n\u003cp\u003eAbout Telefunken Black Diamond Series Vacuum Tubes\u003c\/p\u003e\n\n\u003cp\u003eTelefunken vacuum tubes have been the benchmark of excellence in all audio applications, both productions and reproduction, for many decades. Today, this rich history continues with the introduction of new production tubes from Telefunken Elektroakustik, in partnership with JJ tubes from the Carpathian mountains of Cadca in Slovakia.\u003c\/p\u003e\n\n\u003cp\u003eEach tube is meticulously measured for all critical parameters of performance including transconductance, gain, noise, and microphonics. All Telefunken branded tubes are hand picked to be the best examples of Eastern European construction in the proud tradition with which the name Telefunken Elektroakustik has become synonymous.\u003c\/p\u003e\n\n\u003cp\u003eIn addition to the rigorous testing procedure, all new production Telefunken tubes are cryogenically treated to ensure durability, and subjected to an extended burn-in period to ensure superior stability. The tubes are re-measured subsequent to burn-in, and again before final packaging, in order to guarantee that only the best, lowest noise tubes are offered.\u003c\/p\u003e\n\n\u003cp\u003eDisclaimer\u003c\/p\u003e\n\n\u003cp\u003eNeither SX Pro or TELEFUNKEN Elektroakustik will be held responsible (financially or otherwise) for equipment that is damaged from the use of tubes purchased from us. Each tube has been fully tested to ensure reliability and is guaranteed to perform as described. It is the responsibility of the customer to consult with the equipment manufacturer (or qualified technician) for the selection of proper tubes and proper installation and biasing procedures.\u003c\/p\u003e","brand":"Telefunken Elektroakustik","offers":[{"title":"Default Title","offer_id":57959722254719,"sku":"9790","price":165.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1008\/1216\/1407\/files\/9790-1.jpg?v=1783943300"},{"product_id":"telefunken-valve-e88cc-tk-6922-vacuum-tube-matched-pair","title":"Telefunken Valve E88CC-TK (6922) Vacuum Tube (Matched Pair)","description":"\u003cp\u003eThe newly produced TELEFUNKEN E88CC-TK gold pin tube resurrects the transparent tone and harmonic impact of historical Siemens and TELEFUNKEN tubes. Whether it is installed in a phono stage or microphone preamplifier, this E88CC-TK will breathe new life into all audio equipment offering precise imaging, unmatched dynamics and a large full-bodied soundstage.\u003c\/p\u003e\n\n\u003cp\u003eAlso known as the 6922, the E88CC was originally targeted for test equipment and radar. The E88CC has medium gain, low noise and is a favorite for tight sounding audio input stages. There are some that will argue that the E88CC is the best sounding input tube ever designed.\u003c\/p\u003e\n\n\u003cp\u003eThe E88CC is a dual triode tube like the 12AX7, but has a different pin configuration making it not a direct plug-in replacement. It is most commonly employed in amplifier designs where more clean headroom is desired. The medium gain characteristic of the tube and the low-noise design are part of why this tube sounds as good as it does in microphone preamplifier and phono preamplifier applications.\u003c\/p\u003e\n\n\u003cp\u003eClick here for the E88CC-TK Data sheet.\u003c\/p\u003e\n\n\u003cp\u003eAbout Telefunken Black Diamond Series Vacuum Tubes\u003c\/p\u003e\n\n\u003cp\u003eTelefunken vacuum tubes have been the benchmark of excellence in all audio applications, both productions and reproduction, for many decades. Today, this rich history continues with the introduction of new production tubes from Telefunken Elektroakustik, in partnership with JJ tubes from the Carpathian mountains of Cadca in Slovakia.\u003c\/p\u003e\n\n\u003cp\u003eEach tube is meticulously measured for all critical parameters of performance including transconductance, gain, noise, and microphonics. All Telefunken branded tubes are hand picked to be the best examples of Eastern European construction in the proud tradition with which the name Telefunken Elektroakustik has become synonymous.\u003c\/p\u003e\n\n\u003cp\u003eIn addition to the rigorous testing procedure, all new production Telefunken tubes are cryogenically treated to ensure durability, and subjected to an extended burn-in period to ensure superior stability. The tubes are re-measured subsequent to burn-in, and again before final packaging, in order to guarantee that only the best, lowest noise tubes are offered.\u003c\/p\u003e\n\n\u003cp\u003eDisclaimer\u003c\/p\u003e\n\n\u003cp\u003eNeither SX Pro or TELEFUNKEN Elektroakustik will be held responsible (financially or otherwise) for equipment that is damaged from the use of tubes purchased from us. Each tube has been fully tested to ensure reliability and is guaranteed to perform as described. It is the responsibility of the customer to consult with the equipment manufacturer (or qualified technician) for the selection of proper tubes and proper installation and biasing procedures.\u003c\/p\u003e","brand":"Telefunken Elektroakustik","offers":[{"title":"Default Title","offer_id":57959722320255,"sku":"9789","price":155.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1008\/1216\/1407\/files\/9789-1.jpg?v=1783943301"},{"product_id":"telefunken-valve-e88cc-tk-6922-vacuum-tube-balanced","title":"Telefunken Valve E88CC-TK (6922) Vacuum Tube (Balanced)","description":"\u003cp\u003eThe newly produced TELEFUNKEN E88CC-TK gold pin tube resurrects the transparent tone and harmonic impact of historical Siemens and TELEFUNKEN tubes. Whether it is installed in a phono stage or microphone preamplifier, this E88CC-TK will breathe new life into all audio equipment offering precise imaging, unmatched dynamics and a large full-bodied soundstage.\u003c\/p\u003e\n\n\u003cp\u003eAlso known as the 6922, the E88CC was originally targeted for test equipment and radar. The E88CC has medium gain, low noise and is a favorite for tight sounding audio input stages. There are some that will argue that the E88CC is the best sounding input tube ever designed.\u003c\/p\u003e\n\n\u003cp\u003eThe E88CC is a dual triode tube like the 12AX7, but has a different pin configuration making it not a direct plug-in replacement. It is most commonly employed in amplifier designs where more clean headroom is desired. The medium gain characteristic of the tube and the low-noise design are part of why this tube sounds as good as it does in microphone preamplifier and phono preamplifier applications.\u003c\/p\u003e\n\n\u003cp\u003eClick here for the E88CC-TK Data sheet.\u003c\/p\u003e\n\n\u003cp\u003eAbout Telefunken Black Diamond Series Vacuum Tubes\u003c\/p\u003e\n\n\u003cp\u003eTelefunken vacuum tubes have been the benchmark of excellence in all audio applications, both productions and reproduction, for many decades. Today, this rich history continues with the introduction of new production tubes from Telefunken Elektroakustik, in partnership with JJ tubes from the Carpathian mountains of Cadca in Slovakia.\u003c\/p\u003e\n\n\u003cp\u003eEach tube is meticulously measured for all critical parameters of performance including transconductance, gain, noise, and microphonics. All Telefunken branded tubes are hand picked to be the best examples of Eastern European construction in the proud tradition with which the name Telefunken Elektroakustik has become synonymous.\u003c\/p\u003e\n\n\u003cp\u003eIn addition to the rigorous testing procedure, all new production Telefunken tubes are cryogenically treated to ensure durability, and subjected to an extended burn-in period to ensure superior stability. The tubes are re-measured subsequent to burn-in, and again before final packaging, in order to guarantee that only the best, lowest noise tubes are offered.\u003c\/p\u003e\n\n\u003cp\u003eDisclaimer\u003c\/p\u003e\n\n\u003cp\u003eNeither SX Pro or TELEFUNKEN Elektroakustik will be held responsible (financially or otherwise) for equipment that is damaged from the use of tubes purchased from us. Each tube has been fully tested to ensure reliability and is guaranteed to perform as described. It is the responsibility of the customer to consult with the equipment manufacturer (or qualified technician) for the selection of proper tubes and proper installation and biasing procedures.\u003c\/p\u003e","brand":"Telefunken Elektroakustik","offers":[{"title":"Default Title","offer_id":57959722418559,"sku":"9788","price":80.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1008\/1216\/1407\/files\/9788-1.jpg?v=1783943301"},{"product_id":"telefunken-valve-ecc83-tk-12ax7-vacuum-tube-balanced-matched-quad","title":"Telefunken Valve ECC83-TK (12AX7) Vacuum Tube (Balanced, Matched Quad)","description":"\u003cp\u003eThe TELEFUNKEN ECC83-TK is a well-balanced tube suited for all types of music and playing styles. Designed to allow for cleaner headroom than higher gain 12AX7s when pushed into overdrive, it offers distortion with strongly defined lows, a rich mid range and clean, smooth highs.\u003cbr\u003e\nDeveloped by RCA and released in September of 1947, the 12AX7 is a high gain \/ low noise tube that is the most popular tube used in input \/ inter-stage audio amplifiers. The dual triode design makes the 12AX7 compact, relatively inexpensive, and produces a high quality full frequency response.\u003c\/p\u003e\n\n\u003cp\u003e12AX7’s are known for their rich even order harmonic distortion when driven into overdrive. Even order harmonics fit into the western musical scale and are more pleasing to the ear than the harsh odd order harmonic distortion created by transistors. The 12AX7 is also known as the ECC83, which was the European designation found on tubes from Phillips \/ Mullard.\u003c\/p\u003e\n\n\u003cp\u003eAbout Telefunken Black Diamond Series Vacuum Tubes\u003c\/p\u003e\n\n\u003cp\u003eTelefunken vacuum tubes have been the benchmark of excellence in all audio applications, both productions and reproduction, for many decades. Today, this rich history continues with the introduction of new production tubes from Telefunken Elektroakustik, in partnership with JJ tubes from the Carpathian mountains of Cadca in Slovakia.\u003c\/p\u003e\n\n\u003cp\u003eEach tube is meticulously measured for all critical parameters of performance including transconductance, gain, noise, and microphonics. All Telefunken branded tubes are hand picked to be the best examples of Eastern European construction in the proud tradition with which the name Telefunken Elektroakustik has become synonymous.\u003c\/p\u003e\n\n\u003cp\u003eIn addition to the rigorous testing procedure, all new production Telefunken tubes are cryogenically treated to ensure durability, and subjected to an extended burn-in period to ensure superior stability. The tubes are re-measured subsequent to burn-in, and again before final packaging, in order to guarantee that only the best, lowest noise tubes are offered.\u003c\/p\u003e\n\n\u003cp\u003eDisclaimer\u003c\/p\u003e\n\n\u003cp\u003eNeither SX Pro or TELEFUNKEN Elektroakustik will be held responsible (financially or otherwise) for equipment that is damaged from the use of tubes purchased from us. Each tube has been fully tested to ensure reliability and is guaranteed to perform as described. It is the responsibility of the customer to consult with the equipment manufacturer (or qualified technician) for the selection of proper tubes and proper installation and biasing procedures.\u003c\/p\u003e","brand":"Telefunken Elektroakustik","offers":[{"title":"Default Title","offer_id":57959722484095,"sku":"9787","price":330.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1008\/1216\/1407\/files\/9787-1.jpg?v=1783943306"},{"product_id":"telefunken-valve-ecc83-tk-12ax7-vacuum-tube-matched-quad","title":"Telefunken Valve ECC83-TK (12AX7) Vacuum Tube (Matched Quad)","description":"\u003cp\u003eThe TELEFUNKEN ECC83-TK is a well-balanced tube suited for all types of music and playing styles. Designed to allow for cleaner headroom than higher gain 12AX7s when pushed into overdrive, it offers distortion with strongly defined lows, a rich mid range and clean, smooth highs.\u003cbr\u003e\nDeveloped by RCA and released in September of 1947, the 12AX7 is a high gain \/ low noise tube that is the most popular tube used in input \/ inter-stage audio amplifiers. The dual triode design makes the 12AX7 compact, relatively inexpensive, and produces a high quality full frequency response.\u003c\/p\u003e\n\n\u003cp\u003e12AX7’s are known for their rich even order harmonic distortion when driven into overdrive. Even order harmonics fit into the western musical scale and are more pleasing to the ear than the harsh odd order harmonic distortion created by transistors. The 12AX7 is also known as the ECC83, which was the European designation found on tubes from Phillips \/ Mullard.\u003c\/p\u003e\n\n\u003cp\u003eAbout Telefunken Black Diamond Series Vacuum Tubes\u003c\/p\u003e\n\n\u003cp\u003eTelefunken vacuum tubes have been the benchmark of excellence in all audio applications, both productions and reproduction, for many decades. Today, this rich history continues with the introduction of new production tubes from Telefunken Elektroakustik, in partnership with JJ tubes from the Carpathian mountains of Cadca in Slovakia.\u003c\/p\u003e\n\n\u003cp\u003eEach tube is meticulously measured for all critical parameters of performance including transconductance, gain, noise, and microphonics. All Telefunken branded tubes are hand picked to be the best examples of Eastern European construction in the proud tradition with which the name Telefunken Elektroakustik has become synonymous.\u003c\/p\u003e\n\n\u003cp\u003eIn addition to the rigorous testing procedure, all new production Telefunken tubes are cryogenically treated to ensure durability, and subjected to an extended burn-in period to ensure superior stability. The tubes are re-measured subsequent to burn-in, and again before final packaging, in order to guarantee that only the best, lowest noise tubes are offered.\u003c\/p\u003e\n\n\u003cp\u003eDisclaimer\u003c\/p\u003e\n\n\u003cp\u003eNeither SX Pro or TELEFUNKEN Elektroakustik will be held responsible (financially or otherwise) for equipment that is damaged from the use of tubes purchased from us. Each tube has been fully tested to ensure reliability and is guaranteed to perform as described. It is the responsibility of the customer to consult with the equipment manufacturer (or qualified technician) for the selection of proper tubes and proper installation and biasing procedures.\u003c\/p\u003e","brand":"Telefunken Elektroakustik","offers":[{"title":"Default Title","offer_id":57959722582399,"sku":"9786","price":310.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1008\/1216\/1407\/files\/9786-1.jpg?v=1783943306"},{"product_id":"telefunken-valve-ecc83-tk-12ax7-vacuum-tube-balanced-matched-pair","title":"Telefunken Valve ECC83-TK (12AX7) Vacuum Tube (Balanced, Matched Pair)","description":"\u003cp\u003eThe TELEFUNKEN ECC83-TK is a well-balanced tube suited for all types of music and playing styles. Designed to allow for cleaner headroom than higher gain 12AX7s when pushed into overdrive, it offers distortion with strongly defined lows, a rich mid range and clean, smooth highs.\u003cbr\u003e\nDeveloped by RCA and released in September of 1947, the 12AX7 is a high gain \/ low noise tube that is the most popular tube used in input \/ inter-stage audio amplifiers. The dual triode design makes the 12AX7 compact, relatively inexpensive, and produces a high quality full frequency response.\u003c\/p\u003e\n\n\u003cp\u003e12AX7’s are known for their rich even order harmonic distortion when driven into overdrive. Even order harmonics fit into the western musical scale and are more pleasing to the ear than the harsh odd order harmonic distortion created by transistors. The 12AX7 is also known as the ECC83, which was the European designation found on tubes from Phillips \/ Mullard.\u003c\/p\u003e\n\n\u003cp\u003eAbout Telefunken Black Diamond Series Vacuum Tubes\u003c\/p\u003e\n\n\u003cp\u003eTelefunken vacuum tubes have been the benchmark of excellence in all audio applications, both productions and reproduction, for many decades. Today, this rich history continues with the introduction of new production tubes from Telefunken Elektroakustik, in partnership with JJ tubes from the Carpathian mountains of Cadca in Slovakia.\u003c\/p\u003e\n\n\u003cp\u003eEach tube is meticulously measured for all critical parameters of performance including transconductance, gain, noise, and microphonics. All Telefunken branded tubes are hand picked to be the best examples of Eastern European construction in the proud tradition with which the name Telefunken Elektroakustik has become synonymous.\u003c\/p\u003e\n\n\u003cp\u003eIn addition to the rigorous testing procedure, all new production Telefunken tubes are cryogenically treated to ensure durability, and subjected to an extended burn-in period to ensure superior stability. The tubes are re-measured subsequent to burn-in, and again before final packaging, in order to guarantee that only the best, lowest noise tubes are offered.\u003c\/p\u003e\n\n\u003cp\u003eDisclaimer\u003c\/p\u003e\n\n\u003cp\u003eNeither SX Pro or TELEFUNKEN Elektroakustik will be held responsible (financially or otherwise) for equipment that is damaged from the use of tubes purchased from us. Each tube has been fully tested to ensure reliability and is guaranteed to perform as described. It is the responsibility of the customer to consult with the equipment manufacturer (or qualified technician) for the selection of proper tubes and proper installation and biasing procedures.\u003c\/p\u003e","brand":"Telefunken Elektroakustik","offers":[{"title":"Default Title","offer_id":57959722647935,"sku":"9785","price":165.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1008\/1216\/1407\/files\/9785-1.jpg?v=1783943300"},{"product_id":"telefunken-valve-ecc83-tk-12ax7-vacuum-tube-matched-pair","title":"Telefunken Valve ECC83-TK (12AX7) Vacuum Tube (Matched Pair)","description":"\u003cp\u003eThe TELEFUNKEN ECC83-TK is a well-balanced tube suited for all types of music and playing styles. Designed to allow for cleaner headroom than higher gain 12AX7s when pushed into overdrive, it offers distortion with strongly defined lows, a rich mid range and clean, smooth highs.\u003cbr\u003e\nDeveloped by RCA and released in September of 1947, the 12AX7 is a high gain \/ low noise tube that is the most popular tube used in input \/ inter-stage audio amplifiers. The dual triode design makes the 12AX7 compact, relatively inexpensive, and produces a high quality full frequency response.\u003c\/p\u003e\n\n\u003cp\u003e12AX7’s are known for their rich even order harmonic distortion when driven into overdrive. Even order harmonics fit into the western musical scale and are more pleasing to the ear than the harsh odd order harmonic distortion created by transistors. The 12AX7 is also known as the ECC83, which was the European designation found on tubes from Phillips \/ Mullard.\u003c\/p\u003e\n\n\u003cp\u003eAbout Telefunken Black Diamond Series Vacuum Tubes\u003c\/p\u003e\n\n\u003cp\u003eTelefunken vacuum tubes have been the benchmark of excellence in all audio applications, both productions and reproduction, for many decades. Today, this rich history continues with the introduction of new production tubes from Telefunken Elektroakustik, in partnership with JJ tubes from the Carpathian mountains of Cadca in Slovakia.\u003c\/p\u003e\n\n\u003cp\u003eEach tube is meticulously measured for all critical parameters of performance including transconductance, gain, noise, and microphonics. All Telefunken branded tubes are hand picked to be the best examples of Eastern European construction in the proud tradition with which the name Telefunken Elektroakustik has become synonymous.\u003c\/p\u003e\n\n\u003cp\u003eIn addition to the rigorous testing procedure, all new production Telefunken tubes are cryogenically treated to ensure durability, and subjected to an extended burn-in period to ensure superior stability. The tubes are re-measured subsequent to burn-in, and again before final packaging, in order to guarantee that only the best, lowest noise tubes are offered.\u003c\/p\u003e\n\n\u003cp\u003eDisclaimer\u003c\/p\u003e\n\n\u003cp\u003eNeither SX Pro or TELEFUNKEN Elektroakustik will be held responsible (financially or otherwise) for equipment that is damaged from the use of tubes purchased from us. Each tube has been fully tested to ensure reliability and is guaranteed to perform as described. It is the responsibility of the customer to consult with the equipment manufacturer (or qualified technician) for the selection of proper tubes and proper installation and biasing procedures.\u003c\/p\u003e","brand":"Telefunken Elektroakustik","offers":[{"title":"Default Title","offer_id":57959722713471,"sku":"9784","price":155.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1008\/1216\/1407\/files\/9784-1.jpg?v=1783943300"},{"product_id":"telefunken-valve-ecc83-tk-12ax7-vacuum-tube-balanced","title":"Telefunken Valve ECC83-TK (12AX7) Vacuum Tube (Balanced)","description":"\u003cp\u003eThe TELEFUNKEN ECC83-TK is a well-balanced tube suited for all types of music and playing styles. Designed to allow for cleaner headroom than higher gain 12AX7s when pushed into overdrive, it offers distortion with strongly defined lows, a rich mid range and clean, smooth highs.\u003cbr\u003e\nDeveloped by RCA and released in September of 1947, the 12AX7 is a high gain \/ low noise tube that is the most popular tube used in input \/ inter-stage audio amplifiers. The dual triode design makes the 12AX7 compact, relatively inexpensive, and produces a high quality full frequency response.\u003c\/p\u003e\n\n\u003cp\u003e12AX7’s are known for their rich even order harmonic distortion when driven into overdrive. Even order harmonics fit into the western musical scale and are more pleasing to the ear than the harsh odd order harmonic distortion created by transistors. The 12AX7 is also known as the ECC83, which was the European designation found on tubes from Phillips \/ Mullard.\u003c\/p\u003e\n\n\u003cp\u003eAbout Telefunken Black Diamond Series Vacuum Tubes\u003c\/p\u003e\n\n\u003cp\u003eTelefunken vacuum tubes have been the benchmark of excellence in all audio applications, both productions and reproduction, for many decades. Today, this rich history continues with the introduction of new production tubes from Telefunken Elektroakustik, in partnership with JJ tubes from the Carpathian mountains of Cadca in Slovakia.\u003c\/p\u003e\n\n\u003cp\u003eEach tube is meticulously measured for all critical parameters of performance including transconductance, gain, noise, and microphonics. All Telefunken branded tubes are hand picked to be the best examples of Eastern European construction in the proud tradition with which the name Telefunken Elektroakustik has become synonymous.\u003c\/p\u003e\n\n\u003cp\u003eIn addition to the rigorous testing procedure, all new production Telefunken tubes are cryogenically treated to ensure durability, and subjected to an extended burn-in period to ensure superior stability. The tubes are re-measured subsequent to burn-in, and again before final packaging, in order to guarantee that only the best, lowest noise tubes are offered.\u003c\/p\u003e\n\n\u003cp\u003eDisclaimer\u003c\/p\u003e\n\n\u003cp\u003eNeither SX Pro or TELEFUNKEN Elektroakustik will be held responsible (financially or otherwise) for equipment that is damaged from the use of tubes purchased from us. Each tube has been fully tested to ensure reliability and is guaranteed to perform as described. It is the responsibility of the customer to consult with the equipment manufacturer (or qualified technician) for the selection of proper tubes and proper installation and biasing procedures.\u003c\/p\u003e","brand":"Telefunken Elektroakustik","offers":[{"title":"Default Title","offer_id":57959722779007,"sku":"9783","price":80.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1008\/1216\/1407\/files\/9783-1.jpg?v=1783943300"},{"product_id":"telefunken-valve-ecc82-tk-12au7-vacuum-tube-balanced-matched-quad","title":"Telefunken Valve ECC82-TK (12AU7) Vacuum Tube (Balanced, Matched Quad)","description":"\u003cp\u003eThe TELEFUNKEN Elektroakustik ECC82-TK is a newly manufactured and cryogenically treated rendition of the classic ECC82, commonly known by the American designation 12AU7. The ECC82 is a dual triode vacuum tube with medium gain and low noise characteristics, making it ideal for hi-fi audio equipment and instrument amplification. It is commonly used as a low-noise line amplifier, driver, and phase inverter in push-pull amplifier circuits, and can replace an ECC81\/12AX7 for lower gain applications.\u003c\/p\u003e\n\n\u003cp\u003eThe Black Diamond Series ECC82-TK features gold-plated pins and a gold-plated internal grid. The ECC82-TK is often considered more of a brighter tonal character rather than warm, and is characterized by its wide sense of dynamics and exceptionally quiet noise floor. It offers an accurate and focused image with a flat midrange and tight low end. The ECC82-TK is excellent in headphone amplifiers and high-end home audio and phono equipment, among many other applications. The Black Diamond Series ECC82-TK undergoes rigorous quality control and testing to deliver a dependable tube for the most demanding applications.\u003c\/p\u003e\n\n\u003cp\u003eClick here for the ECC82-TK Data sheet.\u003c\/p\u003e\n\n\u003cp\u003eAbout Telefunken Black Diamond Series Vacuum Tubes\u003c\/p\u003e\n\n\u003cp\u003eTelefunken vacuum tubes have been the benchmark of excellence in all audio applications, both productions and reproduction, for many decades. Today, this rich history continues with the introduction of new production tubes from Telefunken Elektroakustik, in partnership with JJ tubes from the Carpathian mountains of Cadca in Slovakia.\u003c\/p\u003e\n\n\u003cp\u003eEach tube is meticulously measured for all critical parameters of performance including transconductance, gain, noise, and microphonics. All Telefunken branded tubes are hand picked to be the best examples of Eastern European construction in the proud tradition with which the name Telefunken Elektroakustik has become synonymous.\u003c\/p\u003e\n\n\u003cp\u003eIn addition to the rigorous testing procedure, all new production Telefunken tubes are cryogenically treated to ensure durability, and subjected to an extended burn-in period to ensure superior stability. The tubes are re-measured subsequent to burn-in, and again before final packaging, in order to guarantee that only the best, lowest noise tubes are offered.\u003c\/p\u003e\n\n\u003cp\u003eDisclaimer\u003c\/p\u003e\n\n\u003cp\u003eNeither SX Pro or TELEFUNKEN Elektroakustik will be held responsible (financially or otherwise) for equipment that is damaged from the use of tubes purchased from us. Each tube has been fully tested to ensure reliability and is guaranteed to perform as described. It is the responsibility of the customer to consult with the equipment manufacturer (or qualified technician) for the selection of proper tubes and proper installation and biasing procedures.\u003c\/p\u003e","brand":"Telefunken Elektroakustik","offers":[{"title":"Default Title","offer_id":57959722942847,"sku":"9781","price":330.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1008\/1216\/1407\/files\/9781-1.jpg?v=1783943303"},{"product_id":"telefunken-valve-ecc82-tk-12au7-vacuum-tube-matched-quad","title":"Telefunken Valve ECC82-TK (12AU7) Vacuum Tube (Matched Quad)","description":"\u003cp\u003eThe TELEFUNKEN Elektroakustik ECC82-TK is a newly manufactured and cryogenically treated rendition of the classic ECC82, commonly known by the American designation 12AU7. The ECC82 is a dual triode vacuum tube with medium gain and low noise characteristics, making it ideal for hi-fi audio equipment and instrument amplification. It is commonly used as a low-noise line amplifier, driver, and phase inverter in push-pull amplifier circuits, and can replace an ECC81\/12AX7 for lower gain applications.\u003c\/p\u003e\n\n\u003cp\u003eThe Black Diamond Series ECC82-TK features gold-plated pins and a gold-plated internal grid. The ECC82-TK is often considered more of a brighter tonal character rather than warm, and is characterized by its wide sense of dynamics and exceptionally quiet noise floor. It offers an accurate and focused image with a flat midrange and tight low end. The ECC82-TK is excellent in headphone amplifiers and high-end home audio and phono equipment, among many other applications. The Black Diamond Series ECC82-TK undergoes rigorous quality control and testing to deliver a dependable tube for the most demanding applications.\u003c\/p\u003e\n\n\u003cp\u003eClick here for the ECC82-TK Data sheet.\u003c\/p\u003e\n\n\u003cp\u003eAbout Telefunken Black Diamond Series Vacuum Tubes\u003c\/p\u003e\n\n\u003cp\u003eTelefunken vacuum tubes have been the benchmark of excellence in all audio applications, both productions and reproduction, for many decades. Today, this rich history continues with the introduction of new production tubes from Telefunken Elektroakustik, in partnership with JJ tubes from the Carpathian mountains of Cadca in Slovakia.\u003c\/p\u003e\n\n\u003cp\u003eEach tube is meticulously measured for all critical parameters of performance including transconductance, gain, noise, and microphonics. All Telefunken branded tubes are hand picked to be the best examples of Eastern European construction in the proud tradition with which the name Telefunken Elektroakustik has become synonymous.\u003c\/p\u003e\n\n\u003cp\u003eIn addition to the rigorous testing procedure, all new production Telefunken tubes are cryogenically treated to ensure durability, and subjected to an extended burn-in period to ensure superior stability. The tubes are re-measured subsequent to burn-in, and again before final packaging, in order to guarantee that only the best, lowest noise tubes are offered.\u003c\/p\u003e\n\n\u003cp\u003eDisclaimer\u003c\/p\u003e\n\n\u003cp\u003eNeither SX Pro or TELEFUNKEN Elektroakustik will be held responsible (financially or otherwise) for equipment that is damaged from the use of tubes purchased from us. Each tube has been fully tested to ensure reliability and is guaranteed to perform as described. It is the responsibility of the customer to consult with the equipment manufacturer (or qualified technician) for the selection of proper tubes and proper installation and biasing procedures.\u003c\/p\u003e","brand":"Telefunken Elektroakustik","offers":[{"title":"Default Title","offer_id":57959723008383,"sku":"9780","price":310.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1008\/1216\/1407\/files\/9780-1.jpg?v=1783943305"},{"product_id":"telefunken-valve-ecc82-tk-12au7-vacuum-tube-balanced-matched-pair","title":"Telefunken Valve ECC82-TK (12AU7) Vacuum Tube (Balanced, Matched Pair)","description":"\u003cp\u003eThe TELEFUNKEN Elektroakustik ECC82-TK is a newly manufactured and cryogenically treated rendition of the classic ECC82, commonly known by the American designation 12AU7. The ECC82 is a dual triode vacuum tube with medium gain and low noise characteristics, making it ideal for hi-fi audio equipment and instrument amplification. It is commonly used as a low-noise line amplifier, driver, and phase inverter in push-pull amplifier circuits, and can replace an ECC81\/12AX7 for lower gain applications.\u003c\/p\u003e\n\n\u003cp\u003eThe Black Diamond Series ECC82-TK features gold-plated pins and a gold-plated internal grid. The ECC82-TK is often considered more of a brighter tonal character rather than warm, and is characterized by its wide sense of dynamics and exceptionally quiet noise floor. It offers an accurate and focused image with a flat midrange and tight low end. The ECC82-TK is excellent in headphone amplifiers and high-end home audio and phono equipment, among many other applications. The Black Diamond Series ECC82-TK undergoes rigorous quality control and testing to deliver a dependable tube for the most demanding applications.\u003c\/p\u003e\n\n\u003cp\u003eClick here for the ECC82-TK Data sheet.\u003c\/p\u003e\n\n\u003cp\u003eAbout Telefunken Black Diamond Series Vacuum Tubes\u003c\/p\u003e\n\n\u003cp\u003eTelefunken vacuum tubes have been the benchmark of excellence in all audio applications, both productions and reproduction, for many decades. Today, this rich history continues with the introduction of new production tubes from Telefunken Elektroakustik, in partnership with JJ tubes from the Carpathian mountains of Cadca in Slovakia.\u003c\/p\u003e\n\n\u003cp\u003eEach tube is meticulously measured for all critical parameters of performance including transconductance, gain, noise, and microphonics. All Telefunken branded tubes are hand picked to be the best examples of Eastern European construction in the proud tradition with which the name Telefunken Elektroakustik has become synonymous.\u003c\/p\u003e\n\n\u003cp\u003eIn addition to the rigorous testing procedure, all new production Telefunken tubes are cryogenically treated to ensure durability, and subjected to an extended burn-in period to ensure superior stability. The tubes are re-measured subsequent to burn-in, and again before final packaging, in order to guarantee that only the best, lowest noise tubes are offered.\u003c\/p\u003e\n\n\u003cp\u003eDisclaimer\u003c\/p\u003e\n\n\u003cp\u003eNeither SX Pro or TELEFUNKEN Elektroakustik will be held responsible (financially or otherwise) for equipment that is damaged from the use of tubes purchased from us. Each tube has been fully tested to ensure reliability and is guaranteed to perform as described. It is the responsibility of the customer to consult with the equipment manufacturer (or qualified technician) for the selection of proper tubes and proper installation and biasing procedures.\u003c\/p\u003e","brand":"Telefunken Elektroakustik","offers":[{"title":"Default Title","offer_id":57959723106687,"sku":"9779","price":165.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1008\/1216\/1407\/files\/9779-1.jpg?v=1783943300"},{"product_id":"telefunken-valve-ecc82-tk-12au7-vacuum-tube-matched-pair","title":"Telefunken Valve ECC82-TK (12AU7) Vacuum Tube (Matched Pair)","description":"\u003cp\u003eThe TELEFUNKEN Elektroakustik ECC82-TK is a newly manufactured and cryogenically treated rendition of the classic ECC82, commonly known by the American designation 12AU7. The ECC82 is a dual triode vacuum tube with medium gain and low noise characteristics, making it ideal for hi-fi audio equipment and instrument amplification. It is commonly used as a low-noise line amplifier, driver, and phase inverter in push-pull amplifier circuits, and can replace an ECC81\/12AX7 for lower gain applications.\u003c\/p\u003e\n\n\u003cp\u003eThe Black Diamond Series ECC82-TK features gold-plated pins and a gold-plated internal grid. The ECC82-TK is often considered more of a brighter tonal character rather than warm, and is characterized by its wide sense of dynamics and exceptionally quiet noise floor. It offers an accurate and focused image with a flat midrange and tight low end. The ECC82-TK is excellent in headphone amplifiers and high-end home audio and phono equipment, among many other applications. The Black Diamond Series ECC82-TK undergoes rigorous quality control and testing to deliver a dependable tube for the most demanding applications.\u003c\/p\u003e\n\n\u003cp\u003eClick here for the ECC82-TK Data sheet.\u003c\/p\u003e\n\n\u003cp\u003eAbout Telefunken Black Diamond Series Vacuum Tubes\u003c\/p\u003e\n\n\u003cp\u003eTelefunken vacuum tubes have been the benchmark of excellence in all audio applications, both productions and reproduction, for many decades. Today, this rich history continues with the introduction of new production tubes from Telefunken Elektroakustik, in partnership with JJ tubes from the Carpathian mountains of Cadca in Slovakia.\u003c\/p\u003e\n\n\u003cp\u003eEach tube is meticulously measured for all critical parameters of performance including transconductance, gain, noise, and microphonics. All Telefunken branded tubes are hand picked to be the best examples of Eastern European construction in the proud tradition with which the name Telefunken Elektroakustik has become synonymous.\u003c\/p\u003e\n\n\u003cp\u003eIn addition to the rigorous testing procedure, all new production Telefunken tubes are cryogenically treated to ensure durability, and subjected to an extended burn-in period to ensure superior stability. The tubes are re-measured subsequent to burn-in, and again before final packaging, in order to guarantee that only the best, lowest noise tubes are offered.\u003c\/p\u003e\n\n\u003cp\u003eDisclaimer\u003c\/p\u003e\n\n\u003cp\u003eNeither SX Pro or TELEFUNKEN Elektroakustik will be held responsible (financially or otherwise) for equipment that is damaged from the use of tubes purchased from us. Each tube has been fully tested to ensure reliability and is guaranteed to perform as described. It is the responsibility of the customer to consult with the equipment manufacturer (or qualified technician) for the selection of proper tubes and proper installation and biasing procedures.\u003c\/p\u003e","brand":"Telefunken Elektroakustik","offers":[{"title":"Default Title","offer_id":57959723172223,"sku":"9778","price":155.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1008\/1216\/1407\/files\/9778-1.jpg?v=1783943301"},{"product_id":"telefunken-valve-ecc82-tk-12au7-vacuum-tube-balanced","title":"Telefunken Valve ECC82-TK (12AU7) Vacuum Tube (Balanced)","description":"\u003cp\u003eThe TELEFUNKEN Elektroakustik ECC82-TK is a newly manufactured and cryogenically treated rendition of the classic ECC82, commonly known by the American designation 12AU7. The ECC82 is a dual triode vacuum tube with medium gain and low noise characteristics, making it ideal for hi-fi audio equipment and instrument amplification. It is commonly used as a low-noise line amplifier, driver, and phase inverter in push-pull amplifier circuits, and can replace an ECC81\/12AX7 for lower gain applications.\u003c\/p\u003e\n\n\u003cp\u003eThe Black Diamond Series ECC82-TK features gold-plated pins and a gold-plated internal grid. The ECC82-TK is often considered more of a brighter tonal character rather than warm, and is characterized by its wide sense of dynamics and exceptionally quiet noise floor. It offers an accurate and focused image with a flat midrange and tight low end. The ECC82-TK is excellent in headphone amplifiers and high-end home audio and phono equipment, among many other applications. The Black Diamond Series ECC82-TK undergoes rigorous quality control and testing to deliver a dependable tube for the most demanding applications.\u003c\/p\u003e\n\n\u003cp\u003eClick here for the ECC82-TK Data sheet.\u003c\/p\u003e\n\n\u003cp\u003eAbout Telefunken Black Diamond Series Vacuum Tubes\u003c\/p\u003e\n\n\u003cp\u003eTelefunken vacuum tubes have been the benchmark of excellence in all audio applications, both productions and reproduction, for many decades. Today, this rich history continues with the introduction of new production tubes from Telefunken Elektroakustik, in partnership with JJ tubes from the Carpathian mountains of Cadca in Slovakia.\u003c\/p\u003e\n\n\u003cp\u003eEach tube is meticulously measured for all critical parameters of performance including transconductance, gain, noise, and microphonics. All Telefunken branded tubes are hand picked to be the best examples of Eastern European construction in the proud tradition with which the name Telefunken Elektroakustik has become synonymous.\u003c\/p\u003e\n\n\u003cp\u003eIn addition to the rigorous testing procedure, all new production Telefunken tubes are cryogenically treated to ensure durability, and subjected to an extended burn-in period to ensure superior stability. The tubes are re-measured subsequent to burn-in, and again before final packaging, in order to guarantee that only the best, lowest noise tubes are offered.\u003c\/p\u003e\n\n\u003cp\u003eDisclaimer\u003c\/p\u003e\n\n\u003cp\u003eNeither SX Pro or TELEFUNKEN Elektroakustik will be held responsible (financially or otherwise) for equipment that is damaged from the use of tubes purchased from us. Each tube has been fully tested to ensure reliability and is guaranteed to perform as described. It is the responsibility of the customer to consult with the equipment manufacturer (or qualified technician) for the selection of proper tubes and proper installation and biasing procedures.\u003c\/p\u003e","brand":"Telefunken Elektroakustik","offers":[{"title":"Default Title","offer_id":57959723237759,"sku":"9777","price":80.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1008\/1216\/1407\/files\/9777-1.jpg?v=1783943301"},{"product_id":"telefunken-valve-ge-5654w-vacuum-tube","title":"Telefunken Valve GE 5654W Vacuum Tube","description":"\u003cp\u003eGE 5654W vacuum tube for use in CU-29, TF29 or TF39 Copperhead microphones\u003c\/p\u003e\n\n\u003cp\u003eThe General Electric 5654W is an excellent replacement tube for the CU-29, TF29 or TF39 Copperhead microphones. Also known as the EF95 or 6AK5W, these tubes have been tested for low self noise and low microphonics. New Old Stock, made in the USA.\u003c\/p\u003e","brand":"Telefunken Elektroakustik","offers":[{"title":"Default Title","offer_id":57959731003775,"sku":"9567","price":30.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1008\/1216\/1407\/files\/9567-1.jpg?v=1783943260"},{"product_id":"telefunken-valve-phillips-raytheon-5840w-vacuum-tube","title":"Telefunken Valve Phillips Raytheon 5840W Vacuum Tube","description":"\u003cp\u003e5840W vacuum tube for the TELEFUNKEN AK-47 MkII and ELA M 260 microphones\u003c\/p\u003e\n\n\u003cp\u003eManufactured in the USA, these high-quality sub-miniature pentode tubes are well known for their extremely low noise and low microphonics. These tubes are often utilized in Class A\/B and Class A Design circuits, offering a balanced and rich tone. The 5840W, also known as the EF732, is featured in TELEFUNKEN Elektroakustik’s AK-47 MkII and ELA M 260 microphones. A PCB-mounted version is also available for direct replacement in the TF47.\u003c\/p\u003e\n\n\u003cp\u003e*Soldering is required to install this tube in the AK-47 MkII and ELA M 260. Contact us if you would like us to install your tube.\u003c\/p\u003e","brand":"Telefunken Elektroakustik","offers":[{"title":"Default Title","offer_id":57959731167615,"sku":"9566","price":40.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1008\/1216\/1407\/files\/9566-1.jpg?v=1783943259"},{"product_id":"telefunken-valve-6072a-balanced-vacuum-tube","title":"Telefunken Valve 6072A Balanced Vacuum Tube","description":"\u003cp\u003e6072A Balanced vacuum tube for use in the Telefunken AR-70 microphone. Tested, Burned-In and screened by TELEFUNKEN Elektroakustik.\u003c\/p\u003e","brand":"Telefunken Elektroakustik","offers":[{"title":"Default Title","offer_id":57959731265919,"sku":"9565","price":99.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1008\/1216\/1407\/files\/9565-1.jpg?v=1783943261"},{"product_id":"telefunken-vf14k-vacuum-tube","title":"Telefunken VF14K Vacuum Tube","description":"\u003cp\u003eVF14K Vacuum Tube for use in the TELEFUNKEN or NEUMANN U47 or U48 microphones. The VF14K is a drop-in (no modification necessary) replacement for the original VF14M \/ VF14.\u003c\/p\u003e","brand":"Telefunken Elektroakustik","offers":[{"title":"Default Title","offer_id":57959731331455,"sku":"9564","price":750.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1008\/1216\/1407\/files\/9564-1.jpg?v=1783943259"},{"product_id":"telefunken-valve-phillips-raytheon-5840w-vacuum-tube-with-pcb-mount","title":"Telefunken Valve Phillips Raytheon 5840W Vacuum Tube with PCB Mount","description":"\u003cp\u003e5840W vacuum tube for the TELEFUNKEN TF47 microphone. PCB-mounted for direct plug-in replacement.\u003c\/p\u003e","brand":"Telefunken Elektroakustik","offers":[{"title":"Default Title","offer_id":57959731429759,"sku":"9563","price":50.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1008\/1216\/1407\/files\/9563-1.jpg?v=1783943260"},{"product_id":"telefunken-valve-6072a-vacuum-tube","title":"Telefunken Valve 6072A Vacuum Tube","description":"\u003cp\u003e6072A vacuum tube for use in Telefunken TF51 and AR-51 microphones. Tested, Burned-In and screened by TELEFUNKEN Elektroakustik.\u003c\/p\u003e","brand":"Telefunken Elektroakustik","offers":[{"title":"Default Title","offer_id":57959731528063,"sku":"9562","price":90.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1008\/1216\/1407\/files\/9562-1.jpg?v=1783943259"},{"product_id":"telefunken-valve-6072a-premium-vacuum-tube","title":"Telefunken Valve 6072A PREMIUM Vacuum Tube","description":"\u003cp\u003ePremium 6072A vacuum tube for use in Telefunken ELA M 251E, and C12 microphones. Tested, Burned-In and screened by TELEFUNKEN Elektroakustik.\u003c\/p\u003e","brand":"Telefunken Elektroakustik","offers":[{"title":"Default Title","offer_id":57959731626367,"sku":"9561","price":90.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1008\/1216\/1407\/files\/9561-1.jpg?v=1783943260"},{"product_id":"telefunken-valve-gz34-tk-vacuum-tube","title":"Telefunken Valve GZ34-TK Vacuum Tube","description":"\u003cp\u003eThe TELEFUNKEN GZ34-TK is an excellent replacement for any amplifier using GZ34 or 5AR4 rectifier tubes.\u003c\/p\u003e\n\n\u003cp\u003eThe GZ34 isn’t a very talked about tube, but it is one of the most common rectifier tubes found in audio, especially in guitar amps. Rectifier tubes were some of the very first tubes to be invented since their purpose is one of the first requirements in electronic and audio design.\u003c\/p\u003e\n\n\u003cp\u003eA rectifier is an electronic device that converts alternating current (AC), which periodically reverses direction, to direct current (DC), which flows in only one direction. The rectifier is indeed an essential block that helps create the sound of an amplifier.\u003c\/p\u003e\n\n\u003cp\u003eAbout Telefunken Black Diamond Series Vacuum Tubes\u003c\/p\u003e\n\n\u003cp\u003eTelefunken vacuum tubes have been the benchmark of excellence in all audio applications, both productions and reproduction, for many decades. Today, this rich history continues with the introduction of new production tubes from Telefunken Elektroakustik, in partnership with JJ tubes from the Carpathian mountains of Cadca in Slovakia.\u003c\/p\u003e\n\n\u003cp\u003eEach tube is meticulously measured for all critical parameters of performance including transconductance, gain, noise, and microphonics. All Telefunken branded tubes are hand picked to be the best examples of Eastern European construction in the proud tradition with which the name Telefunken Elektroakustik has become synonymous.\u003c\/p\u003e\n\n\u003cp\u003eIn addition to the rigorous testing procedure, all new production Telefunken tubes are cryogenically treated to ensure durability, and subjected to an extended burn-in period to ensure superior stability. The tubes are re-measured subsequent to burn-in, and again before final packaging, in order to guarantee that only the best, lowest noise tubes are offered.\u003c\/p\u003e\n\n\u003cp\u003eDisclaimer\u003c\/p\u003e\n\n\u003cp\u003eNeither SX Pro or TELEFUNKEN Elektroakustik will be held responsible (financially or otherwise) for equipment that is damaged from the use of tubes purchased from us. Each tube has been fully tested to ensure reliability and is guaranteed to perform as described. It is the responsibility of the customer to consult with the equipment manufacturer (or qualified technician) for the selection of proper tubes and proper installation and biasing procedures.\u003c\/p\u003e","brand":"Telefunken Elektroakustik","offers":[{"title":"Default Title","offer_id":57959731724671,"sku":"9560","price":44.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1008\/1216\/1407\/files\/9560-1.jpg?v=1783943262"},{"product_id":"telefunken-valve-kt88-tk-vacuum-tube","title":"Telefunken Valve KT88-TK Vacuum Tube","description":"\u003cp\u003eThe TELEFUNKEN Elektroakustik KT88-TK is a newly manufactured and cryogenically treated version of the legendary KT88. The KT88-TK is a beam-power tetrode that shares similar applications as the 6L6 and EL34, and is one of the largest tubes in its class. Originally introduced by GEC in 1956, it became competition for the American-made 6550, but with the ability to handle a much higher plate voltage of up to 800 V, the KT88 became a common choice for power amplification design.\u003c\/p\u003e\n\n\u003cp\u003eIts characteristics of high power and low distortion make it ideal for guitar amplifier applications where the user is seeking a higher gain tone with less distortion than a 6550 will provide. Tonally, the Black Diamond Series KT88-TK has the same characteristic mid-range of the original KT88 manufactured by MOV (Marconi-Osram Valve), with an expanded low end and very high end. The rigorous quality control and durable construction yields a dependable tube ready for the most demanding applications.\u003c\/p\u003e\n\n\u003cp\u003eClick here for the KT88-TK Data sheet.\u003c\/p\u003e\n\n\u003cp\u003eAbout Telefunken Black Diamond Series Vacuum Tubes\u003c\/p\u003e\n\n\u003cp\u003eTelefunken vacuum tubes have been the benchmark of excellence in all audio applications, both productions and reproduction, for many decades. Today, this rich history continues with the introduction of new production tubes from Telefunken Elektroakustik, in partnership with JJ tubes from the Carpathian mountains of Cadca in Slovakia.\u003c\/p\u003e\n\n\u003cp\u003eEach tube is meticulously measured for all critical parameters of performance including transconductance, gain, noise, and microphonics. All Telefunken branded tubes are hand picked to be the best examples of Eastern European construction in the proud tradition with which the name Telefunken Elektroakustik has become synonymous.\u003c\/p\u003e\n\n\u003cp\u003eIn addition to the rigorous testing procedure, all new production Telefunken tubes are cryogenically treated to ensure durability, and subjected to an extended burn-in period to ensure superior stability. The tubes are re-measured subsequent to burn-in, and again before final packaging, in order to guarantee that only the best, lowest noise tubes are offered.\u003c\/p\u003e\n\n\u003cp\u003eDisclaimer\u003c\/p\u003e\n\n\u003cp\u003eNeither SX Pro or TELEFUNKEN Elektroakustik will be held responsible (financially or otherwise) for equipment that is damaged from the use of tubes purchased from us. Each tube has been fully tested to ensure reliability and is guaranteed to perform as described. It is the responsibility of the customer to consult with the equipment manufacturer (or qualified technician) for the selection of proper tubes and proper installation and biasing procedures.\u003c\/p\u003e","brand":"Telefunken Elektroakustik","offers":[{"title":"Default Title","offer_id":57959731855743,"sku":"9559","price":110.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1008\/1216\/1407\/files\/9559-1.jpg?v=1783943263"},{"product_id":"telefunken-valve-6550-tk-vacuum-tube","title":"Telefunken Valve 6550-TK Vacuum Tube","description":"\u003cp\u003eThe TELEFUNKEN 6550-TK is a high output power tube suitable for use in guitar amplifiers and Leslie speaker systems. Ideal for use in classic Marshall, Fender and Ampeg tube circuits, the 6550-TK offers outstanding performance and stability.\u003c\/p\u003e\n\n\u003cp\u003eTung-Sol developed the 6550 in 1955 for use as a servo amplifier and in industrial applications. The design is based on the 6L6, but with more gain and better stability.\u003c\/p\u003e\n\n\u003cp\u003eLike the 6L6, the 6550 is a beam power tube design (or power tetrode) that can painlessly deliver 35 watts at its output.\u003c\/p\u003e\n\n\u003cp\u003eAny bass player with an Ampeg SVT knows the beauty of the 6550 sound, as well as the raw power they can deliver. One of the best features of the 6550 is the tube’s long life characteristic, which will grant the user fewer tube changes over the years.\u003c\/p\u003e\n\n\u003cp\u003eClick here for the 6550-TK Data sheet.\u003c\/p\u003e\n\n\u003cp\u003eAbout Telefunken Black Diamond Series Vacuum Tubes\u003c\/p\u003e\n\n\u003cp\u003eTelefunken vacuum tubes have been the benchmark of excellence in all audio applications, both productions and reproduction, for many decades. Today, this rich history continues with the introduction of new production tubes from Telefunken Elektroakustik, in partnership with JJ tubes from the Carpathian mountains of Cadca in Slovakia.\u003c\/p\u003e\n\n\u003cp\u003eEach tube is meticulously measured for all critical parameters of performance including transconductance, gain, noise, and microphonics. All Telefunken branded tubes are hand picked to be the best examples of Eastern European construction in the proud tradition with which the name Telefunken Elektroakustik has become synonymous.\u003c\/p\u003e\n\n\u003cp\u003eIn addition to the rigorous testing procedure, all new production Telefunken tubes are cryogenically treated to ensure durability, and subjected to an extended burn-in period to ensure superior stability. The tubes are re-measured subsequent to burn-in, and again before final packaging, in order to guarantee that only the best, lowest noise tubes are offered.\u003c\/p\u003e\n\n\u003cp\u003eDisclaimer\u003c\/p\u003e\n\n\u003cp\u003eNeither SX Pro or TELEFUNKEN Elektroakustik will be held responsible (financially or otherwise) for equipment that is damaged from the use of tubes purchased from us. Each tube has been fully tested to ensure reliability and is guaranteed to perform as described. It is the responsibility of the customer to consult with the equipment manufacturer (or qualified technician) for the selection of proper tubes and proper installation and biasing procedures.\u003c\/p\u003e","brand":"Telefunken Elektroakustik","offers":[{"title":"Default Title","offer_id":57959731954047,"sku":"9558","price":100.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1008\/1216\/1407\/files\/9558-1.jpg?v=1783943263"},{"product_id":"telefunken-valve-6l6gc-tk-vacuum-tube","title":"Telefunken Valve 6L6GC-TK Vacuum Tube","description":"\u003cp\u003eThe TELEFUNKEN 6L6GC-TK has tight and defined lows, transparent mids and a shimmering high end. When installed into your amplifier, these octal power tubes offer a focused bite with well-defined articulation.\u003c\/p\u003e\n\n\u003cp\u003eThe 6L6 was developed by RCA in 1936 as the first power tetrode, an alternative to the high output pentode designs already under patent by Philips. The modern version, the 6L6GC, dominates the guitar amplifier market no different than the earlier versions that have been found in Fender amplifiers since the 1940’s.\u003c\/p\u003e\n\n\u003cp\u003eThe 6L6 is most associated with American sounding amplifiers. In comparison to the EL34 and EL84, the 6L6 tends to not break up as quickly. With it’s top-end sparkle and clean headroom, their is a reason the 6L6 has had one of the longest active lifetimes of any electronic component.\u003c\/p\u003e\n\n\u003cp\u003eClick here for the 6L6GC-TK Data sheet.\u003c\/p\u003e\n\n\u003cp\u003eAbout Telefunken Black Diamond Series Vacuum Tubes\u003c\/p\u003e\n\n\u003cp\u003eTelefunken vacuum tubes have been the benchmark of excellence in all audio applications, both productions and reproduction, for many decades. Today, this rich history continues with the introduction of new production tubes from Telefunken Elektroakustik, in partnership with JJ tubes from the Carpathian mountains of Cadca in Slovakia.\u003c\/p\u003e\n\n\u003cp\u003eEach tube is meticulously measured for all critical parameters of performance including transconductance, gain, noise, and microphonics. All Telefunken branded tubes are hand picked to be the best examples of Eastern European construction in the proud tradition with which the name Telefunken Elektroakustik has become synonymous.\u003c\/p\u003e\n\n\u003cp\u003eIn addition to the rigorous testing procedure, all new production Telefunken tubes are cryogenically treated to ensure durability, and subjected to an extended burn-in period to ensure superior stability. The tubes are re-measured subsequent to burn-in, and again before final packaging, in order to guarantee that only the best, lowest noise tubes are offered.\u003c\/p\u003e\n\n\u003cp\u003eDisclaimer\u003c\/p\u003e\n\n\u003cp\u003eNeither SX Pro or TELEFUNKEN Elektroakustik will be held responsible (financially or otherwise) for equipment that is damaged from the use of tubes purchased from us. Each tube has been fully tested to ensure reliability and is guaranteed to perform as described. It is the responsibility of the customer to consult with the equipment manufacturer (or qualified technician) for the selection of proper tubes and proper installation and biasing procedures.\u003c\/p\u003e","brand":"Telefunken Elektroakustik","offers":[{"title":"Default Title","offer_id":57959732052351,"sku":"9557","price":72.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1008\/1216\/1407\/files\/9557-1.jpg?v=1783943263"},{"product_id":"telefunken-valve-6v6-tk-vacuum-tube","title":"Telefunken Valve 6V6-TK Vacuum Tube","description":"\u003cp\u003eThe TELEFUNKEN Elektroakustik 6V6-TK is newly manufactured and cryogenically treated rendition of the legendary 6V6. Originally released in 1937 by RCA, the 6V6 is a beam-power tetrode vacuum tube ideal for use in hi-fi audio equipment and music instrument amplifiers. The 6V6 has been used in popular guitar amplifiers such as the Fender Champ, Princeton Reverb, and Deluxe Reverb for decades, and the Black Diamond Series 6V6-TK is a perfect replacement for keeping the same performance and tone as the originals.\u003c\/p\u003e\n\n\u003cp\u003eClick here for the 6V6-TK Data sheet.\u003c\/p\u003e\n\n\u003cp\u003eAbout Telefunken Black Diamond Series Vacuum Tubes\u003c\/p\u003e\n\n\u003cp\u003eTelefunken vacuum tubes have been the benchmark of excellence in all audio applications, both productions and reproduction, for many decades. Today, this rich history continues with the introduction of new production tubes from Telefunken Elektroakustik, in partnership with JJ tubes from the Carpathian mountains of Cadca in Slovakia.\u003c\/p\u003e\n\n\u003cp\u003eEach tube is meticulously measured for all critical parameters of performance including transconductance, gain, noise, and microphonics. All Telefunken branded tubes are hand picked to be the best examples of Eastern European construction in the proud tradition with which the name Telefunken Elektroakustik has become synonymous.\u003c\/p\u003e\n\n\u003cp\u003eIn addition to the rigorous testing procedure, all new production Telefunken tubes are cryogenically treated to ensure durability, and subjected to an extended burn-in period to ensure superior stability. The tubes are re-measured subsequent to burn-in, and again before final packaging, in order to guarantee that only the best, lowest noise tubes are offered.\u003c\/p\u003e\n\n\u003cp\u003eDisclaimer\u003c\/p\u003e\n\n\u003cp\u003eNeither SX Pro or TELEFUNKEN Elektroakustik will be held responsible (financially or otherwise) for equipment that is damaged from the use of tubes purchased from us. Each tube has been fully tested to ensure reliability and is guaranteed to perform as described. It is the responsibility of the customer to consult with the equipment manufacturer (or qualified technician) for the selection of proper tubes and proper installation and biasing procedures.\u003c\/p\u003e","brand":"Telefunken Elektroakustik","offers":[{"title":"Default Title","offer_id":57959732150655,"sku":"9556","price":55.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1008\/1216\/1407\/files\/9556-1.jpg?v=1783943262"},{"product_id":"telefunken-valve-el84-tk-vacuum-tube","title":"Telefunken Valve EL84-TK Vacuum Tube","description":"\u003cp\u003eThe TELEFUNKEN EL84-TK is a perfect replacement for any EL84 \/ 6BQ5 tube offering a reliable and great sound. It is a thermionic valve of the power pentode type.\u003c\/p\u003e\n\n\u003cp\u003eOriginally designed for the output stages of audio frequency amplifiers, the EL84 can deliver up to 17 watts. Although it is physically smaller than most common output tubes, this pentode tube can really deliver. In many ways it is similar to the EL34 but without the output “horse power”.\u003c\/p\u003e\n\n\u003cp\u003eThe EL84, like its EL34 cousin, are found in many British amplifiers, particularly those from VOX. When overdriven, the EL84 power tubes in these amplifiers produce a distinctive chiming and articulate sound when compared to 6L6 tubes more commonly used in American amplifiers.\u003c\/p\u003e\n\n\u003cp\u003eClick here for the EL84-TK Data sheet.\u003c\/p\u003e\n\n\u003cp\u003eAbout Telefunken Black Diamond Series Vacuum Tubes\u003c\/p\u003e\n\n\u003cp\u003eTelefunken vacuum tubes have been the benchmark of excellence in all audio applications, both productions and reproduction, for many decades. Today, this rich history continues with the introduction of new production tubes from Telefunken Elektroakustik, in partnership with JJ tubes from the Carpathian mountains of Cadca in Slovakia.\u003c\/p\u003e\n\n\u003cp\u003eEach tube is meticulously measured for all critical parameters of performance including transconductance, gain, noise, and microphonics. All Telefunken branded tubes are hand picked to be the best examples of Eastern European construction in the proud tradition with which the name Telefunken Elektroakustik has become synonymous.\u003c\/p\u003e\n\n\u003cp\u003eIn addition to the rigorous testing procedure, all new production Telefunken tubes are cryogenically treated to ensure durability, and subjected to an extended burn-in period to ensure superior stability. The tubes are re-measured subsequent to burn-in, and again before final packaging, in order to guarantee that only the best, lowest noise tubes are offered.\u003c\/p\u003e\n\n\u003cp\u003eDisclaimer\u003c\/p\u003e\n\n\u003cp\u003eNeither SX Pro or TELEFUNKEN Elektroakustik will be held responsible (financially or otherwise) for equipment that is damaged from the use of tubes purchased from us. Each tube has been fully tested to ensure reliability and is guaranteed to perform as described. It is the responsibility of the customer to consult with the equipment manufacturer (or qualified technician) for the selection of proper tubes and proper installation and biasing procedures.\u003c\/p\u003e","brand":"Telefunken Elektroakustik","offers":[{"title":"Default Title","offer_id":57959732281727,"sku":"9555","price":47.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1008\/1216\/1407\/files\/9555-1.jpg?v=1783943263"},{"product_id":"telefunken-valve-el34-tk-vacuum-tube","title":"Telefunken Valve EL34-TK Vacuum Tube","description":"\u003cp\u003eThe TELEFUNKEN EL34-TK has been designed to handle a slightly higher grid voltage than the traditional EL34. Offering a tight low end and smooth mids, it will bring new life to guitar and hi-fi amplifiers while retaining the historic tone TELEFUNKEN tubes have always been know for.\u003c\/p\u003e\n\n\u003cp\u003eThe EL34 is smaller in diameter and taller than the 6L6 and is capable of a higher plate voltage; factors that help give the EL34 its unique output stage properties. The EL34 is a high output pentode tube as opposed to other output tubes like the 6L6 and the 6550, which are beam tetrode tubes.\u003c\/p\u003e\n\n\u003cp\u003eMullard, which was a subsidiary of Phillips, originally released the EL34 in 1953. EL34’s are most commonly used in pairs in a Class AB1 push-pull configuration. This EL34 is found in many amplifiers that offer the “British tone”, like Marshall and Hi-Watt, where the 6L6 is more commonly found in American made amps like those from Fender and Mesa Boogie.\u003c\/p\u003e\n\n\u003cp\u003eClick here for the EL34-TK Data sheet.\u003c\/p\u003e\n\n\u003cp\u003eAbout Telefunken Black Diamond Series Vacuum Tubes\u003c\/p\u003e\n\n\u003cp\u003eTelefunken vacuum tubes have been the benchmark of excellence in all audio applications, both productions and reproduction, for many decades. Today, this rich history continues with the introduction of new production tubes from Telefunken Elektroakustik, in partnership with JJ tubes from the Carpathian mountains of Cadca in Slovakia.\u003c\/p\u003e\n\n\u003cp\u003eEach tube is meticulously measured for all critical parameters of performance including transconductance, gain, noise, and microphonics. All Telefunken branded tubes are hand picked to be the best examples of Eastern European construction in the proud tradition with which the name Telefunken Elektroakustik has become synonymous.\u003c\/p\u003e\n\n\u003cp\u003eIn addition to the rigorous testing procedure, all new production Telefunken tubes are cryogenically treated to ensure durability, and subjected to an extended burn-in period to ensure superior stability. The tubes are re-measured subsequent to burn-in, and again before final packaging, in order to guarantee that only the best, lowest noise tubes are offered.\u003c\/p\u003e\n\n\u003cp\u003eDisclaimer\u003c\/p\u003e\n\n\u003cp\u003eNeither SX Pro or TELEFUNKEN Elektroakustik will be held responsible (financially or otherwise) for equipment that is damaged from the use of tubes purchased from us. Each tube has been fully tested to ensure reliability and is guaranteed to perform as described. It is the responsibility of the customer to consult with the equipment manufacturer (or qualified technician) for the selection of proper tubes and proper installation and biasing procedures.\u003c\/p\u003e","brand":"Telefunken Elektroakustik","offers":[{"title":"Default Title","offer_id":57959732445567,"sku":"9554","price":65.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1008\/1216\/1407\/files\/9554-1.jpg?v=1783943262"},{"product_id":"telefunken-valve-e88cc-tk-6922-vacuum-tube","title":"Telefunken Valve E88CC-TK (6922) Vacuum Tube","description":"\u003cp\u003eThe newly produced TELEFUNKEN E88CC-TK gold pin tube resurrects the transparent tone and harmonic impact of historical Siemens and TELEFUNKEN tubes. Whether it is installed in a phono stage or microphone preamplifier, this E88CC-TK will breathe new life into all audio equipment offering precise imaging, unmatched dynamics and a large full-bodied soundstage.\u003c\/p\u003e\n\n\u003cp\u003eAlso known as the 6922, the E88CC was originally targeted for test equipment and radar. The E88CC has medium gain, low noise and is a favorite for tight sounding audio input stages. There are some that will argue that the E88CC is the best sounding input tube ever designed.\u003c\/p\u003e\n\n\u003cp\u003eThe E88CC is a dual triode tube like the 12AX7, but has a different pin configuration making it not a direct plug-in replacement. It is most commonly employed in amplifier designs where more clean headroom is desired. The medium gain characteristic of the tube and the low-noise design are part of why this tube sounds as good as it does in microphone preamplifier and phono preamplifier applications.\u003c\/p\u003e\n\n\u003cp\u003eClick here for the E88CC-TK Data sheet.\u003c\/p\u003e\n\n\u003cp\u003eAbout Telefunken Black Diamond Series Vacuum Tubes\u003c\/p\u003e\n\n\u003cp\u003eTelefunken vacuum tubes have been the benchmark of excellence in all audio applications, both productions and reproduction, for many decades. Today, this rich history continues with the introduction of new production tubes from Telefunken Elektroakustik, in partnership with JJ tubes from the Carpathian mountains of Cadca in Slovakia.\u003c\/p\u003e\n\n\u003cp\u003eEach tube is meticulously measured for all critical parameters of performance including transconductance, gain, noise, and microphonics. All Telefunken branded tubes are hand picked to be the best examples of Eastern European construction in the proud tradition with which the name Telefunken Elektroakustik has become synonymous.\u003c\/p\u003e\n\n\u003cp\u003eIn addition to the rigorous testing procedure, all new production Telefunken tubes are cryogenically treated to ensure durability, and subjected to an extended burn-in period to ensure superior stability. The tubes are re-measured subsequent to burn-in, and again before final packaging, in order to guarantee that only the best, lowest noise tubes are offered.\u003c\/p\u003e\n\n\u003cp\u003eDisclaimer\u003c\/p\u003e\n\n\u003cp\u003eNeither SX Pro or TELEFUNKEN Elektroakustik will be held responsible (financially or otherwise) for equipment that is damaged from the use of tubes purchased from us. Each tube has been fully tested to ensure reliability and is guaranteed to perform as described. It is the responsibility of the customer to consult with the equipment manufacturer (or qualified technician) for the selection of proper tubes and proper installation and biasing procedures.\u003c\/p\u003e","brand":"Telefunken Elektroakustik","offers":[{"title":"Default Title","offer_id":57959732511103,"sku":"9553","price":75.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1008\/1216\/1407\/files\/9553-1.jpg?v=1783943262"},{"product_id":"telefunken-valve-ecc83-tk-12ax7-vacuum-tube","title":"Telefunken Valve ECC83-TK (12AX7) Vacuum Tube","description":"\u003cp\u003eThe TELEFUNKEN ECC83-TK is a well-balanced tube suited for all types of music and playing styles. Designed to allow for cleaner headroom than higher gain 12AX7s when pushed into overdrive, it offers distortion with strongly defined lows, a rich mid range and clean, smooth highs.\u003cbr\u003e\nDeveloped by RCA and released in September of 1947, the 12AX7 is a high gain \/ low noise tube that is the most popular tube used in input \/ inter-stage audio amplifiers. The dual triode design makes the 12AX7 compact, relatively inexpensive, and produces a high quality full frequency response.\u003c\/p\u003e\n\n\u003cp\u003e12AX7’s are known for their rich even order harmonic distortion when driven into overdrive. Even order harmonics fit into the western musical scale and are more pleasing to the ear than the harsh odd order harmonic distortion created by transistors. The 12AX7 is also known as the ECC83, which was the European designation found on tubes from Phillips \/ Mullard.\u003c\/p\u003e\n\n\u003cp\u003eAbout Telefunken Black Diamond Series Vacuum Tubes\u003c\/p\u003e\n\n\u003cp\u003eTelefunken vacuum tubes have been the benchmark of excellence in all audio applications, both productions and reproduction, for many decades. Today, this rich history continues with the introduction of new production tubes from Telefunken Elektroakustik, in partnership with JJ tubes from the Carpathian mountains of Cadca in Slovakia.\u003c\/p\u003e\n\n\u003cp\u003eEach tube is meticulously measured for all critical parameters of performance including transconductance, gain, noise, and microphonics. All Telefunken branded tubes are hand picked to be the best examples of Eastern European construction in the proud tradition with which the name Telefunken Elektroakustik has become synonymous.\u003c\/p\u003e\n\n\u003cp\u003eIn addition to the rigorous testing procedure, all new production Telefunken tubes are cryogenically treated to ensure durability, and subjected to an extended burn-in period to ensure superior stability. The tubes are re-measured subsequent to burn-in, and again before final packaging, in order to guarantee that only the best, lowest noise tubes are offered.\u003c\/p\u003e\n\n\u003cp\u003eDisclaimer\u003c\/p\u003e\n\n\u003cp\u003eNeither SX Pro or TELEFUNKEN Elektroakustik will be held responsible (financially or otherwise) for equipment that is damaged from the use of tubes purchased from us. Each tube has been fully tested to ensure reliability and is guaranteed to perform as described. It is the responsibility of the customer to consult with the equipment manufacturer (or qualified technician) for the selection of proper tubes and proper installation and biasing procedures.\u003c\/p\u003e","brand":"Telefunken Elektroakustik","offers":[{"title":"Default Title","offer_id":57959732609407,"sku":"9552","price":75.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1008\/1216\/1407\/files\/9552-1.jpg?v=1783943263"},{"product_id":"telefunken-valve-ecc82-tk-12au7-vacuum-tube","title":"Telefunken Valve ECC82-TK (12AU7) Vacuum Tube","description":"\u003cp\u003eThe TELEFUNKEN Elektroakustik ECC82-TK is a newly manufactured and cryogenically treated rendition of the classic ECC82, commonly known by the American designation 12AU7. The ECC82 is a dual triode vacuum tube with medium gain and low noise characteristics, making it ideal for hi-fi audio equipment and instrument amplification. It is commonly used as a low-noise line amplifier, driver, and phase inverter in push-pull amplifier circuits, and can replace an ECC81\/12AX7 for lower gain applications.\u003c\/p\u003e\n\n\u003cp\u003eThe Black Diamond Series ECC82-TK features gold-plated pins and a gold-plated internal grid. The ECC82-TK is often considered more of a brighter tonal character rather than warm, and is characterized by its wide sense of dynamics and exceptionally quiet noise floor. It offers an accurate and focused image with a flat midrange and tight low end. The ECC82-TK is excellent in headphone amplifiers and high-end home audio and phono equipment, among many other applications. The Black Diamond Series ECC82-TK undergoes rigorous quality control and testing to deliver a dependable tube for the most demanding applications.\u003c\/p\u003e\n\n\u003cp\u003eClick here for the ECC82-TK Data sheet.\u003c\/p\u003e\n\n\u003cp\u003eAbout Telefunken Black Diamond Series Vacuum Tubes\u003c\/p\u003e\n\n\u003cp\u003eTelefunken vacuum tubes have been the benchmark of excellence in all audio applications, both productions and reproduction, for many decades. Today, this rich history continues with the introduction of new production tubes from Telefunken Elektroakustik, in partnership with JJ tubes from the Carpathian mountains of Cadca in Slovakia.\u003c\/p\u003e\n\n\u003cp\u003eEach tube is meticulously measured for all critical parameters of performance including transconductance, gain, noise, and microphonics. All Telefunken branded tubes are hand picked to be the best examples of Eastern European construction in the proud tradition with which the name Telefunken Elektroakustik has become synonymous.\u003c\/p\u003e\n\n\u003cp\u003eIn addition to the rigorous testing procedure, all new production Telefunken tubes are cryogenically treated to ensure durability, and subjected to an extended burn-in period to ensure superior stability. The tubes are re-measured subsequent to burn-in, and again before final packaging, in order to guarantee that only the best, lowest noise tubes are offered.\u003c\/p\u003e\n\n\u003cp\u003eDisclaimer\u003c\/p\u003e\n\n\u003cp\u003eNeither SX Pro or TELEFUNKEN Elektroakustik will be held responsible (financially or otherwise) for equipment that is damaged from the use of tubes purchased from us. Each tube has been fully tested to ensure reliability and is guaranteed to perform as described. It is the responsibility of the customer to consult with the equipment manufacturer (or qualified technician) for the selection of proper tubes and proper installation and biasing procedures.\u003c\/p\u003e","brand":"Telefunken Elektroakustik","offers":[{"title":"Default Title","offer_id":57959732674943,"sku":"9551","price":75.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1008\/1216\/1407\/files\/9551-1.jpg?v=1783943263"}],"url":"https:\/\/sxpro.co.uk\/collections\/studio-essentials-tubes.oembed","provider":"SX Pro","version":"1.0","type":"link"}