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Tube Services
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Detailed photos of tubes and parts
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Fast, convenient shipping around the world
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Vintage US and Euro tubes, including guitar tubes and rare triodes
- Find out when your Telefunken tube was made: Telefunken tube date codes
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Repair services
- Vintage audio repair services in Twin Cities Metro area, specializing in tube audio and turntables. Our shop is available by appointment. Contact us.
- Authorized Ortofon, Grado, and Cardas dealer.
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The 1970s GE 6550A power tubes in this precision matched pair have gray plates, 3 getters, metal collar bases, and 188-5 factory code (Owensboro, Ky). Tubes matched for both current draw (52.1 & 54.9 mA) and transconductance (6200 & 6400 Gm).
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This GE 6080 dual triode power tube is a ruggedized 6AS7G tube type. It has black plates, top getters, and a metal collar base. The green print on the glass reads "GE JAN-6080WC." Tube tests as new with low noise.
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This vintage Svetlana "Winged C" 6H13C dual triode power tube is a Russian 6AS7G tube type popular in OTL and headphone amplifiers. It has black plates and dual bottom getters with lots of flashing. Tube tests as new with very low noise.
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The rare 1958-59 Tung-Sol 6550 power tubes in this matched pair have welded black plates with no holes, metal collar bases (some corrosion). One tube has a repaired guide pin. They are matched for both current draw (49.4 & 47.8 mA) and Gm (96% & 93%).
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The 1967 Amperex 6DJ8 / ECC88 tubes in this precisely matched pair were made in Holland (Heerlen factory code) and have halo getters. The orange print has the Amperex globe label. Both tubes test as new and are precisely matched.
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The early 1950s Chelmer Valve ECC35 / 6SL7GT tubes in this precisely matched pair have round black plates and bottom getters. The white print on the glass has the Chelmer Valve logo. Both tubes test as new with balanced sections and very low noise.
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This 1968 GE 6DJ8 / ECC88 tube was made in the USA. It has gray plates and a disc getter with smoked glass. The white print on the glass has the GE logo. Tube tests as new with balanced sections and phono grade noise levels.
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These unusual 1960s Mullard 6SN7GTB tubes have medium bottles with black plates and bottom getters, similar to RCA 6SN7GTB tubes. The white labels on the glass have the IEC International C logo (partial). Both tubes test as new with very low noise.
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This 1965 Mullard EF86 / 6267 tube has silver plates and a halo getter (8Y1 series). The yellow print on the glass has the broadcast quality Mullard 10M logo and the Blackburn code is etched in the glass. Tube tests as new with low noise.
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This 1960s Philips Miniwatt 12AU7 / ECC82 tube has gray plates and a halo getter. They white print has the Philips Miniwatt logo and the Heerlen Holland factory code is etched in the glass. Tube tests as new with with balanced sections and very low noise.
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The 1953 RCA 6L6GC power tubes in this matched pair have have large "coke bottle" envelopes with gray glass and bottom getters. They are matched for current draw (54.8 & 58.4 mA) transconductance (5000 & 5400 Gm).
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The late-1960s RCA 6V6GTA tubes in this precisely matched pair have gray plates and dual O getters. The red print on the bases or glass has the RCA logo (may be partial/missing). Both tubes test as new and are matched for both current draw (mA) and Gm.
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The late 1960s Siemens E83CC tubes in this precisely matched pair are premium quality 12AX7 / ECC83 tubes. They have gray plates and halo getters. Both tubes test as new with phono / V1 grade noise levels.
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Price: From $14.00 to $29.00
This Sovtek 12AX7WXT+ tube has gray plates and triple micas. The black print on the glass has the Sovtek logo and says "Made in Russia." Click "more info" for current availability.
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This rare 1956 Tung-Sol 6SN7GT tube has gray glass with bottom getters. The white print on the base has the Tung-Sol logo. Tube tests as new with balanced sections.
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TC Tubes specializes in precision testing and matching of vintage and new production vacuum tubes for guitar & bass players, audiophiles, and DIY tube audio enthusiasts. Our website features secure payment options and fast, convenient shipping around the world.
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