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What’s new
- BACK IN STOCK
James Audio output transformers are an excellent choice for DIY single-ended tube amplifier projects
- NOW AVAILABLE
The new old stock St. Petersburg 6550B power tube is the predecessor to the new production SED "Winged C" 6550C tube. Same great quality at a great value!
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These vintage Dynaco MKIII monoblock amplifiers feature SDS Labs MK3 cap boards, VTA driver boards, upgraded individual bias, and socket savers. The bias range is flexible enough to run many power tube types. Click "more info" for details.
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The GE 6L6GC power tubes in this premium matched quad have gray plates, dual side getters, black bases, and the 188-5 factory code (Owensboro, Ky). Tubes test as new and are precisely matched for both current draw (mA) and transconductance (Gm).
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This 1980s Svetlana 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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This factory matched pair of 60mA, 10W James Audio JS-6113HS power output transformers is recommended for single-ended tube amplifiers that use 2A3, 45, 71-A, 6V6, and 6BQ5 tube types.
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The 1956 GE 5AS4 rectifier tubes in this precisely matched pair are uprated 5U4GB tube types. They have ST bottles, ribbed black plates, and top D getters. The white print on the bases has the GE logo and matching date codes. Both tubes test as new.
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This 1962-63 Amperex ECC81 / 12AT7 tube has wing style gray plates and a halo getter (Tk2 series). The white print on the glass is labeled for Conn organs and the Radiotechnique France factory code is etched in the glass. Tube tests as new with low noise.
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This 1959 Arcturus 5Y3GT rectifier tube has smooth black plates and a bottom D getter. The white print on the base has the distinctive Arcturus logo (see photo). Tube tests as new with balanced diode sections.
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The 1960s Sylvania 6SN7GTB tubes in this precisely matched quad have black plates and lots of chrome flashing. The black bases have green print with the Sylvania lightening logo and matching date codes. All four tubes test as new with very low noise.
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This 1960s Tung-Sol 6V6GTA has ribbed black plates and top & side getters. The white print on the base has the Tung-Sol label. Tube tests as new.
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The 1967 Mullard ECC88 / 6DJ8 tubes in this precisely matched pair have the yellow 10M Master Series label indicating selection for special quality. They have halo getters and silver risers. Both tubes test as new with phono grade sound quality.
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The 1970s Sylvania 7025 tubes in this precisely matched pair are low noise 12AX7 / ECC83 tube types. They have halo getters and long gray plates with copper grid posts. The yellow print on the glass has the Sylvania logo. Both tubes test as new.
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This very rare Western Electric 205A tube was made in the 1920s. It has the "tennis ball" shaped glass with flashing around the top exhaust tip. The engraved black base has the Western Electric logo. Tube tests as new.
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The very rare 1958 Amperex 7316 tubes in this precisely matched pair are premium quality 12AU7 type tubes (Ct0 series). They have long gray plates and early D getters with foil strips. Both tubes test as new and are precisely matched.
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The Philco 45 triode tubes in this precisely matched pair have ST bottles and engraved bases. Both tubes test as new and are matched for both current draw (26.4 mA & 28.4 mA) and transconductance (Gm).
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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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