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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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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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These new production Genalex Gold Lion KT77 power tubes can directly substitute for 6CA7 or EL34 type tubes. Price includes extended burn-in and precision matching.
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These top of the line RTI Electronics Teflon capacitors measure 10uf +/-10% at 310VDC. This is a one time opportunity to purchase the very best teflon capacitors of this value and rating for tube audio use. While supplies last.
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This military spec 6080WA dual triode power tube was made in France. It has black plates, top O getters, and a metal collar base. The silver print on the glass has the Thomas-CSF logo and reads "6080WA Made in France." Tube tests as new with low noise.
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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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This factory matched pair of 70mA, 10W James Audio JS-6112HS 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 1959 RCA 5692 tubes in this precisely matched pair are an industrial grade 6SN7 tube type--and an audiophile favorite. They have distinctive red bases, triple micas and 11 support rods. Both tubes test as new. Click "more info" for details.
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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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The rare 1959 "fat base" Mullard GZ34 / 5AR4 tubes in this precisely matched pair were made in Great Britain (f31 series). The labels are missing on both tubes, and the Blackburn factory code etching is visible on one tube. Both tubes test as new.
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The 1970s GE 6FQ7 / 6CG7 tubes in this precisely matched pair have halo getters and gray plates with copper grid posts. The orange print on the glass has the Amperex globe logo. Both tubes test as new and are matched for both mA and Gm.
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This 1960s GE 7247 is a high reliability 12DW7 preamp tube. It has ribbed gray plates and a halo getter. The white print on the glass has the GE logo. Tube tests as new with low noise.
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The 1960s RCA 12AY7 tubes in this precisely matched pair have gray plates and halo getters. The red print on the glass has the RCA logo. Both tubes test as new with very low noise. They are matched for both current draw (mA) and transconductance (Gm).
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This 1961 RT EF86 / 6267 tube has mesh plates and a halo getter (8Y5 series). The white print on the glass has the Amperex Bugle Boy label in excellent condition. Tube tests as new with high gain and low noise.
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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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The 1959 Tung-Sol 12AU7A tubes in this precisely matched pair have long gray plates and horseshoe getters. The white print on the glass has the Tung-Sol logo. Both tubes test 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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