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This solid state McIntosh MR-80 digital FM tuner was used by a recording engineer to assess the quality of his work as presented via radio stations in his area. Click "more info" for details.
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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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The late 1970s GE 6550A power tubes in this premium matched quad have gray plates, 3 getters, metal collar bases and 188-5 factory code (Owensboro, Ky). Tubes test as new and are precisely matched for both mA and Gm. While supplies last!
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This rare 1959 Amperex Bugle Boy 12AX7 / ECC83 tube has long gray plates with copper grid posts and a D getter with foil strip (mC6 series). The Heerlen, Holland factory code is etched in the glass. Tube tests a new with phono grade noise results.
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Price: From $22.00 to $37.00
This Ei 6DJ8 / ECC88 tube was made in pre-war Yugoslavia. It has a dimpled disc getter with A-frame support and silver risers. Click "more info" for current availability.
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The 1962 Mullard EL37 power tubes in this precisely matched pair are 6L6GC type tubes. They have smoked glass, gray plates, and dual bottom getters (R62 series). Both tubes test as new and are matched for both current draw (43.4 mA & 44.2 mA) and Gm.
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The 1960 Mullard EL84 / 6BQ5 tubes in this precisely matched pair have gray plates and large halo getters (rX1 series). The white label has the Mullard shield logo. Both tubes test as new and are matched for both current draw (36.0 & 38.1 mA) and Gm.
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The 1959 Raytheon 12AX7 tubes in this precisely matched pair have black plates and halo getters. The yellow labels on the glass have the Raytheon logo and say "Made in the USA." Both tubes test as new with balanced sections and phono grade sound quality.
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The rare 1940s RCA VT-231 tubes in this precisely matched pair are military spec 6SN7GT type tubes. They have gray glass and staggered black plates with copper grid posts. Both tubes tests as new with balanced sections.
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The 1960s Sylvania 6SN7GTB tubes in this precisely matched quad have gray plates and lots of chrome flashing. The black bases have green print with the Baldwin Organs logo and matching date codes. All four tubes test as new with very low noise.
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This 1956 Tung-Sol 6SC7GT tube has round black plates, black glass, and a bottom getter. The brown base has white print with the Tung-Sol logo. Very hard to find tube! Tube tests as new with balanced sections.
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This 1960s military spec Raytheon 5751 tube is a lower gain 12AX7 type tube. It has black plates and a distinctive dual post getter shaped like a plus sign. Tube tests as new with balanced sections.
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The 1961 military spec RCA 5V4G tubes in this precision matched pair have ST bottles, black plates, and a bottom D getters. The red print on the bases has the RCA logo and reads "JAN CRC-5V4G" with matching date codes (61-30). Both tubes test as new.
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The ElectroHarmonix 6H30Pi tube is a super linear, military spec dual triode tube made in Russia. It has the same internal construction as the Sovtek 6H30Pi, except the EH 6H30Pi has gold pins and has been selected for tighter tolerances and lower noise.
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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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