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Amperex Bugle Boy EL34 / 6CA7 - nickel base
Amperex Bugle Boy EL34 / 6CA7 - nickel base
Price: $229.00
Amperex Bugle Boy EL34 / 6CA7 - nickel base
This rare 1956 Amperex Bugle Boy EL34 / 6CA7 power tube is among the earliest EL34 tubes ever made. It has a nickel base with a black bottom and a hole in the centering pin. This tube tests at 84.0 mA current draw and 96% for transconductance (Gm) at 265V
McIntosh MR-80 tuner
McIntosh MR-80 digital FM tuner
Price: $1,190.00
McIntosh MR-80 digital FM tuner
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.
Thomas-CSF 6080WA - black plates
Thomas-CSF 6080WA - black plates
Price: $37.00
Thomas-CSF 6080WA - black plates
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.
GE 6550 / 6550A - crimped plates, matched quad
GE 6550 / 6550A - crimped plates, matched quad
Price: $394.00
GE 6550 / 6550A - crimped plates, matched quad
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!
Amperex Bugle Boy 12AX7 / ECC83 - long plates, D getter
Amperex Bugle Boy 12AX7 / ECC83 - long plates, D getter
Price: $179.00
Amperex Bugle Boy 12AX7 / ECC83 - long plates, D getter
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 as new with phono grade noise levels.
Ei 6DJ8 / ECC88 - A-frame
Ei 6DJ8 / ECC88 - A-frame
Price: From $22.00 to $37.00
Ei 6DJ8 / ECC88 - A-frame
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.
Mullard EL37 / 6L6GC - matched pair
Mullard EL37 / 6L6GC - matched pair
Price: $374.00
Mullard EL37 / 6L6GC - matched pair
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.
Mullard EL84 / 6BQ5 - matched pair
Mullard EL84 / 6BQ5 - matched pair 1
Price: $234.00
Mullard EL84 / 6BQ5 - matched pair 1
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.
Raytheon JAN CRP 6X5WGT rectifier tube
Raytheon JAN CRP 6X5WGT
Price: $32.00
Raytheon JAN CRP 6X5WGT
This military spec 1952 Raytheon 6X5GT has black plates and top D getter. The red print on the brown base has the Raytheon logo and reads "JAN-CRP-6X5WGT."
RCA JAN 6SN7GT / VT-231 - gray glass, matched pair
RCA JAN 6SN7GT / VT-231 - gray glass, matched pair
Price: $294.00
RCA JAN 6SN7GT / VT-231 - gray glass, matched pair
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.
Tung-Sol 6SC7GTY - black glass
Tung-Sol 6SC7GTY - black glass
Price: $54.00
Tung-Sol 6SC7GTY - black glass
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.
RCA 5V4G - ST bottle, matched pair
RCA 5V4G - ST bottle, matched pair
Price: $87.00
RCA 5V4G - ST bottle, matched pair
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.
ElectroHarmonix 6H30Pi - gold pins
ElectroHarmonix 6H30Pi - gold pins
Price: $33.00
ElectroHarmonix 6H30Pi - gold pins
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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