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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
Dynaco SCA-35 - integrated tube amplifier
Dynaco SCA-35 - integrated tube amplifier
Price: $700.00
Dynaco SCA-35 - integrated tube amplifier
This Dynaco SCA-35 integrated tube amplifier features extensive audiophile upgrades, including a capacitor board and pair of amplifier boards by D. Gillespie Designs, and a Noble 31 position stepped potentiometer.
Ei KT90 Type II - precision matched
Ei KT90 Type II - precision matched
Price: $109.00
Ei KT90 Type II - precision matched
These early 1990s Type II Ei KT90 power tubes are from one of the last remaining large lots of these hard to find power tubes. Grab a set while supplies last! Price includes testing and precision matching.
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 GZ34 / 5AR4 - metal base
Amperex GZ34 / 5AR4 - metal base
Price: $319.00
Amperex GZ34 / 5AR4 - metal base
This very rare 1955 Amperex GZ34 / 5AR4 rectifier tube has dual D getters, smooth gray plates, and a metal base (rS1 series). The white label has the Admiral logo and says "Made in Holland." Tubes tests as new with balanced diodes.
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.
GE 7581A - matched pair
GE 7581A / 6L6GC - matched pair
Price: $189.00
GE 7581A / 6L6GC - matched pair
The GE 7581A power tubes in this precisely matched pair are premium 6L6GC tubes with a higher power rating. They have gray plates and dual side getters with lots of flashing. Tubes test as new and are matched for current draw (53.2 & 54.9 mA) and Gm.
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.
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.
Sylvania 6SN7WGT - early black plates, matched pair
Sylvania 6SN7WGT - early black plates, matched pair
Price: $184.00
Sylvania 6SN7WGT - early black plates, matched pair
The 1962-63 military spec Sylvania 6SN7WGT tubes in this precisely matched pair have early black plates with 3 rivets and top getters with lots of chrome flashing, Both tubes test as new awith balanced sections and low noise.
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.
Tung-Sol 6V6GTA - matched pair
Tung-Sol 6V6GTA - matched pair
Price: $79.00
Tung-Sol 6V6GTA - matched pair
The 1960 Tung-Sol 6V6GTA power tubes in this precisely matched pair have black plates and halo getters. The white print on the base has the Tung-Sol logo and matching date codes. Both tubes test as new and are matched for both current draw (mA) and 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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