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GM70 - copper plate, matched pairs
GM70 - copper plates, matched pair
Price: $200.00
GM70 - copper plates, matched pair
The military spec GM70 tubes in this precisely matched pair have the highly desirable copper plates. Both tubes have the Russian military OTK insignia. Click "more info" for test results.
RCA 845 - matched pair
RCA 845 - matched pair
Price: $2,900.00
RCA 845 - matched pair
The 1964 RCA 845 tubes in this precisely matched pair (2) have gray plates and bottom D getters. The metal bases have the RCA logo and matching date codes (64-39). Click "more info" for test results.
GE 7044 - premium matched pair
GE 7044 - matched pair
Price: $79.00
GE 7044 - matched pair
The GE 7044 tubes in this precisely matched pair have halo getters and gray plates with copper grid posts. The green print on the glass has the GE logo. Both tubes test as new and are matched for both current draw (mA) and Gm.
Mullard 12AT7 / ECC81 - matched pair
Mullard 12AT7 / ECC81 - matched pair
Price: $104.00
Mullard 12AT7 / ECC81 - matched pair
The early 1970s Mullard 12AT7 tubes in this precisely matched pair have gray plates and halo getters (VF3 series). They have the Amperex logo and the Blackburn, UK factory codes are etched in the glass. Both tubes test as new.
Mullard 12AU7 / ECC82 - Bugle Boy label, long plates
Mullard 12AU7 / ECC82 - Bugle Boy label, long plates
Price: $92.00
Mullard 12AU7 / ECC82 - Bugle Boy label, long plates
This rare 1958 Mullard 12AU7 / ECC82 has long plates and an O getter (k61 series). The white print has the famous Bugle Boy logo with treble clef. The Mitcham, UK factory code is etched in the glass. Tube tests as new with balanced sections.
Mullard 12AX7 / ECC83 - matched pair, phono grade
Mullard 12AX7 / ECC83 - matched pair, Philips logo, phono grade
Price: $229.00
Mullard 12AX7 / ECC83 - matched pair, Philips logo, phono grade
The 1976 Mullard ECC83 / 12AX7 tubes in this precisely matched pair have halo getters and short gray plates (I63 series). The white label has the Philips logo and the Blackburn, UK factory code is etched in the glass. Both tubes test as new
Philips 6V6GT - brown base, matched pair
Philips 6V6GT - brown base, matched pair
Price: $109.00
Philips 6V6GT - brown base, matched pair
The 1960s Philips 6V6GT tubes in this precisely matched pair have brown bases, gray plates, and halo getters with lots of flashing. The yellow print on the glass has the Philips logo and "6V6GTY U.S.A." is etched in the glass. Tubes test as new.
Russian 6Π14Π-EB / 6P14P-EV / 6BQ5 - matched quad
Russian 6P14P-EV / 6Π14Π-EB / 6BQ5 - matched quad
Price: $129.00
Russian 6P14P-EV / 6Π14Π-EB / 6BQ5 - matched quad
The vintage Russian 6P14P-EV (6Π14Π-EB in Cyrillic script) tubes in this precisely matched quad are high-reliability EL84 / 6BQ5 type tubes. They have a higher maximum plate voltage and dissipation than standard 6BQ5 tubes. Tubes test as new.
Sonotone 12AX7 - clear top
Sonotone 12AX7 - clear top, phono grade
Price: $69.00
Sonotone 12AX7 - clear top, phono grade
This 1968 Sonotone 12AX7 / ECC83 tube has gray plates, a side D getter, and a clear top. The yellow print on the glass has the Webcor logo. Tube tests as new with balanced sections and phono/V1 grade noise levels.
Sylvania 12AX7WA - long gray plates
Sylvania 12AX7WA - long gray plates, matched pair
Price: $119.00
Sylvania 12AX7WA - long gray plates, matched pair
The military spec Sylvania 12AX7 tubes in this precisely matched pair have gray plates with copper grid posts and halo getters. The blue or green labels have the PhilipsECG logo and read "JAN 12AX7WA." Both tubes tests as new with phono grade noise levels
Sylvania 6SN7GTB - tall bottle
Sylvania 6SN7GTB - tall bottle
Price: $44.00
Sylvania 6SN7GTB - tall bottle
This 1960s Sylvania 6SN7GTB tube has a tall bottle, black plates, and a halo getter with lots of chrome flashing. The yellow print on the base has the Sylvania lightning logo. Tube tests as new with low noise.
Tung-Sol 12AY7 - gray plates
Tung-Sol 12AY7 - gray plates
Price: $69.00
Tung-Sol 12AY7 - gray plates
This unusual 1961 military spec Tung-Sol 12AY7 tube has short gray plates and a halo getter. The white print on the glass has the Tung-Sol logo and reads "JAN-12AY7." Tube tests as new with balanced sections and very low noise.
Tung-Sol 6SN7WGTA - tall bottle
Tung-Sol 6SN7WGTA - tall bottle
Price: $59.00
Tung-Sol 6SN7WGTA - tall bottle
This 1956 Tung-Sol 6SN7WGTA tube has a tall bottle, black plates, and a horseshoe getter with lots of chrome flashing. The white print on the base has the Tung-Sol logo and reads "USN-CTL-6SN7WGTA." Tube tests as new with low noise.
Tung-Sol JAN 6SL7WGT - ribbed gray plates, brown base
Tung-Sol JAN 6SL7WGT - ribbed gray plates, brown base
Price: $49.00
Tung-Sol JAN 6SL7WGT - ribbed gray plates, brown base
This 1961 military spec Tung-Sol 6SL7WGT tube has ribbed gray plates and a halo getter. The brown base has silver print with the Tung-Sol logo and reads "JAN-CTL-6SL7WGT." Tube tests as new with low noise.
Westinghouse 6V6GTA - 7591 style plates
Westinghouse 6V6GTA - 7591 style plates
Price: $39.00
Westinghouse 6V6GTA - 7591 style plates
This rare 1960s Westinghouse 6V6GTA tube has heavy duty 7591 style plates with copper grid posts and a horseshoe getter. The yellow print on the base has the Westinghouse logo. Tube tests as new with low 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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