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RCA 12X4 - halo getter
RCA 12X4 - black plates, halo getter
Price: $14.00
RCA 12X4 - black plates, halo getter
This 1960s RCA 12X4 rectifier tube has black plates and a halo getter. The red print on the glass has the RCA logo. Tube tests as new.
Sovtek 6H30Pi-EB
Sovtek 6H30Pi-EB
Price: $44.00
Sovtek 6H30Pi-EB
This Sovtek 6H30Pi-EB tube has gray plates and halo or dish getter. The black print on the glass has the Sovtek logo. Tube tests as new with very low noise.
Sovtek 6H30Pi-EB - matched pair
Sovtek 6H30Pi-EB - matched pair
Price: $89.00
Sovtek 6H30Pi-EB - matched pair
The Sovtek 6H30Pi-EB tubes in this precisely matched pair have gray plates and halo or dish getters. Both tubes tests as new with balanced sections and very low noise. They are matched for both current draw (mA) and transconductance (Gm).
Westinghouse 12X4 - black plates, D getter
Westinghouse 12X4 - black plates, D getter
Price: $14.00
Westinghouse 12X4 - black plates, D getter
This 1960s Westinghouse 12X4 rectifier tube has black plates and a D getter. The yellow print on the glass has the Westinghouse logo (partial). Tube tests as new.
1L6 heptode
GE 1L6 heptode
Price: $57.00
GE 1L6 heptode
This GE 1L6 tube has a silver shield and halo or horseshoe getter. Tube tests as new.
Mullard ECC189 - A frame, dimpled disc getter
Mullard ECC189 - A frame, dimpled disc getter
Price: $49.00
Mullard ECC189 - A frame, dimpled disc getter
This ECC189 dual triode tube was made by Mullard and labeled for RTC. It has the highly sought after "A" frame structure with the dimpled disk getter. Tube tests as new.
Silvertone 30 / 230 triode - matched pair
Silvertone 30 / 230 triode - matched pair
Price: $44.00
Silvertone 30 / 230 triode - matched pair
The 1930s Silvertone 230 tubes in this precisely matched pair are vintage 4-pin triodes compatible with any 30 triode. The engraved bases have the Super Silvertone logo. Both tubes test as new and are matched for both current draw (mA) and Gm.
National Union 56 triode - matched pair
National Union 56 triode - matched pair
Price: $49.00
National Union 56 triode - matched pair
The 1950s National Union 56 triode tubes in this precisely matched pair have black plates and bottom getters with lots of flashing. The white labels on the base have the NU logo. Both tubes test as new with low noise.
Sylvania 56 triode - matched pair
Sylvania 56 triode - matched pair
Price: From $34.00 to $57.00
Sylvania 56 triode - matched pair
The Sylvania 56 tubes in this matched pair are vintage 5-pin triodes. They have black plates and bottom getters. Their black bases have green print with the early Sylvania leaf logo. Both tubes test as new and are precisely matched.
GE JAN 5670 / 2C51 - black plates, matched pair
GE JAN 5670 / 2C51 - black plates, matched pair
Price: $49.00
GE JAN 5670 / 2C51 - black plates, matched pair
The military spec GE 5670 /2C51 tubes in this precisely matched pair have black plates and halo getters. The green labels read "JAN-5670W" and the glass is etched with a triangle to indicate special quality. Both tubes test as new with low noise.
Mullard CV2748 / GZ30 / 5Z4
Mullard CV2748 / GZ30 / 5Z4GT
Price: $44.00
Mullard CV2748 / GZ30 / 5Z4GT
This 1960s military spec Mullard CV2748 / GZ30 rectifier is a 5Z4 equivalent. This indirectly-heated rectifier should be considered an upgrade for a 5Y3 tube in most circuits. The Blackburn, UK factory code is etched in the glass. Tube tests as new.
Mullard CV2748 / GZ30 / 5Z4 - matched pair
Mullard CV2748 / GZ30 / 5Z4GT - matched pair
Price: $99.00
Mullard CV2748 / GZ30 / 5Z4GT - matched pair
The 1960s military spec Mullard CV2748 / GZ30 rectifier tubes in this precisely matched pair are 5Z4 equivalents. These indirectly-heated rectifiers should be considered an upgrade for 5Y3 tubes in most circuits. Both tubes test as new.
GE 6AN8A - black plates, halo getter
GE 6AN8 / 6AN8A - gray plates, halo getter
Price: $24.00
GE 6AN8 / 6AN8A - gray plates, halo getter
This 1963 GE 6AN8A tube has gray plates and a halo getter. The print on the glass has the white GE logo and "6AN8A" is etched in the glass. Tube tests as new with very low noise.
RCA 6AN8 / 6AN8A - gray plates, disc getter
RCA 6AN8 / 6AN8A - gray plates, disc getter
Price: $24.00
RCA 6AN8 / 6AN8A - gray plates, disc getter
This 1970s RCA 6AN8A tube has gray plates and a disc getter. The red print on the glass has the RCA logo. Tube tests as new with very low noise.
Mullard ECL82 / 6BM8
Mullard ECL82 / 6BM8
Price: $44.00
Mullard ECL82 / 6BM8
This 1962 Mullard ECL82 / 6BM8 tube has gray plates with copper grid posts and a halo getter. The white label has the Mullard label with BVA military insignia. The Blackburn, UK factory code is etched in the glass. Tube tests as new.
GE 6C4 - gray plate
GE 6C4 - gray plate
Price: $10.00
GE 6C4 - gray plate
This 1970s GE 6C4 tube has a gray plate and halo getter. The white print on the glass has the GE logo. This tube tests as new with low noise.
GE 6C4 - matched pairs
GE 6C4 - matched pairs
Price: $22.00
GE 6C4 - matched pairs
These 1970s GE 6C4 tubes have gray plates and halo getters. The white print on the glass has the GE logo. Both tubes test as new with low noise.
GE 6T9 - triode-pentode
GE 6T9 - triode-pentode
Price: $19.00
GE 6T9 - triode-pentode
This 1964 GE 6T9 tube has gray plates and a side getter. The red label has the GE logo. Tube tests as new.
GE 6EU7 - gray plates, halo getter
GE 6EU7 - gray plates, halo getter
Price: $32.00
GE 6EU7 - gray plates, halo getter
This 1960s GE 6EU7 tube has short gray plates and a halo getter. The white print on the glass has the GE logo. Tube tests as new with very low noise and ships in its original box.
Mullard 6EU7 - matched pair
Mullard 6EU7 - matched pair
Price: $84.00
Mullard 6EU7 - matched pair
The 1964 Mullard 6EU7 tubes in this precisely matched pair have short gray plates with copper grid posts and halo getters. The red label has the 3M logo and the Blackburn, UK factory code is etched in the glass. Both tubes test as new with low noise.
Raytheon 6EU7 - gray plates, halo getter
Raytheon 6EU7 - gray plates, halo getter
Price: $37.00
Raytheon 6EU7 - gray plates, halo getter
This 1960s Raytheon 6EU7 tube has short gray plates with copper grid posts and a halo getter. The yellow print on the glass has the Raytheon logo. Tube tests as new with very low noise.
Raytheon 6EU7 - matched pair
Raytheon 6EU7 - matched pair
Price: $84.00
Raytheon 6EU7 - matched pair
The 1963 Raytheon 6EU7 tubes in this precisely matched pair have short gray plates with copper grid posts and halo getters. The yellow print on the glass has the Raytheon logo. Both tubes test as new with low noise.
Mullard 6GW8 / ECL86 - various labels
Mullard 6GW8 / ECL86 - various labels
Price: $49.00
Mullard 6GW8 / ECL86 - various labels
This 1960s Mullard 6GW8 / ECL86 tube has gray plates with copper grid posts and a halo getter. The Blackburn, UK factory code is etched in the glass. Tube tests as new with low noise.
Silvertone 6J5GT/G - black plate, triple mica
Silvertone 6J5GT/G - black plate, triple mica
Price: $34.00
Silvertone 6J5GT/G - black plate, triple mica
This 1944 Silvertone 6J5GT/G tube has a black plate and triple mica. The white print on the base has the Super Silvertone logo. Tube tests as new with low noise.
Sylvania 6J5GT/G - black plates, metal collar base
Sylvania 6J5GT/G - black plate, metal collar base
Price: From $14.00 to $32.00
Sylvania 6J5GT/G - black plate, metal collar base
This 1940s Sylvania 6J5GT/G tube has round black plates and a bottom getter with lots of flashing. The metal collar base has green or black print with the Sylvania lightning logo. Click "more info" for current availability.
Visseaux 6K6GT - black plates
Visseaux 6K6GT - black plates
Price: $24.00
Visseaux 6K6GT - black plates
This 1950s Visseaux 6K6GT tube has black plates, a bottom getter, and an engraved bases. The white print on the glass says "Made in France." These Visseaux 6K6GTs are considered some of the best-sounding 6K6 tubes ever made. Tube tests as new.
Visseaux 6K6GT - matched pair
Visseaux 6K6GT - matched pair
Price: $49.00
Visseaux 6K6GT - matched pair
The 1950s Visseaux 6K6GT tubes in this precisely matched pair have black plates, bottom getters, and engraved bases. The white print on the glass says "Made in France." Both tubes test as new.
Ken-Rad 1629 / VT-138 - magic eye tube
1629 / VT-138 - magic eye tube, various labels
Price: $44.00
1629 / VT-138 - magic eye tube, various labels
This 1629 / VT-138 is a military spec eye tube for use as a tuning level indicator. It has a green phosphor element. Tubes tests as new / bright.
GE 6E5 - magic eye tube
6E5 magic eye tube - various brands
Price: $39.00
6E5 magic eye tube - various brands
This 6E5 magic eye tube tuning level indicator has a green phosphor element that tests as new / bright.
Russian 6E1P / 6BR5 / EM80 - magic eye tube
Russian 6E1P / 6BR5 / EM80 - magic eye tube
Price: $10.00
Russian 6E1P / 6BR5 / EM80 - magic eye tube
This Russian 6E1P "magic eye" tube is used as a tuning level indicator. It is equivalent to the EM80 and 6BR5 tube types. The gold print on the glass has the Reflektor factory logo. Tube tests as new / very bright.
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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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