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GE 12B4 / 12B4A - matched pair
GE 12B4 / 12B4A - matched pair
Price: $39.00
GE 12B4 / 12B4A - matched pair
The GE 12B4A tubes in this matched pair have black plates and halo getters with lots of flashing. The white print on the glass has the HP logo. Both tubes test as new and are matched for both transconductance (Gm) and current draw (mA).
1L6 heptode
Price: $57.00
1L6 heptode
This 1959 Sylvania 1L6 tube has a silver shield and halo or horseshoe getter. The print on the glass is labeled for Sylvania or GE. Tube tests as new. It ships in its original box.
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.
Arcturus 56 triode - blue globe bottle, engraved base
Arcturus 56 triode - blue globe bottle, engraved base
Price: $99.00
Arcturus 56 triode - blue globe bottle, engraved base
This gorgeous 56 vintage 5-pin triode by Arcturus has a blue globe bottle and engraved black base in outstanding condition. I've listened to this tube in a 300B SET amplifier and verified that it is not microphonic and it does not hum.
RCA JAN 56 triode - matched pair
RCA JAN 56 triode - matched pair
Price: From $39.00 to $59.00
RCA JAN 56 triode - matched pair
The military spec RCA 56 tubes in this precisely matched pair are vintage 5-pin triodes. They have black plates and bottom getters. The silver print on their black bases reads U.S. Navy CRC 56. Click "more info" for current availability.
Sylvania 56 triode - matched pair
Sylvania 56 triode - matched pair
Price: From $29.00 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.
Marconi 5Z3 - smooth black plates
Marconi 5Z3 - smooth black plates
Price: $49.00
Marconi 5Z3 - smooth black plates
This Marconi 5Z3 rectifier tube was made in Canada. It has smooth black plates and bottom D getter. The red print on the base has the Marconi Radiotron logo. Tube tests as new with balanced diode sections.
5Z4 - various brands, metal bottle
5Z4 - metal bottle, various brands
Price: $9.00
5Z4 - metal bottle, various brands
This 5Z4 rectifier tube was made in the USA by various companies. It has a metal bottle with silver or red print. Tube tests as new.
Mullard CV2748 / GZ30 / 5Z4
Mullard CV2748 / GZ30 / 5Z4GT
Price: $59.00
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: $124.00
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.
Raytheon 5Y3WGTB / 6087 - black plates
Raytheon 5Y3WGTB / 6087 - black plates
Price: $44.00
Raytheon 5Y3WGTB / 6087 - black plates
This 1960s military spec Raytheon 6087 / 5Y3WGTB is a ruggedized, indirectly heated 5Y3 tube type. It has black plates, D getter, and a brown base. The yellow print on the glass has the Raytheon logo. Tube tests as new.
Russian 5Ц4С / 5U4C / 5Z4GT
Russian 5U4C / 5Ц4С / 5Z4GT
Price: $24.00
Russian 5U4C / 5Ц4С / 5Z4GT
This vintage Russian 5U4C / 5Ц4С rectifier is a 5Z4 equivalent. This slow-rise, indirectly-heated rectifier should be considered an upgrade for a 5Y3 tube in most circuits, and will drop slightly less voltage. Tube tests as new.
Russian 5Ц4С / 5U4C / 5Z4GT - matched pair
Russian 5U4C / 5Ц4С / 5Z4GT - matched pair
Price: $54.00
Russian 5U4C / 5Ц4С / 5Z4GT - matched pair
The vintage Russian 5U4C / 5Ц4С rectifiers in this precisely matched pair are 5Z4 equivalents. These indirectly-heated rectifiers should be considered an upgrade for 5Y3 tubes in most circuits, and will drop slightly less voltage. Both tubes test a
RCA 6350 - black plates, matched pair
RCA 6350 - black plates, matched pair
Price: $54.00
RCA 6350 - black plates, matched pair
The 1960 RCA 6350 tubes in this precisely matched pair have black plates and dimple D getters. The white label on the glass is labeled for Remington Rand (partial). Both tubes test as new.
RCA 6350 - black plates, triple mica, matched pair
RCA 6350 - black plates, triple mica, matched pair
Price: $64.00
RCA 6350 - black plates, triple mica, matched pair
The rare RCA 6350 tubes in this precisely matched pair have black plates and triple micas. The white label on the glass is missing. Both tubes test as new. They are matched for both current draw (mA) and transconductance (Gm).
RCA 6350 - gray plates, matched pair
RCA 6350 - gray plates, matched pair
Price: $49.00
RCA 6350 - gray plates, matched pair
The late 1960s RCA 6350 tubes in this precisely matched pair have gray plates and halo getters. The red label on the glass is missing. Both tubes test as new. They are matched for both current draw (mA) and transconductance (Gm).
GE 6AN8A - black plates, halo getter
GE 6AN8 / 6AN8A - black plates, halo getter
Price: $18.00
GE 6AN8 / 6AN8A - black plates, halo getter
This 1963 GE 6AN8A tube has black plates and a halo getter. The print on the glass has the white GE logo and "6GH8A" is etched in the glass. Tube tests as new with very low noise.
Sylvania 6AN8A - GE label, matched pair
Sylvania 6AN8A - GE label, matched pair
Price: $54.00
Sylvania 6AN8A - GE label, matched pair
The Sylvania 6AN8A tubes in this precisely matched pair have gray plates and halo getters. The white print on the glass has the GE logo. Both tubes test as new with very low noise and are matched for both current draw (mA) and Gm.
Mazda ECL82 / 6BM8
Mazda ECL82 / 6BM8 - GE label
Price: $39.00
Mazda ECL82 / 6BM8 - GE label
This 1960s Mazda ECL82 / 6BM8 tube has gray plates with copper grid posts and a halo getter (OG-2 series). The white label has the GE logo and the Brussels 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.
Raytheon 6C10 - triple triode
Raytheon 6C10 - triple triode
Price: $84.00
Raytheon 6C10 - triple triode
This Raytheon 6C10 tube has gray plates and a side getter. The yellow label has the Reliatron logo (partial/missing). If you have a Super Champ or Ampeg R-12-RT, you know how hard it is to find these! Tube tests as new with high gain.
RCA 6C4 - black plate
RCA 6C4 - black plate
Price: $17.00
RCA 6C4 - black plate
This 1960 RCA 6C4 tube has a black plate and D getter. The red print on the glass has the RCA logo. This tube tests as new with low noise.
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.
RCA 6EU7 - gray plates, halo getter
RCA 6EU7 - gray plates, halo getter
Price: $37.00
RCA 6EU7 - gray plates, halo getter
This 1960s RCA 6EU7 tube has short gray plates and a halo getter. The red print on the glass has the RCA logo. Tube tests as new with very low noise.
RCA 6J5GT - black plate, metal collar base
RCA 6J5GT - black plate, metal collar base
Price: $32.00
RCA 6J5GT - black plate, metal collar base
This 1950s RCA 6J5GT tube has a black plate and a bottom getter. The metal collar base has red or black print with the RCA logo. Tube tests as new with low noise. It ships in a new white box.
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.
Philips EZ80 / 6V4 - Amperex label
Philips EZ80 / 6V4 - Amperex label
Price: $39.00
Philips EZ80 / 6V4 - Amperex label
This 1968 Philips EZ80 / 6V4 rectifier tube was made in France for Amperex. It has a gray plates and a halo getter (kC5 series). The orange print on the glass has the Amperex globe logo and says "made in France." Tube tests as new.
Raytheon 6E5 - magic eye tube
Raytheon 6E5 - magic eye tube
Price: $49.00
Raytheon 6E5 - magic eye tube
This 1957 Raytheon 6E5 magic eye tube tuning level indicator has a green phosphor element. The yellow print on the base has the Raytheon 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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