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12AX7 / ECC83 / 7025 tubes


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Genalex Gold Lion 12AX7 / ECC83 / B759 - gold pins
Genalex Gold Lion 12AX7 / ECC83 / B759 - gold pins
Price: $40.00
Genalex Gold Lion 12AX7 / ECC83 / B759 - gold pins
The reissue Genalex Gold Lion ECC83 / B759 tube is New Sensor's modern-day effort to recreate the renowned sound signature of the vintage European original. This Russian-made version features long ribbed plates, a dual post dish getter, and gold pins.
Genalex Gold Lion 12AX7 / ECC83 / B759 - precision matched sets
Genalex Gold Lion 12AX7 / ECC83 / B759 - precision matched sets
Price: $86.00
Genalex Gold Lion 12AX7 / ECC83 / B759 - precision matched sets
The reissue Genalex Gold Lion 12AX7 / ECC83 / B759 tube is New Sensor's modern-day effort to recreate the renowned sound signature of the vintage European original. This Russian-made version features long plates, a dual post dish getter, and gold pins.
James Audio JS-6223HS Push-Pull Output Transformers - factory matched pair
James Audio JS-6223HS Push-Pull Output Transformers - factory matched pair
Price: $259.00
James Audio JS-6223HS Push-Pull Output Transformers - factory matched pair
This factory matched pair of 90mA, 20W James Audio JS-6223HS power output transformers is recommended for DIY push-pull tube amplifiers built for tube types that can run at 3.4K, such as 2A3, 6A3, 6A5G, 6B4 and 300B.
James Audio JS-6228HS Push-Pull Output Transformers
James Audio JS-6228HS Push-Pull Output Transformers - factory matched pair
Price: $259.00
James Audio JS-6228HS Push-Pull Output Transformers - factory matched pair
This factory matched pair of 90mA, 20W James Audio JS-6228HS power output transformers is recommended for DIY push-pull tube amplifiers built for tube types that can run at 8K, such as 6BQ5/EL84 and 6V6, or 4K, such as 2A3 and 300B.
Amperex 12AX7 / ECC83 - dimpled disc getter
Amperex 12AX7 / ECC83 - dimpled disc getter, phono grade
Price: $89.00
Amperex 12AX7 / ECC83 - dimpled disc getter, phono grade
This 1974 Amperex 12AX7 / ECC83 tube has gray plates and a dimple disc getter. The orange label has the Amperex globe logo and the Heerlen, Holland factory code is etched in the glass. Tube tests as new with phono/V1 grade noise levels.
Amperex 12AX7 / ECC83 - matched pair, phono grade
Amperex 12AX7 / ECC83 - matched pair, phono grade
Price: $194.00
Amperex 12AX7 / ECC83 - matched pair, phono grade
The 1970s Amperex 12AX7 / ECC83 tubes in this precisely matched pair have dimpled disc getters (I66 series) and the orange Amperex globe logos. The Heerlen factory codes are etched in the glass. Both tubes test as new with phono grade noise levels.
 Amperex 12AX7 / ECC83 - various labels, 1960s
Amperex 12AX7 / ECC83 - various labels, 1960s
Price: From $74.00 to $84.00
Amperex 12AX7 / ECC83 - various labels, 1960s
This 1960s Amperex ECC83 / 12AX7 tube was made in Holland and labeled for organ, hi-fi audio, or medical companies. The Heerlen factory code is etched in the glass. Click "more info" for current availability.
Ei 12AX7 / ECC83 - smooth plates, pre-war Yugoslavia
Ei 12AX7 / ECC83 - smooth plates, pre-war Yugoslavia
Price: From $15.00 to $44.00
Ei 12AX7 / ECC83 - smooth plates, pre-war Yugoslavia
This Ei ECC83 / 12AX7 tube was made in pre-war Yugoslavia and labeled for other companies. It has smooth gray plates and a halo getter, just like the famed Telefunken 12AX7 tube it was modeled after. Click "more info" for current availability.
12AX7 / 12AX7A / ECC83 Pre-war Yugoslavia - premium matched pair
Ei 12AX7 / ECC83 - smooth plates, pre-war Yugoslavia, matched sets
Price: From $36.00 to $92.00
Ei 12AX7 / ECC83 - smooth plates, pre-war Yugoslavia, matched sets
The Ei ECC83 / 12AX7 tubes in these precisely matched pairs, trios, quads, and sextets were made in pre-war Yugoslavia and labeled for Audio Research. They have smooth gray plates, just like the famed Telefunken 12AX7 tubes they were modeled after.
GE 12AX7 / 12AX7A - long plates, matched pair
GE 12AX7 - long plates, matched pair
Price: From $67.00 to $109.00
GE 12AX7 - long plates, matched pair
The 1962-63 GE 12AX7A tubes in this precisely matched pair have long gray plates and halo getters. The white print on the glass is labeled for Kinsman organs. Click "more info" for current availability.
Hitachi 12AX7 - short gray plates, various labels
Hitachi 12AX7 - short gray plates, various labels
Price: From $47.00 to $54.00
Hitachi 12AX7 - short gray plates, various labels
This Hitachi 12AX7 tube was made in Japan and labeled for various companies. It has short gray plates and a halo getter. Click "more info" for current availability.
Matsushita 12AX7 - slanted halo getter
Matsushita 12AX7 - slanted halo getter
Price: $64.00
Matsushita 12AX7 - slanted halo getter
This 1960s Matsushita 12AX7 tube was made in Japan. It has Mullard style short gray plates and a slanted halo getter. The yellow print on the glass has the Raytheon logo. Tube tests as new with balanced sections.
Mullard made 12AX7 / ECC83
Mullard 12AX7 / ECC83 - various labels
Price: From $29.00 to $89.00
Mullard 12AX7 / ECC83 - various labels
This Mullard ECC83 / 12AX7 tube has short gray plates and a halo getter (I61 or I63 series). It was made in Great Britain and labeled for other companies. The Blackburn, UK factory code is engraved in the glass. Click "more info" for current availability.
Philips Miniwatt 12AX7 / ECC83 - halo getter, matched pair
Philips Miniwatt 12AX7 / ECC83 - matched pair, phono grade
Price: $224.00
Philips Miniwatt 12AX7 / ECC83 - matched pair,  phono grade
The 1963-64 Philips Miniwatt 12AX7 / ECC83 tubes in this precisely matched pair were made in Heerlen, Holland and have the Miniwatt label. Both tubes test as new with balanced sections and phono/V1 grade noise levels.
Philips Miniwatt 12AX7 / ECC83 - halo getter
Philips Miniwatt 12AX7 / ECC83 - phono grade
Price: $119.00
Philips Miniwatt 12AX7 / ECC83 - phono grade
This 1960s Philips Miniwatt 12AX7 / ECC83 tube has gray plates and halo getter. The white label has the Miniwatt logo and the Heerlen, Holland factory code is etched in the glass. Tube tests as new with balanced sections and phono/V1 grade noise levels.
Raytheon 12AX7 - long black plates, halo getter
Raytheon 12AX7 - long black plates, phono grade
Price: $69.00
Raytheon 12AX7 - long black plates, phono grade
This 1959 Raytheon 12AX7 has long black plates and a halo getter. The yellow print on the glass has the Raytheon logo. Tube tests as new with balanced sections and phono/V1 grade noise quality.
Raytheon 12AX7 - long gray plates, matched pair
Raytheon 12AX7 - long gray plates, matched pair
Price: $69.00
Raytheon 12AX7 - long gray plates, matched pair
The 1962 Raytheon 12AX7 tubes in this precisely matched pair were made in the USA. They have long gray plates and halo getters. The yellow print on the glass is labeled for Baldwin organs. Both tubes test good (about 80% for Gm on each section).
RCA 12AX7 - black plates
RCA 12AX7 - black plates
Price: From $39.00 to $114.00
RCA 12AX7 - black plates
This 1958 RCA 12AX7 tube has long black plates and a D getter. The white print on the glass has the RCA logo (partial). Grab one while supplies last! Click "more info" for current availability.
RCA 12AX7 / 12AX7A - gray plates, halo getter
RCA 12AX7A - short gray plates, halo getter
Price: From $34.00 to $69.00
RCA 12AX7A - short gray plates, halo getter
This RCA 12AX7A tube has gray plates and a halo getter. Grab these popular tubes while supplies last! Label conditions vary, but these tubes are all the same construction. Click "more info" for current availability.
Siemens 12AX7 / ECC83 - dual post getter, OEM
Siemens 12AX7 / ECC83 - dual post getter, various labels
Price: From $32.00 to $72.00
Siemens 12AX7 / ECC83 - dual post getter, various labels
This 1960s Siemens 12AX7 / ECC83 tube was made in West Germany (I61 or I62 series) and labeled for other companies. It has a halo getter with dual support posts. The Munich factory code is etched in the glass. Tube tests as new with balanced sections.
Siemens 12AX7 / ECC83 - long plates, mC1 series
Siemens 12AX7 / ECC83 - long plates, mC1 series
Price: $184.00
Siemens 12AX7 / ECC83 - long plates, mC1 series
This very rare 1957 Siemens 12AX7 / ECC83 tube has 17mm long plates and a halo getter (mC1 series). The white label is missing and the Munich, West Germany factory code is etched in the glass. Tube tests as new with balanced sections.
Siemens 12AX7 / ECC83 - long plates, phono grade
Siemens 12AX7 / ECC83 - long plates, mCP series
Price: $184.00
Siemens 12AX7 / ECC83 - long plates, mCP series
This very rare 1950s Siemens 12AX7 / ECC83 tube has 17mm long plates and a halo getter (mCP series). The white label has the Mazda logo (partial). The Munich, West Germany factory code is etched in the glass. Tube tests as new with balanced sections.
Sonotone 7025 / 12AX7 - clear top
Sonotone 12AX7 - clear top
Price: $69.00
Sonotone 12AX7 - clear top
This 1960s Sonotone 12AX7 / ECC83 tube has gray plates, a side D getter, and a clear top. The white print on the glass has the Sonotone logo (partial). Tube tests as new with very low noise.
Sylvania 12AX7 - long gray plates
Sylvania 12AX7 - long gray plates
Price: From $29.00 to $49.00
Sylvania 12AX7 - long gray plates
This late 1950s-early 1960s Sylvania 12AX7 tube has long gray plates with copper grid posts and a halo or D getter. The yellow or green print on the glass has the Sylvania logo (label may be partial or missing). Click "more info" for current availability.
Sylvania 12AX7 - long gray plates, various labels
Price: $59.00
Sylvania 12AX7 - long gray plates, various labels
This 1960s Sylvania 12AX7 tube was made in the USA and labeled for other companies. It has long gray plates with copper grid posts and a halo getter. Click "more info" for current availability.
Sylvania 12AX7 - premium matched pair, organ stock
Sylvania 12AX7 - matched pair, organ stock
Price: From $69.00 to $84.00
Sylvania 12AX7 - matched pair, organ stock
The 12AX7 tubes in this precisely matched pair were made by Sylvania and labeled for Baldwin organs (green label). They have gray plates and halo getters. Click "more info" for current availability.
Sylvania 12AX7 / JHS 12AX7 - premium matched pair
Sylvania 12AX7 / JHS 12AX7 - matched pair
Price: From $64.00 to $119.00
Sylvania 12AX7 / JHS 12AX7 - matched pair
The early 1960s military spec Sylvania 12AX7 tubes in this precisely matched pair have long gray plates with copper grid posts and halo getters. Click "more info" for current availability.
Telefunken 12AX7 / ECC83 - ribbed plates, diamond imprint
Telefunken 12AX7 / ECC83 - ribbed plates
Price: From $32.00 to $87.00
Telefunken 12AX7 / ECC83 - ribbed plates
This legendary Telefunken ECC83 / 12AX7 has ribbed plates and a halo getter. The white label on the glass has the Telefunken logo (label may be partial). The diamond imprint on the base. Click "more info" for current availability.
Telefunken 12AX7 / ECC83 - ribbed plates, matched pair
Telefunken 12AX7 / ECC83 - ribbed plates, matched pair
Price: $229.00
Telefunken 12AX7 / ECC83 - ribbed plates, matched pair
The 1950s Telefunken 12AX7 / ECC83 tubes in this precisely matched pair have ribbed plates and diamond imprints on the bases. The white print on the glass has the Telefunken logo (partial). Both tubes test as new with and phono grade noise levels.
Telefunken 12AX7 / ECC83 - ribbed plates, diamond imprint, OEM
Telefunken 12AX7 / ECC83 - ribbed plates, various labels
Price: From $34.00 to $84.00
Telefunken 12AX7 / ECC83 - ribbed plates, various labels
This ECC83 / 12AX7 tube was made in West Germany by Telefunken and labeled for other companies. It has long ribbed plates and a diamond imprint on the base. Click "more info" for current availability.
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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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