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12AX7 / ECC83 / 7025 tubes
The 1971 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.
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This 1971 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 high gain and phono/V1 grade noise levels.
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This 1960s Amperex ECC83 / 12AX7 tube was made in Holland and labeled for Hammond organs. The Heerlen factory code is etched in the glass. Tube tests as new with phono grade noise levels.
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Price: From $19.00 to $59.00
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.
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Price: From $44.00 to $129.00
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.
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This 1960s Matsushita 12AX7 tube was made in Japan. It has Mullard style short gray plates and a slanted halo getter. The white print on the glass has the Matsushita logo. Tube tests as new with phono/V1 grade noise.
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This very rare 1959 Mullard 12AX7 / ECC83 tube has long plates with copper grid posts and a dual post round getter (f92 series). The white label has the early shield logo and the Blackburn factory code is etched in the glass. Tube tests as new.
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Price: From $22.00 to $79.00
This RCA 12AX7A tube has gray plates and a halo getter. The red print on the glass has the RCA logo (partial / missing). Grab these popular tubes while supplies last! Click "more info" for current availability.
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This late 1950s-early 1960s Sylvania 12AX7 tube has long gray plates with copper grid posts and a halo getter. The yellowprint on the glass has the Sylvania logo. Tube tests a new with preamp grade noise levels.
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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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