This 1959 Amperex ECC83 / 12AX7 tube has gray plates and a large halo getter (I61 series). The red label has the Hammond logo and the Heerlen factory code is etched in the glass. Tube tests as new with phono grade noise levels.
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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. Tube tests as new with phono grade noise levels.
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The Ei ECC83 / 12AX7 tubes in these precisely matched pairs 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 1970s GE 12AX7A tube has short gray plates and a halo getter. The white print on the glass has the GE logo and "12AX7A" is etched in the glass. Tube tests as new with phono / V1 grade noise levels.
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This 1970s 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 1962 Raytheon 12AX7A has long black plates and a halo getter. The yellow label has the Raytheon logo (partial). Tube tests as new with balanced sections and phono/V1 grade noise quality.
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This 1955 RCA 12AX7 tube has long black plates and a slanted D getter. The white print on the glass has the RCA logo. Tube tests as new with phono / V1 grade noise levels.
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This 1960s RCA 12AX7A tube has short gray plates and a halo getter. The red print on the glass has the RCA logo (partial/missing). Tube tests as new with phono / V1 grade noise levels.
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The late 1960s Siemens E83CC tubes in this precisely matched pair are premium quality 12AX7 / ECC83 tubes. They have gray plates and halo getters. Both tubes test as new with phono / V1 grade noise levels.
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This Siemens E83CC tube is a premium quality 12AX7 / ECC83 tube. It has gray plates and a halo getter. The Munich factory code is etched in the glass. Tube tests as new with balanced sections and phono grade noise levels.
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Price: From $14.00 to $29.00
This Sovtek 12AX7WXT+ tube has gray plates and triple micas. The black print on the glass has the Sovtek logo and says "Made in Russia." Click "more info" for current availability.
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Price: From $39.00 to $64.00
The Sovtek 12AX7WXT+ tubes in this precisely matched pair have short gray plates and triple micas. The black or silver print on the glass has the Sovtek logo and says "Made in Russia." Click "more info" for current availability.
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This 1955 military spec Sylvania 12AX7 tube has long black plates with copper grid posts and a horseshoe getter. The green print on the glass reads "JHS 12AX7" (may be partial). Tube tests as new with preamp grade noise levels.
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This 1963 Telefunken ECC83 / 12AX7 has long ribbed plates and a halo getter. The white label on the glass has the Telefunken logo in excellent condition. The diamond imprint on the base. Tube tests as new with phono/V1 grade noise levels.
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The 1962 Telefunken 12AX7 / ECC83 tubes in this precisely matched pair have smooth plates. The white labels have Telefunken logos. Both tubes test as new with phono grade noise levels.
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This 1966 Telefunken ECC83 / 12AX7 has smooth gray plates. The white print on the glass has the Telefunken logo and the diamond imprint on the base. Tube tests as new with phono grade noise levels.
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The 1965 Tung-Sol 12AX7A tubes in this precisely matched pair have long gray plates and halo getters. The white labels on the glass have the Tung-Sol logo. Both tubes test as new with phono grade noise levels.
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This 1970s Sylvania 7025 is a low noise 12AX7 tube type. It has long gray plates with copper grid posts and a halo getter. The yellow label has the PhilipsECG logo (partial). Tube tests as new with high gain and preamp grade noise levels.
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