This 1959 CBS 12AU7A tube has short black plates with copper grid posts and a horseshoe getter. The red print on the glass has the Hammond organs logo (may be partial). Tube tests as new with balanced sections and very low noise.
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The 1960s GE 12AU7A tubes in this precisely matched pair have pinched gray plates and halo getters. The white print on the glass has the GE logo. Both tubes test as new and are matched for both current draw (mA) and Gm.
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This 1960s Mullard 12AU7A / ECC82 tube has gray plates and a halo getter (Gf2 series). The white print has logos of other companies and the Mitcham, UK factory code is etched in the glass. Tube tests as new with low noise.
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The 1960s RCA 12AU7A tubes in this precisely matched pair have long gray plates, side getters, and clear tops. The orange print on the glass has the Conn organs logo. Both tubes test as new with balanced sections and low noise.
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This 1960s 12AU7A tube was made by RCA and labeled for organ companies. It has a clear top, side getter, and ribbed gray plates. Tube tests as new.
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This rare 1950s Sylvania 12AU7 tube has long shiny black plates with copper grid posts and a windmill getter. The green print on the glass has the Sylvania lightning logo (label may be partial/missing). Tube tests as new.
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This 1959 Sylvania 12AU7 tube has gray plates with copper grid posts and a D getter. The green print on the glass is labeled for Conn organs. Tube tests as new with balanced sections.
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The 1960s Sylvania 12AU7A tubes in this precisely matched pair were made in the USA and labeled for other companies. They have halo getters and long gray plates with copper grid posts. Both tubes test as new with very low noise.
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Price: From $10.00 to $23.00
This early 1960s 12AU7A tube was made by Sylvania and labeled for Hammond or Baldwin organs. It has long gray plates with copper grid posts and a halo getter. Click "more info" for current availability.
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This 1955 Telefunken 12AU7 / ECC82 tube has long ribbed plates and a halo getter. The white print on the glass has the Telefunken logo. The diamond imprint is stamped in the base of the glass. Tube tests as new with very low noise.
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This 1962 Telefunken 12AU7 / ECC82 tube has long smooth plates and a halo getter. The white label has the Telefunken logo and the diamond imprint is stamped in the base of the glass. Tube tests as new with balanced sections and low noise.
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This 12AU7 tube was made in Japan and labeled for Baldwin organs. It has long gray plates and a halo getter. Tube tests as new.
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The Toshiba 12AU7 tubes in this precisely matched pair were made in Japan and labeled for Baldwin organs. They have long gray plates and halo getters. Both tubes test as new and are matched for both current draw (mA) and transconductance (Gm).
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Price: From $24.00 to $37.00
This 1960s Tung-Sol 12AU7A tube has long gray plates and a halo or halo getter. The white print on the glass has the Tung-Sol logo. Click "more info" for current availability.
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This 1962 Westinghouse 12AU7A tube has long black plates. The yellow label on the glass has the Conn organ logo. Tube tests as new with balanced sections.
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This early 1960s military spec GE 5814A is a 12AU7 tube type. It has gray plates, triple micas, and extra support rods. The white print on the glass reads "JG-5814A" or "JG-5814WB." Tube tests as new with very low noise.
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The 1957 RCA 5963 tubes in this precisely matched pair are industrial 12AU7 type tubes. They have long black plates and foil D getters. The white print on the glass has the RCA logo. Both tubes test as new.
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This 1957 RCA 5963 is an industrial 12AU7 type tube. It has long black plates and a D getter with foil strip. The white print on the glass has the RCA logo. Tube tests as new.
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This 1970s military spec RCA 5963 is an industrial 12AU7 type tube. It has long gray plates and a halo getter. The green or orange print on the glass has the RCA logo and reads "JAN 5693." Tube tests as new.
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This 1960s military spec GE 6189 tube is a 12AU7WA type tube. It has gray plates, triple micas, and extra support rods. The white print on the glass has the GE logo (may be partial/missing). Tube tests as new with balanced sections.
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