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Sylvania 12AX7 - long gray plates, various labels
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Price: From $24.00 to $59.00
Product Options
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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.
See product options for current availability. Tube ships in a new white box.
This tube is sold individually. Photo is a sample from the lot.
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This rare early 1950s Sylvania 12AX7 tube has long black plates with copper grid posts and a windmill getter. The green print on the glass has the Sylvania logo (label may be partial or missing). Tube tests as new with balanced sections.
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Price: From $29.00 to $54.00
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.
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Price: From $69.00 to $84.00
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.
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Price: From $29.00 to $57.00
This early Sylvania 12AX7 tube has short gray plates and a D or halo getter. Click "more info" for current availability.
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The 1959 military spec Sylvania 12AX7 tubes in this precisely matched pair have short gray plates with copper grid posts and D getters. Both tubes test as new and are precisely matched for both current draw (mA) and transconductance (Gm).
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Price: From $14.00 to $64.00
This late 1950s-early 1960s military spec Sylvania 12AX7 tube has long gray plates with copper grid posts and a halo getter. The green print on the glass reads "JHS 12AX7" (labels may be partial). Click "more info" for current availability.
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Price: From $64.00 to $119.00
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.
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Price: From $14.00 to $59.00
This late 1960s-early 1970s military spec Sylvania 12AX7WA tube has long gray plates with copper grid posts and a halo getter. The green print on the glass reads "JHS 12AX7WA" (labels may be partial). 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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