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RCA 5963 / 12AU7 - black plates, matched pair
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SOLD OUT
Item Number: 412BP
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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 with balanced sections. They are matched for both current draw (mA) and transconductance (Gm). Tubes ship in new white boxes with test results for each triode section.
These tubes are sold as a matched pair. Photo is a sample from the lot.
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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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The 5963 tubes in this precisely matched pair are industrial versions of the 12AU7 type tube. They were made by RCA and labeled for Hewlett Packard. They have long gray plates and halo getters. Both tubes test as new with balanced sections and low noise.
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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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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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