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RCA 5963 / 12AU7 - matched pair, various labels
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1 matched pairs in stock
Item Number: 336
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The RCA 5963 tubes in this precisely matched pair are industrial versions of the 12AU7 type tube. They have long gray plates and halo getters. The red print on the glass has the Hewlett Packard logo.
Both tubes test as new with balanced sections and very low noise. They are matched for both current draw (mA) and transconductance (Gm). They ship in new white boxes.
These tubes are sold as a matched pair. Photo is a sample pair from the lot. Singles, when available, are listed as Item 337.
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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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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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