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GE 12AU7A - matched pair
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SOLD OUT
Item Number: 635GE
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The 1960s GE 12AU7A tubes in this precisely matched pair have short gray plates and halo getters with copper grid and getter posts. The white print on the glass has the GE logo.
Both tubes test as new with balanced sections and low noise. They are matched for both current draw (mA) and transconductance (Gm). Tubes ship in new white boxes with test results.
These tubes are sold as a matched pair. Photo is of a sample from the lot.
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This 1960s military spec GE 5814A is a 12AU7 tube type. It has gray plates and a halo or disc getter. The green print on the glass has the GE logo and reads "JG-5814A." Tube tests as new with very low noise.
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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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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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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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