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Classic Currents

(1) Tested CBS 6SN7GTB Tube with Box Tall Bottle Black Plates Code PC 6SN7GT

(1) Tested CBS 6SN7GTB Tube with Box Tall Bottle Black Plates Code PC 6SN7GT

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$24.95 USD
$24.95 USD
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(1) Tested CBS 6SN7GTB Tube with Original Box.
Date Code PC.

Tall bottle style envelope with a bottom square getter and black T plates.
The box shows some wear from storage and has some yellow tape residue on the front flap - see photos.

Tested on a calibrated Hickok TV-10 military tube tester with no shorts and no leaks with the following results:

Gm Test = 2750-2875 micromhos
Minimum pass/good = 1650-1650

Further tested under real operating conditions on a Class A amplifier and exhibiting no microphonics.

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