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Classic Currents

(1) Tested Silvertone 6SN7GTB Tube Chrome Dome Black Plates Code 552 6SN7GT

(1) Tested Silvertone 6SN7GTB Tube Chrome Dome Black Plates Code 552 6SN7GT

Made by Sylvania for Silvertone

$18.95 USD
$18.95 USD
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(1) Tested Silvertone Chrome Dome 6SN7GTB Tube.
Date Code 552.
The 312 EIA code indicates that this tube was made by Sylvania for Silvertone.

Chrome Dome style envelope with black angled T plates and clear mica spacers.

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

Gm Test = 2375-2625 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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