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Classic Currents

(1) Tested Unbranded 12SL7GT Tube Black Plates 12SL7 GT High Mu Twin Triode Tube

(1) Tested Unbranded 12SL7GT Tube Black Plates 12SL7 GT High Mu Twin Triode Tube

Tested and Guaranteed

$9.95 USD
$9.95 USD
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(1) Tested Unbranded 12SL7GT Tube.
Manufacturer unknown.
Top halo getter with black angled and rounded plates.

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

Gm Test = 1625-1750 micromhos
Minimum pass/good = 1000-1000 

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