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(1) Tested Sylvania 12GN7A Tube Sharp Cutoff Pentode 12GN7 A Tube

(1) Tested Sylvania 12GN7A Tube Sharp Cutoff Pentode 12GN7 A Tube

Tested and Guaranteed

$7.95 USD
$7.95 USD
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(1) Tested Sylvania 12GN7A Tube.
The wording is partially worn away but still recognizable as being Sylvania branded.

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

Gm Test = 11,000 micromhos
Minimum pass/good = 9500

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