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(1) Tested National Union 12SK7GT/G Tube 12SK7 GT G Pentode Vacuum Tube

(1) Tested National Union 12SK7GT/G Tube 12SK7 GT G Pentode Vacuum Tube

Tested and Guaranteed

$6.95 USD
$6.95 USD
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(1) Tested National Union 12SK7GT/G Tube.

Some overall surface rust/pitting on the base - see photos.

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

Gm Test = 1750 micromhos
Minimum pass/good = 1260

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