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(1) Tested Tung-Sol 6SD7GT Tube Date Code 14 Tung Sol 6SD7 GT Vacuum Tube

(1) Tested Tung-Sol 6SD7GT Tube Date Code 14 Tung Sol 6SD7 GT Vacuum Tube

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(1) Tested Tung-Sol 6SD7GT Tube.
Date Code 14.

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

Gm Test = 3000 micromhos
Minimum pass/good = 1900

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