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(1) Tested Olympic 12BY7A Tube Date Code K3E Sharp Cutoff Pentode 12BY7 A Tube

(1) Tested Olympic 12BY7A Tube Date Code K3E Sharp Cutoff Pentode 12BY7 A Tube

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(1) Tested Olympic 12BY7A Tube.
Date Code K3E.

The Olympic name is faded but still legible.

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

Gm Test = 6375 micromhos
Minimum pass/good = 5700

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