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Classic Currents

(1) Tested National Union 6N7 Tube Date Code NN Twin Power Triode Tube

(1) Tested National Union 6N7 Tube Date Code NN Twin Power Triode Tube

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$9.95 USD
$9.95 USD
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(1) Tested National Union 6N7 Tube.
Date Code NN.

The wording is slightly 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 = 1475-1450 micromhos
Minimum pass/good = 950-950

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