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(1) Tested National Union Type 24A Tube Date Code J Engraved Base Screen Grid Tube

(1) Tested National Union Type 24A Tube Date Code J Engraved Base Screen Grid Tube

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$11.95 USD
$11.95 USD
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(1) Tested National Union Type 24A Engraved Base Tube.
Date Code J.

This tube tests as NOS.

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

Gm Test = 1050 micromhos
Minimum pass/good = 630
Average NOS rating = 945

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