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(1) Tested National Union 7AD7 Tube with Box Code 5113 Power Pentode Loktal (a)

(1) Tested National Union 7AD7 Tube with Box Code 5113 Power Pentode Loktal (a)

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$9.95 USD
$9.95 USD
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(1) Tested National Union 7AD7 Tube with Original Box.
Date Code 5113. 
The box shares the same date code as the tube so that you know it's truly original.

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

Gm Test = 6750 micromhos
Minimum pass/good = 3900

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