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(1) Tested Philco 7AD7 Tube with Box Date Code U3 Power Pentode Loktal Tube

(1) Tested Philco 7AD7 Tube with Box Date Code U3 Power Pentode Loktal Tube

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$9.95 USD
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(1) Tested Philco 7AD7 Tube with Original Box.
Date Code U3.

The box shows some scuffing - see photos.

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

Gm Test = 6875 micromhos
Minimum pass/good = 3900

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