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(1) Tested National Union 7B5 Tube Loctal Tube Power Pentode Loktal Tube

(1) Tested National Union 7B5 Tube Loctal Tube Power Pentode Loktal Tube

Tested and Guaranteed

$9.95 USD
$9.95 USD
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(1) Tested National Union 7B5 Loctal Tube.

The wording is partially worn away but still recognizable as being National Union branded.

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

Gm Test = 1925 micromhos
Minimum pass/good = 1000

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