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(1) Tested Sylvania 7F8 Tube Loctal Tube Dual Triode Vacuum Loktal Tube

(1) Tested Sylvania 7F8 Tube Loctal Tube Dual Triode Vacuum Loktal Tube

Tested and Guaranteed

$10.95 USD
$10.95 USD
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(1) Tested Sylvania 7F8 Tube.

The wording is partially worn off of the glass but is still recognizable as being Sylvania branded.

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

Gm Test = 5125-5250 micromhos
Minimum pass/good = 3150-3150

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