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(1) Tested Zenith 6ES5 Tube with Box Date Code 9-52 Triode Vacuum Tube

(1) Tested Zenith 6ES5 Tube with Box Date Code 9-52 Triode Vacuum Tube

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$9.95 USD
$9.95 USD
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(1) Tested Zenith 6ES5 Tube with Original Box.
Date Code 9-52.
The 312 EIA code indicates that this tube was made by Sylvania for Zenith.

This tube tests as NOS.

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

Gm Test = 6875 micromhos
Minimum pass/good = 4200
NOS rating = 6300

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