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(1) Tested Very Strong National Union 39/44 Tube with Box Code GN Pentode Tube

(1) Tested Very Strong National Union 39/44 Tube with Box Code GN Pentode Tube

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$11.95 USD
$11.95 USD
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(1) Tested National Union Type 39/44 Tube with Original Box.
Date Code GN.
The date code on the tube is the same code on the front tab of the box, so you know it's the same one that it left the factory with.

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 = 1500 micromhos
Minimum pass/good = 630
NOS rating = 945

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