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(1) Tested Tung Sol Type 42 Tube Black Rounded Plates Foil Getter Code 839

(1) Tested Tung Sol Type 42 Tube Black Rounded Plates Foil Getter Code 839

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$48.95 USD
$48.95 USD
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(1) Tested Very Strong Tung Sol Type 42 Tube.
Date Code 839.

Black rounded plates with a bottom square D foil getter.
The tube number on the glass is faded.

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 = 2075 micromhos
Minimum pass/good = 1260
NOS Rating = 1920

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