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(1) Tested National Union 35Z4GT Tube Date Code 5139 35Z4 GT Rectifier Tube (b)

(1) Tested National Union 35Z4GT Tube Date Code 5139 35Z4 GT Rectifier Tube (b)

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$9.95 USD
$9.95 USD
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(1) Tested Very Strong National Union 35Z4GT Tube.
Date Code 5139.

Tested on a calibrated Hickok TV-10 military tube tester with no shorts at 1625 where 800 is minimum pass/good.

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