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(1) Tested 1956 Sylvania Type 30 Tube Code 6-39 Triode Amplifier Vacuum Tube

(1) Tested 1956 Sylvania Type 30 Tube Code 6-39 Triode Amplifier Vacuum Tube

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$28.95 USD
$28.95 USD
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(1) Tested Sylvania Type 30 Tube.
Date Code 6-39 (39th week of 1956).

The wording on the base is partially worn and faded but still legible.

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

Gm Test = 800 micromhos
Minimum pass/good = 570

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