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Classic Currents

(1) Tested Sylvania 2AF4B Tube Date Code XY Medium Mu Triode Tube

(1) Tested Sylvania 2AF4B Tube Date Code XY Medium Mu Triode Tube

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$6.95 USD
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(1) Tested Sylvania 2AF4B Tube.
Date Code XY.

The wording is partially worn but still very legible.

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

Gm Test = 4750 micromhos
Minimum pass/good = 2840

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