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(1) Tested RCA 6F5 Tube Date Code 817 High Mu Triode Amplifier Vacuum Tube

(1) Tested RCA 6F5 Tube Date Code 817 High Mu Triode Amplifier Vacuum Tube

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(1) Tested RCA 6F5 Tube.
Date Code 817.

This tube tests as NOS.

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

Gm Test = 1050 micromhos
Minimum pass/good = 630
Average NOS rating = 945
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