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(1) Tested Ken Rad 6K7 Tube Date Code B3 Amplifier Pentode Vacuum Tube

(1) Tested Ken Rad 6K7 Tube Date Code B3 Amplifier Pentode Vacuum Tube

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(1) Tested Ken-Rad 6K7 Tube.
Date Code B3.

This tube tests above NOS ratings.

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

Gm Test = 1775 micromhos
Minimum pass/good = 910
Average NOS rating = 1365

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