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(1) Tested GE 12BQ6GA/12CU6 Tube Date Code 58-43 12BQ6 GA Tube 12CU6 Tube

(1) Tested GE 12BQ6GA/12CU6 Tube Date Code 58-43 12BQ6 GA Tube 12CU6 Tube

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(1) Tested GE 12BQ6GA/12CU6 Tube.
Date Code 58-43.

Tested on a calibrated Hickok TV-10 military tube tester with no shorts and no leaks with the following results:
Gm Test = 4400 micromhos
Minimum pass/good = 2800

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