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(1) Tested National Union 70L7GT Tube Date Code 5226 Pentode Rectifier 70L7 GT

(1) Tested National Union 70L7GT Tube Date Code 5226 Pentode Rectifier 70L7 GT

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(1) Tested National Union 70L7GT Tube.
Date Code 5226.

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

Gm Test = 5000 micromhos
Minimum pass/good = 3150
The rectifier section tests at 1525 where 800 is minimum pass/good.

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