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Classic Currents

(1) Tested 1955 Tung Sol 117L7/M7GT Tube Code 544 Rectifier Power 117L7 M7 GT

(1) Tested 1955 Tung Sol 117L7/M7GT Tube Code 544 Rectifier Power 117L7 M7 GT

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(1) Tested Tung-Sol 117L7/M7-GT Tube.
Date Code 544 (44th week of 1955).

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

Gm Test = 4300 micromhos
Minimum pass/good = 2500
The rectifier section tests at 1550 where 800 is minimum pass/good.

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