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(1) Tested Hytron 6SD7GT Tube Date Code 7-26 Triple Grid Amplifier Vacuum Tube

(1) Tested Hytron 6SD7GT Tube Date Code 7-26 Triple Grid Amplifier Vacuum Tube

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(1) Tested Hytron 6SD7GT Tube.
Date Code 7-26.

This tube tests as NOS.

The tube number is faded on the glass.
There is some small scattered ares of color loss on the metal base - see photos.

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

Gm Test = 3000 micromhos
Minimum pass/good = 1900
Average NOS rating = 2850

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