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Classic Currents

(1) Tested Sylvania 6GK5 6FQ5A Tube with Box Date Code aj ADF 6GK5 Tube

(1) Tested Sylvania 6GK5 6FQ5A Tube with Box Date Code aj ADF 6GK5 Tube

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(1) Tested Sylvania 6GK5 6FQ5A Tube with Original Box.
Date Code aj ADF.

The box has a small bit of writing on one panel - see photos.
The tube number is not present on the tube but all other info is.

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

Gm Test = 8875 micromhos
Minimum pass/good = 6000

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