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(1) Tested Westinghouse 6SJ7 Tube Code 8R04 6SJ7 Sharp Cutoff Pentode (b)

(1) Tested Westinghouse 6SJ7 Tube Code 8R04 6SJ7 Sharp Cutoff Pentode (b)

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(1) Tested Westinghouse 6SJ7 Tube.
Date Code 8R04.

The wording is faded but still legible.

This tube tests as NOS.

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

Gm Test = 2000 micromhos
Minimum pass/good = 1040
NOS rating = 1560

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