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(1) Tested Raytheon 6AM8 Tube with Box Date Code 539 Diode Pentode Vacuum tube

(1) Tested Raytheon 6AM8 Tube with Box Date Code 539 Diode Pentode Vacuum tube

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$7.95 USD
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(1) Tested Raytheon 6AM8 Tube with Original Box.
Date Code 539.
There is a small bit of marking on the top and bottom box tabs/flaps.

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

Gm Test = 6250 micromhos
Minimum pass/good = 3150
The diode sections tests at 1125 where 800 is minimum pass/good.

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