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(1) Tested Valvo ECL80 Tube Date Code HD4-7D Made in Germany ECL80 Vacuum Tube

(1) Tested Valvo ECL80 Tube Date Code HD4-7D Made in Germany ECL80 Vacuum Tube

Made in Germany

$9.95 USD
$9.95 USD
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(1) Tested Valvo ECL80 Tube. Made in Germany.
Date Code HD4-7D.

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

Gm Test = 2850-600 micromhos
Minimum pass/good = 1750-500

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