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(1) Tested Balanced GE 12SN7GTA Tube Gray Ladder Plates Date Code 5-09 12SN7 GTA

(1) Tested Balanced GE 12SN7GTA Tube Gray Ladder Plates Date Code 5-09 12SN7 GTA

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$14.95 USD
$14.95 USD
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(1) Tested Balanced GE 12SN7GTA Tube.
Date Code 5-09.

Balanced mutual conductance (Gm) with a side round getter and gray 4 hole ladder plates.

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

Gm Test = 2500-2500 micromhos
Minimum pass/good = 1650-1650

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