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(1) Tested Motorola 12SN7GT Tube Black Offset Plates Date Code 5-17 12SN7 GT

(1) Tested Motorola 12SN7GT Tube Black Offset Plates Date Code 5-17 12SN7 GT

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$14.95 USD
$14.95 USD
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(1) Tested Motorola 12SN7GT Tube.
Date Code 5-17.
The 274 EIA code indicates that this tube was made by RCA for Motorola.

Black 3 staggered plates with a bottom square D getter.
The wording on the base is faded but still legible.

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

Gm Test = 2475-2250 micromhos
Minimum pass/good = 1650-1650

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