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(1) Tested Motorola 12SN7GTA Tube Copper Grid Posts Black Plates 58-26 12SN7 GT

(1) Tested Motorola 12SN7GTA Tube Copper Grid Posts Black Plates 58-26 12SN7 GT

Tested and Guaranteed

$18.95 USD
$18.95 USD
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(1) Tested Very Strong Motorola 12SN7GTA Tube.
Date Code 58-26.
The 188 EIA code indicates that this tube was made by GE for Motorola.

Gray plates with copper grid posts and a side horseshoe getter.

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

Gm Test = 3125-3250 micromhos
Minimum pass/good = 1650-1650

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