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(1) Tested GE 12AU7A Tube with Box Copper Posts Code 61-48 Gray Plates 12AU7 A

(1) Tested GE 12AU7A Tube with Box Copper Posts Code 61-48 Gray Plates 12AU7 A

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$18.95 USD
$18.95 USD
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(1) Tested GE 12AU7A Tube with Original Box.
Date Code 61-48.

Gray plates with copper grid posts and a round halo getter.
The wording is partially worn away but still recognizable.

This tube tests as NOS.

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

Test Result = 2600-2500 micromhos
Minimum pass/good = 1400-1400
NOS Target Value = 2100-2100

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