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(1) Tested Sylvania 12AU7 Tube Copper Posts Gray Plates Halo Getter Code GF ACH

(1) Tested Sylvania 12AU7 Tube Copper Posts Gray Plates Halo Getter Code GF ACH

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$14.95 USD
$14.95 USD
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(1) Tested Sylvania 12AU7 Tube.
Date Code GF ACH.

Gray plates with copper grid posts and a top halo O ring getter.

This tube tests above NOS specs.

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

Test Result = 2800-2850 micromhos
Minimum pass/good = 1400-1400
NOS Target Value = 2100-2100

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