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(1) Tested Reliable 12AU7 Tube Code 743 Gray Plates Horseshoe Halo Getter

(1) Tested Reliable 12AU7 Tube Code 743 Gray Plates Horseshoe Halo Getter

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$14.95 USD
$14.95 USD
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(1) Tested Reliable 12AU7 Tube.
Date Code 743.
Gray plates with a halo horseshoe 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 = 2900-2700 micromhos
Minimum pass/good = 1400-1400
NOS Target Value = 2100-2100

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