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(1) Tested Philco Type 37 Tube Date Code P6 Engraved Base Medium Mu Triode Tube

(1) Tested Philco Type 37 Tube Date Code P6 Engraved Base Medium Mu Triode Tube

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(1) Tested Philco Type 37 Engraved Base Tube.
Date Code P6.

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 = 1100 micromhos
Minimum pass/good = 570
NOS Target Value = 855

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