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(1) Tested Philco 6BD5GT Tube Code 53-21 Sylvania EIA Beam Power Pentode Tube

(1) Tested Philco 6BD5GT Tube Code 53-21 Sylvania EIA Beam Power Pentode Tube

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(1) Tested Philco 6BD5GT Tube.
Date Code 53-21.
The 312 EIA code indicates that this tube was made by Sylvania for Philco.

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 = 5250 micromhos
Minimum pass/good = 3150
NOS Target Value = 4725

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