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(1) Tested Raytheon 7F8 Tube Dual Triode Loctal Tube Twin Triode Vacuum Tube

(1) Tested Raytheon 7F8 Tube Dual Triode Loctal Tube Twin Triode Vacuum Tube

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(1) Tested Rad-Tel 7F8 Tube.

The wording is mostly worn off of the glass but enough of it remains to be recognizable as Raytheon branded.

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 = 6750-6500 micromhos
Minimum pass/good = 3150-3150
NOS Target Value = 4725-4725

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