(1) Tested Sylvania JAN-CHS-7C7 Loktal Tube.
Date Code 9-13.
The wording is partially worn away but still legible.
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 = 1575 micromhos
Minimum pass/good = 820
NOS Target Value = 1230
~ Please view all 4 photos ~
