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Classic Currents

(1) Tested Sylvania 6J10/6Z10 Tube Date Code dg Sylvania 6J10 Tube 6Z10 Tube

(1) Tested Sylvania 6J10/6Z10 Tube Date Code dg Sylvania 6J10 Tube 6Z10 Tube

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(1) Tested Sylvania 6J10/6Z10 Tube.
Date Code dg.

The wording is partially worn away from the glass but the name is still legible. See test result below.

Tested on a calibrated Knight KG-600B tube tester with no shorts and no leaks where 50 is minimum pass/good with the following results:

Sylvania = 76-92

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