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Classic Currents

(1) Tested RCA 13FM7 15FM7 Tube with Box Date Code NR AAH Oscillator Amplifier

(1) Tested RCA 13FM7 15FM7 Tube with Box Date Code NR AAH Oscillator Amplifier

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(1) Tested RCA 13FM7/15FM7 Tube with Original Box.
Date Code NR AAH.

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:

RCA = 94-100

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