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(1) Tested RCA 6FY5 EC97 Tube with Box Great Britain Code BQ High Mu Triode (a)

(1) Tested RCA 6FY5 EC97 Tube with Box Great Britain Code BQ High Mu Triode (a)

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$9.95 USD
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(1) Tested RCA 6FY5/EC97 Tube with Original Box.
Date Code BQ. Made in Great Britain.

Tested on a calibrated Hickok TV-10 military tube tester with no shorts and no leaks with the following results:

Gm Test = 12,250 micromhos
Minimum pass/good = 7250

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