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(1) Tested GE Mullard Blackburn 6DX8 ECL84 Tube with Box Etched Code B61L1

(1) Tested GE Mullard Blackburn 6DX8 ECL84 Tube with Box Etched Code B61L1

Made in Great Britain by Mullard for General Electric

$12.95 USD
$12.95 USD
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(1) Tested GE Mullard 6DX8/ECL84 Tube with Original Box.
Etched Date Code B61L1 (Blackburn Factory). 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 = 7250-2000 micromhos
Minimum pass/good = 4700-1300

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