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(1) Tested RCA 4EH7 LF183 Tube and Box Made in Mexico Code EL Pentode Tube (b)

(1) Tested RCA 4EH7 LF183 Tube and Box Made in Mexico Code EL Pentode Tube (b)

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$9.95 USD
$9.95 USD
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(1) Tested RCA 4EH7/LF183 Tube with Original Box.
Date Code EL. Made in Mexico.

The wording is partially worn but still legible.

This tube tests as NOS.

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

Gm Test = 3025 micromhos
Minimum pass/good = 1575
NOS rating = 2365

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