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Tested Matched Pair 1944 RCA USN CRC 446A Tubes Mil Spec Lighthouse Tube H6E (b)

Tested Matched Pair 1944 RCA USN CRC 446A Tubes Mil Spec Lighthouse Tube H6E (b)

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$19.95 USD
$19.95 USD
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Tested Matched Pair of RCA U.S.N. CRC 446A Lighthouse tubes.
Nicknamed "Lighthouse" tubes due to their shape.
Date Codes H6E (November to December of 1944).

Tubes are closely matched for mutual conductance (Gm), date codes and internal structure - they are identical.

Some tarnishing and light staining on the metal but nothing terribly dramatic.

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

Gm Test = 4150 and 4100 micromhos
Minimum pass/good = 1510

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