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Classic Currents

Tested Matched Pair RCA 5U8 Tubes with Boxes Codes DZ Triode Pentode Tube

Tested Matched Pair RCA 5U8 Tubes with Boxes Codes DZ Triode Pentode Tube

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$22.95 USD
$22.95 USD
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Tested Matched Pair of RCA 5U8 Tubes with Original Boxes.
Date Codes DZ.

Tubes are closely matched for mutual conductance (Gm), date codes and internal structure - they are identical.
The wording on one tube is partially worn but still very legible.
Boxes show areas of scuffing.

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

Gm Test = 3250-4000 and 3300-4175 micromhos
Minimum pass/good = 1420-2840

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