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(1) Tested Arcturus Type 58 Tube Shouldered Arcturus Blue Pentode Tube (b)

(1) Tested Arcturus Type 58 Tube Shouldered Arcturus Blue Pentode Tube (b)

Tested and Guaranteed

$32.95 USD
$32.95 USD
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(1) Tested Arcturus Type 58 Tube.
Shouldered blue envelope.
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 = 1500 micromhos
Minimum pass/good = 900
NOS rating = 1350

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