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(1) Tested Very Strong Arcturus Type 51 Tube Blue Arcturus 551 Tube Tetrode (c)

(1) Tested Very Strong Arcturus Type 51 Tube Blue Arcturus 551 Tube Tetrode (c)

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$34.95 USD
$34.95 USD
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(1) Tested Very Strong Arcturus Type 551 (Type 51) Blue Globe Balloon Tube.

This tube tests above NOS specs.

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

Test Result = 1250 micromhos
Minimum pass/good = 640
NOS Target Value = 960

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