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(1) Tested Philco 0D3 Tube Code 5547 Double D Getters Voltage Regulator Tube (a)

(1) Tested Philco 0D3 Tube Code 5547 Double D Getters Voltage Regulator Tube (a)

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$14.95 USD
$14.95 USD
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(1) Tested Philco 0D3 Tube.
Date Code 5547.
The 312 EIA code indicates that this tube was made by Sylvania for Philco.
Double D bottom getters.

Tested on a calibrated Hickok TV-10 military tube tester with no shorts at 1650 where 800 is minimum pass/good.

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