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Hickok AC51 tube tester
martinj
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#1

Yesterday, 12:25 PM
How does the  5W4 and 83 tube filaments get fed?


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DaleHCook
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#2

Today, 07:09 AM
Note that no power cord, power switch, or power transformer switch are shown. That (along with my experience with full schematics for other Hickok models) would indicate that the power transformer has individual filament secondary windings (which are shown) for those tubes
Dale H. Cook, GR/HP/Tek Collector, Roanoke/Lynchburg, VA
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RodB
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#3

Today, 10:37 AM
Absolutely no one is going to reverse engineer that circuit. Even the iron core is missing.
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morzh
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#4

10 hours ago
I think they have only shown the secondaries of the transformer.
Two of them feed the rectifiers' filaments.
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
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  1. The PHILCO Phorum
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