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Philco model 90 Power Transformer
Arran
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#4

03-24-2018, 05:41 PM
It's usually pretty easy to figure out which winding is which, especially with a modern DMM, the lowest resistance winding is going to be the 2.5 volt one, followed by the 5 volt, then the primary, then the highest resistance winding is going to be the H.V winding. There may actually be two 2.5 volt windings, one for the power output tubes, and the other for the rest of the set, the one for the power output may have a center tap in it, or a large center tapped resistor across the winding, I'm not sure how Philco wired these off hand.
Regards
Arran
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RE: Philco model 90 Power Transformer - by KCMike - 03-24-2018, 04:20 PM
RE: Philco model 90 Power Transformer - by Arran - 03-24-2018, 05:41 PM



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  1. The PHILCO Phorum
  2. Philco Radio Discussions
  3. Philco Electronic Restoration