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Model 90 First Detector Transformer Info Please
wa5tbd
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#12

01-09-2015, 03:18 PM
(01-09-2015, 12:18 PM)klondike98 Wrote:  Unfortunately it doesn't seem anyone has the info you're looking for.  I found a video by Richard McWhorter that shows the coil.  From that and Chuck's info ... if the primary is 100 turns then the secondary looks to be approximately 250?? assuming its a single layer wrap.  I know there is a celluloid insulator between the two wrappings as well.  The direction of the wrap also makes a difference and I can't help there as I don't have a 90.  

You might try contacting Play Things from the Past.  He doesn't seem to have your coil listed but then I don't think he has everything listed.



Thanks a lot for taking the time to sniff out the video and pass along the information to me. Cheers. Brian
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RE: Model 90 First Detector Transformer Info Please - by wa5tbd - 01-09-2015, 03:18 PM
RE: Philco 14B speaker issue - by wa5tbd - 01-07-2015, 11:24 AM



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