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One 38-690 field coil much hotter
FStephenMasek
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Posts: 234
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Joined: Mar 2008
City: Mission Viejo, CA
#1

10-21-2014, 11:16 PM
Does one tweeter field coil on your Philco 38-690, or ones you have worked on, run much hotter than the other?  I was working on the alignment after cleaning the chassis today and noticed this.  I found that it is the tweeter field coil which carries the current which goes through the main speaker field coil to ground.  What do you think?  Here is the schematic:   http://www.nostalgiaair.org/Resources/255/M0013255.htm
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  1. The PHILCO Phorum
  2. Philco Radio Discussions
  3. Philco Electronic Restoration