Quote:
Originally Posted by Penthode
I suspect the transformer is in the chroma signal path as per the diagram in the attached article?
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Actually it's closest to the subcarrier oscillator, so right now my assumption is if flips the reference signal 180 degrees on alternating fields for R-Y. Only time will tell for sure, this coming weekend we are hoping to delve into the demod sections in order to figure it out. Tim did spot an odd part that I hadn't previously seen: right near the CPA tranformer hidden under some variable capacitors there is a toroid with 2 or 3 windings on it. It's about an inch and a half in diameter, and looks to have something like #30 wire wrapped around it. We have absolutely no idea what its purpose could be.