[VintageRocks]

I am still learning to read the schematics and this one is not that easy. Looking at some videos and images people have posted that it does not seem exact to mine. In fact a lot of the same model Zeniths I have worked on that still have factory components are just a little different. I guess that goes to the manual manufacturing of the day when everyone put their own experiences into it.

Will take a look at what you suggested and hopefully find some more data.

Thanks again!