Philco Roundie Hybrid

[DaveWM]

what bugged me was I had some NOS radio shack lifetime tubes (the 6gh8's) that seemed to cause the problem.

Now that I got a pic I will do a one at a time swap and see if its a particular tube.

another issue vert centering off, there is a pot that is labled vert centering. I figure is just bias the yoke, but have not traced the wiring yet. I will need to get a schematic of this chassis. if its a bias then I need to see what the B+ that feeds it should be.

Just for fun I will put the set on a variac, I have one that can handle the load. See what happens when changing the line voltage.

I has the orig can caps, maybe a weak one in the B+ doubler (again I am assuming it uses a doubler, there are a couple diodes in the PS, guess it could be a centertaped PT and a full wave rectifier). This set does not use a HV regulater either, almost a muntz color tv (I wonder if muntz ever did color?).