Hoffman 610 Lost B+

[Doug66]

I'm back in business, sort of. Before I acquired this set, the member I got it from warned me ahead of time that a mouse had been inside the cabinet on top of the chassis. The mouse had peed all over the IF board leaving that part of the chassis rusty and corroded.

I had tried cleaning that part of the chassis with various rust cleaners and steel wool. Either the mouse pee had corroded some of the tube sockets or maybe a combo of the steel wool and cleaners shorted something.

With everything connected, I would get an arch in certain tube sockets, and several 1K resistors fried. After replacing 4 tube sockets, my voltages are back to normal. However, I've lost vertical as my raster has come back to just a line. I'll start troubleshooting the vertical now then continue loking into why no signal is coming thru.