[jeyurkon]

I powered the TV up tonight. I checked out the FM receiver first and it sounds great! I need to make a loop antenna for the AM. It can't work without it. I tried anyway and all I heard was my neighbor's SSB transmission.

I then checked out the TV. I was surprised to get a raster let alone an image. I was very happy the the HV section was working because there were quite a few bad components that I had to replace.

I had to readjust the Horizontal frequency coil by about 15 turns to get it to get this close.

There is no audio on TV. But that's a pretty small section to look at so I don't expect it to be too difficult to fix.

Anyway, the image is below. All the major components are working so I should be able to fix the remaining problems.

Actually the main problem probably is that I wanted to try to keep the selenium rectifiers. They seem to test good, turning on at 6 volts and having zero reverse current at 100 volts. The low reverse current was pretty unusual.

They seemed fine until I plugged the HOT, VOT, and RF HV Osc tubes in. Then there was a 40 volt drop and the seleniums started to get warm. I was going to use NOS ones that I have, but they have a high reverse current.

As much as I like playing with old technology like selenium rectifiers, I'll have to give up on them.

Going to 1N4007's will bring the -90VDC up to -130VDC and may solve some of the apparent problems. That's not related to the sound though.

I may have to do a complete horizontal alignment since I replaced all the caps in that section.

I was very happy to see it do this much!

John