[Charlie]

Rich, I like looking at the screen with Bewitched playing because the older shows used good lighting and a contrasty environment which shows a good picture on a B&W TV. Also, it seems while making these old shows, they kept in mind that some people were still watching porthole sets from 15 years prior. Even in scenes with two or more people, they're all seen on the screen. You don't really lose anyone in the corners.

Cliff, thanks for the pointers on the retrace lines. I'll dig around for a 100K pot and try your suggestion. Right now, I'm thinking I still have retrace lines since the brightness seems to be way up (no control of it) and I think once I can turn it down some, those lines will fade away.

As far as brightness control, it seems the pot fails to function correctly. I thought I had checked it earlier, but, I either didn't or made a mistake.

I haven't played with it in the past couple of days due to a visitor, but I've things got a little better right after my last post. In the IF section, I found the resistor on pin 7 OF ALL FOUR I.F. TUBES had gone up considerably. Three of them were supposed to be 82 ohms... and they gave me readings of 200-250 ohms. The last one was supposed to be 68 ohms and instead read 125 ohms. Being that EACH ONE was off, i thought I was somehow making a mistake. I even got my other meter to double check. After changing them, the picture got stronger.

I also changed about two dozen other resistors that were 20 percent or more off spec. A 5 watt resistor in the damper area jumped way up in value. Things are very gradually getting better.

I found another modification... someone tied a couple of resistors between the tuner and IF... one of them going to ground. Before realizing these weren't supposed to be in there, I was chasing funky readings in the IF and AGC. After isolating the two sections, I found the funky readings only in the IF and started digging around there... when I noticed two resistors that weren't in the schematic. I removed the resistors and didn't notice any change in the picture.

Over all, I'm pleased that things are gradually improving. This set must have had a lot of hours on it. My Diamond D was the same way... lots of resistors to change!