I've tried fine tuning the signal as much as I can and I still can't get it any better. I changed the output of the VCR from channel 3 to 4. When I changed channels up and down away from the modulated channel I noticed that when I was one channel lower I got strong audio but not picture. One channel higher gave me neither sound nor picture. Maybe I'll take the tuner apart and give it a good cleaning. I did notice some things tonight that I thought I'd share. The set can only lock onto a picture when the horizontal frequency slug is 1/8 of a turn from completely out or 1/8 of a turn from completely in. When it is in that position, although the picture locks on, the horizontal does not fill the screen. I removed the resistors we had in place on the horizontal output tube to reduce voltage to the 1X2 to see if that would A. bring the picture back to full horizontal and B. cause the 1X2 to spark again now that the frequency was so different. It did succeed in making the horizontal size increase somewhat, although not back to full screen. The set is now also back on full line voltage without the additional resistors on the horizontal output tube and there is no sparking problem in the 1X2. I also went back to the video generator to see if I could get the set to lock on to a pattern now that the horizontal frequency is where it wants it to be. I injected at the point where M4 would connect. After much adjustment the picture below is the best that I could tune it in.
