[Pete Deksnis]

Over the years, ten percent of the operational CT-100 sets I know of have exhibited this problem. In these sets, changing the crystal has thus far been ineffective. While the gremlin(s) involved is(are) not yet fully exposed, the IF strip is suspect.

Since poor tube-socket connections can drastically change the signal level from the video detector, I speculate that same type of anomaly could cause a tilt in the IF response that could result in a loss of chroma sync.

Here's what I did for the signal level problem: used a bottle of DetoxIT D100L and some nylon cleaning brushes (also gotten from Craig) to SCOUR each tube socket connector.

Since the loss of OTA NTSC color, I nearly exclusively jeep the signal and bypass any IF problems. But, during the final years of NTSC, I didn't again experience the chroma sync problem.