Nick Williams has mentioned time and time again that these sets need to be run between 115 VAC and 117 VAc to avoid stressing components, and I wholeheartedly agree with him. If you dial back the line voltage, a CTC-7 will run forever and a day without popping a 5U4, or worse, a flyback or some other unobtainable part. I use a 500 VA Sola CVT for the job. I get a rock solid 117 VAC regardless of what Detroit Edison is doing.
It's a 10-15 minute job to properly adjust the horizontal drive control, linearity slug, and HV adjustment control, but few people take the time to actually do it. Recapping is not enough. A happy horizontal section is less likely to nuke a flyback...
|