CTC16 Flyback Cooling

[Findm-Keepm]

Originally Posted by andy

Most RCAs have a high line voltage tap on the power transformer. There may be a switch, or it may just be tied off under the chassis. Selecting that should help a lot.

The CTC16 sets lack the line adjust switch - hence the variac. Nick (miniman82) runs all of his sets on a variac - I have a Sola conditioner that brings my high line voltage down, but only to my bench, so I use my VIZ Variable (metered) Isotap to bring it down for my CTC16 when I want to operate it.

As to the cathode current, 250mA is the absolute max, and no, I've never seen one run that high. At 110V, my CTC16 runs right at 200 - I remived the focus rectifier current from the flyback load, and will probably do the same for the 3A3, all in keeping the fly healthy.

Given the dearth of available flys for pre-CTC38 sets, there ought to be a "flyback health manual" we could create - lots of sets turning up that can be restored with the existing fly, and threads like this illustrate the need. Zeno, OldCoot, miniman82, andy - could all contribute greatly.