RCA CTC...Something? poor HV output.

[Arcanine]

Originally Posted by Findm-Keepm

And I've used RTV many times for corona prevention before - but conductive tracking does occur, and only at high voltages - where the RTV was heat cured and paths for corona were created.

I've serviced TVs since the 70s, dealt with corona and arcing in 55KV AWG-9 radar transmitter power supplies, 16KV Conrac monitor power supplies, and solved many problems with RTV. But in my humble 30+ years in electronics, I've seen RTV'd flys fail just as often as the originals, and mostly due to the carbon tracks - their death certainly created by heat or disturbed curing. RTV has such a strong dielectric strength that 1/20" will seal against corona in a 50KV system, but one tiny (electron wide) hole is all it takes to fail. Patience and curing at room temperatures, with no disturbance for the allotted time is all that is needed for success.

Now with ATS (Activation Temperature Sensitive) silicone (similar to RTV) products, the crap won't cure without heat, and at a prescribed temperature. I've use it as well - aerospace stuff - we can't afford it - but take some good old RTV3145, the good grey stuff, simply apply and let it cure, no heat. No reason to bake out bubbles that leave a tunnel behind as they head for the surface, setting up a corona/burn path....

Remember, we're trying to save flybacks, not guarantee a kill....

But i digress, it's not my flyback.

I have my fingers cross that Tom did it well and no tracking happened.

You like the CTC16 chassis. Do their flybacks normally run a tad on the warm to almost hot side?