Hi New to the Forum. Restoring a 1958 RCA Deluxe TV. Quick question..

[Victrolaman]

Hi Yes thats it Sync Stab i thought that was a R sync star Great that makes sence then.
So what would cause the white line going across the screen?
what does noise look like on the screen? would it be wavy and a distorted picture? again im not a tech im just a guy who has a nice vintage TV that he wants to restore
Does anyone have a picture they can post of what a screen looks like, what does overloading look like? i ask because maybe someone tiouched that and thats what causing the wavyness and the thin light line going accros the middle, or i can post a ic and you can see it do it.

Originally Posted by Kevin Kuehn

Hi,

I think the control you're referring to is the Sync Stabilizer(marked SYNC STAB on the chassis). It's also sometimes referred to as the noise limiter control. That control adjusts the signal to noise ratio of the sync pulse going to the vertical and horizontal sync circuits. Generally you adjust it until overloading is observed in the picture, then back it down until overloading disappears. Sort of works in conjunction with the AGC control.

Agree with Eric, all paper and electrolytic capacitors should be replaced. A bit of a chore on those sets because of the limited access to the back side of the printed circuit boards.

[Kevin Kuehn]

Personally I wouldn't mess with those rear chassis controls until mentioned capacitors have been replaced. Left as-is it's an accident waiting to happen. Old capacitors can sort of work, but not reliably.
Some of the waviness you mention could be from power supply ripple caused by bad power supply filter caps.

[Kevin Kuehn]

Here you go. http://antiqueradio.org/recap.htm

Phil's site has lots of good info on what you're up against.