Rca 19"bw 1965 kcs 149aa video bars??

[Tom9589]

Barkhausen oscillation?

[damen]

Check the lead positioning of the CRT socket and yoke plug wires. Try moving them with an insulated tool and see if the bars move. I remember an RCA factory tip about a similar issue with some of their sets.

[Phil Nelson]

Originally Posted by Tom9589

Barkhausen oscillation?

That doesn't resemble Barkhausen interference that I've seen. My Hallicrafters T-67 showed a classic case of Barkhausen, a single squiggly vertical line running from top to bottom of the screen (right through the news lady's face, in this pic):



You can read more about Barkhausen in my T-67 restoration article:

https://antiqueradio.org/hallit-67.htm

Regards,

Phil Nelson
Phil's Old Radios
https://antiqueradio.org/index.html