1959 zenith has no horz. hold?

[dieseljeep]

Originally Posted by radiotron

ok heres what i found.....
theres something called an AFC DIODE on the scamatic.
is that it?
if so then its soldered underneath the chaissis
white with a tan top.

That's it! I looked at the Sams. It's under the chassis in front of the 6GH8 socket. It's a common cathode type.
Every time I had problems with the horizontal hold and there was one used, that was the first item I replaced. It corrected the problem 90% of the time. I always carried them in my tube caddy.

[radiotron]

Originally Posted by dieseljeep

That's it! I looked at the Sams. It's under the chassis in front of the 6GH8 socket. It's a common cathode type.
Every time I had problems with the horizontal hold and there was one used, that was the first item I replaced. It corrected the problem 90% of the time. I always carried them in my tube caddy.

yep thats it! thanks!

[dieseljeep]

Originally Posted by radiotron

yep thats it! thanks!

I don't know why they used that type of component. It's a tiny selenium pack. I looked at my RCA CTC53 and it still uses one.
They might be still available, NOS. I also wonder if 1N4148 diodes can be used instead.