1959 zenith has no horz. hold?

[radiotron]

Originally Posted by dieseljeep

It's been ages since I worked on one of those. I don't have a schematic in front of me, so I cant comment much. Does that chassis use the dual phasing diode? It's a tiny black plastic three lead component.
If it has one of those, it's a strong possibility, that's your problem.
In your reply, include the chassis number.

is this the chaissis?
its on a green sticker that says 16e21?
on the back it says super h-20 chaissis
can someone show a picture of this dual phasing diode, becouse next to horz. tube on the scamatic it talks about some kind of diode