No Horiz Oscillator on Zenith Porthole- Solved!

[DavGoodlin]

Can you check resistance on V22 6K6 pin 5, then rotate the hold control to see if the range is within tolerance?
The 6AC7 could be pulled to see if the AFC stage is loading and stopping the oscillator, or what else is connected to V22's cathode.....

No experience on early Zenith, just wondering.

[Eric H]

Originally Posted by DavGoodlin

Can you check resistance on V22 6K6 pin 5, then rotate the hold control to see if the range is within tolerance?
The 6AC7 could be pulled to see if the AFC stage is loading and stopping the oscillator, or what else is connected to V22's cathode.....

No experience on early Zenith, just wondering.

I've checked the hold control and it seems fine, I've also disconnected every other connection to the grid on pin 5 (one at a time) to see if something was killing it.

The Cathode is on pin 8 and the .6 is very close to what Sams calls for .4 I think?

I suppose it might be a good idea to check the resistances against what Sams says and see if anything stands out.