Admiral 21F1 HV issues

[zenith2134]

Hello.

I have a very nice 21F1 chassis with good cabinet and crt but no HV. The 1B3 doesn't even light. I have swapped out the damper, horizontal tubes, and 1b3 to no avail. The previous owner did extensive recap work to the underside and I doublechecked all of those connections which are all good. (In fact, it was a very clean job!)

Next I'm going to swap out the HV transformer since I have an identical 21F1 with no vertical sweep. (needs re-capping).

The service manual only suggests which tubes could cause this, and I changed those out already. Anyone have a set with this chassis?