Looking for a replacement vertical output transformer for Admiral 20Z1

[rca21d645]

I am restoring an Admiral 12X12 television and after a few days of trying figure out why there was no vertical deflection, I figured out that the issue is the vertical output transformer. The part numbers for the transformer are as follows:
Admiral: 79B24-1
Stancor: A-8112
Merit: A-3036
Chicago: TSO-5
Thordarson: 26S51

If anyone has a vertical output transformer that they are willing to sell I would greatly appreciate it.

[rca21d645]

Here's a photo of what I'm getting on the tube. Audio comes through though, albeit a little weakly. I tested the height and linearity pots, replaced all the paper caps in the vertical, and tested each resistor and replaced the ones out of spec. I'm 99% sure the transformer is what's causing the issue as I also didn't get the proper values when testing it with my ohm meter. I also swapped the 12AU7 tube (which tested as good) with another good 12AU7 and that changed nothing.

[Kevin Kuehn]

Originally Posted by rca21d645

Here's a photo of what I'm getting on the tube. Audio comes through though, albeit a little weakly. I tested the height and linearity pots, replaced all the paper caps in the vertical, and tested each resistor and replaced the ones out of spec. I'm 99% sure the transformer is what's causing the issue as I also didn't get the proper values when testing it with my ohm meter. I also swapped the 12AU7 tube (which tested as good) with another good 12AU7 and that changed nothing.

What resistance readings did you measure on primary and secondary?

[rca21d645]

Originally Posted by Kevin Kuehn

What resistance readings did you measure on primary and secondary?

The secondary measured as 36 ohms and the primary wouldn't measure at all, like it was open.

[Kevin Kuehn]

Originally Posted by rca21d645

The secondary measured as 36 ohms and the primary wouldn't measure at all, like it was open.

OK an open primary is always bad.

[Kevin Kuehn]

Here's a picture of the transformer I have. It is a 20Z1 chassis. Can't make out the part # in the bright light but it is correct.

[Kevin Kuehn]

Originally Posted by rca21d645

I am restoring an Admiral 12X12 television and after a few days of trying figure out why there was no vertical deflection, I figured out that the issue is the vertical output transformer. The part numbers for the transformer are as follows:
Admiral: 79B24-1
Stancor: A-8112
Merit: A-3036
Chicago: TSO-5
Thordarson: 26S51

If anyone has a vertical output transformer that they are willing to sell I would greatly appreciate it.

I have an original on a parts chassis that I just measured as good. PM me if interested.