Another Zenith rescued from the dumpster

[polaraman]

That is a Thordarson Y 108. I wish the Tv shop was closer to me and Charlie is bobbing out in the ocean right now. There was 5 or 6 Zenith rectangular consoles up in the attic of the TV shop. Two of them had power tuning. There also was a 19" Zenith wood cabinet mini console. Charlie will be back the middle of next month. If the Tv shop is still there he can go check.

I do not have a spare Y108.

You can also call Moyers in the morning.

polaraman

[polaraman]

I need to back peddle here. I went back and read the whole thread. I have a Zenith yoke but do not have the numbers. 109 does your Zenith yoke have a white 7 pin connector attatched to it? Are there any numbers stamped on the back of the yoke?

Mine has 7084?6
286638

Any help from the rest of the members?


polaraman

it had the 7 pin molex on the flying leads much like your attachment and the schematic calls for a 95-2500 zenith, Y-108 Thordarson and YC-310-2 Triad part number. I did look at the schematic for the admiral donor set and the illustrated resistances are the same and being NTSC with similar voltages through the chassis I would imagine the impedance is pretty close to the same. I didnt have to do any changes to the set itself other than adding the snubber caps to the vert section to cancel out cross inductances within the yoke itself, these as I found out were my doing because of my wire routing.
Convergance is much better now that I made my own diode stack and the blue fell into place thanks to a faster rectifier and replaced resistors.
Last issue is the color side of things, has a tendancy to green shadow fleshtones and the chroma phasing is a bit off causing saturated colors to run, looks more like a loss of high freq video thats making it to the 1st chroma bandpass amp, will deal with it on the scope.

Thanks you guys
109