1968 Zenith 20Y1C50 chassis - advice needed

[joe111671]

Wow this thing is a basket case. I was going to adjust the HV to 25KV as it says on the label at the HV adjustment. My probe goes up to 30KV, and the HV buried the meter (with the brightness all the way down). The label says to use a rounded tapered tool such as a wood pencil to adjust it. I sharpened a pencil, tried to turn the pot and it won't budge.

So I was looking closely at both sides of the pot to try and figure out how to get it to turn, and found a charred resistor R44 on pin 3 of the HV regulator. It's supposed to be 1000 ohms and it measured 19 ohms with the tube out. Plus a chunk of it fell off while I was probing it.

I guess I'll replace the resistor, then try to break the HV adjustment pot free if needed. Has anyone run into this situation? I'm guessing this is why the HV is way too high.