She's a runnin, kinda

[freakaftr8]

Ok cool! well I had my suspicions on that 6GH8 as well so I did change it, no difference, the 390v source is stable, I looked at that 680 ohm resistor, It doesn't look happy! Im going to change it out! This might be it!

I got another issue... I just replaced the 2 tube sockets that were cooked, they are the 7 pin sockets for the 6GY6 demods. Now one of the tube heaters will not light up, (possibly due to the old pin was bent over touching pin 2 or a resistor located next to it) Checked soldering with ohm meter and it's good, so I looked under the board and pin 3 solder trace looked bad and broken, so I bypassed it with a wire to the correct source, still wont light up. Im trying to find out where the power for the heater on pin 3 comes from... Any ideas what to look for? I havent done too much research yet...

Originally Posted by Bill R

I think you have a U919 chassis. 214ma is normal for that set. Sams shows the Horiz hold pot to be a 35K pot. So soldering in a 35K resistor would be like having the control set at one end not in the middle. The control is probably ok. The horiz osc and afc circuit is powered by the 390V source. In fact there is 390V at one end of the hold control. There is a 680 ohm 1 watt resistor connected to the 30mfd filter cap in the 390V source that could be increasing in value as the set heats up causing the voltage to drop just enough to affect the horiz lock.
Your vertical problem could be a weak 6gf7 tube. I also notice the sync seperator tube is a 6gh8 just change it.

Bill R