My Brand New CTC-7!

[roundscreen]

At some point you will have to check the horz output tube cathode current.

[SwizzyMan]

That makes me very happy! You have been a BIG help roundscreen you helped me with my major horizontal problem and making sure my set will last me for years to come I just want to say a huge thanks to you. I will be sure to report back on my bucking transformer tomorrow or variac if I can get it cheap.

[SwizzyMan]

Will tackle that tomorrow. Might need a bit of help with that.

[SwizzyMan]

Originally Posted by SwizzyMan

What about the ampereage? That one runs at 3 amps is that ok?

Back to my previous question... Is 3 amps ok in the transformer I will use for bucking?

[old_coot88]

Yikes! I didn't notice the xfmr you were looking at is only rated at 3 amps. No, that would give it very little 'headroom' since the TV draws pretty close to 3 amps.
You may not need bucking at all. First measure the heater voltage as Roundsreen suggested.

[SwizzyMan]

Well against my better judgement on money I just decided to get a variac. It is safer and a lot less complicated. Horizontal hold for the first 10 minutes is still a problem. But at least I am being nice to the set and giving it proper line voltage. Going to refinish the cabinet tomorrow.

[SwizzyMan]

Ok this horizontal hold problem is really starting to piss me off. I have to wait at least 20 minutes before I can use the damn thing. This has plagued me since the start of this restoration and quite frankly I am sick of it. I've replaced all but one capacitor on the horizontal board it is a ceramic cap. Heater voltage on 6CG7 is fine. I want this fixed for good. How can I do this? Please help!

[tvcollector]

I thought it went away after you replaced the mica caps.. Now it's back?

[SwizzyMan]

At first it was good but now it is terrible it has been about a week since I replaced all but one mica cap

[DaveWM]

did you ever check that resistor I mentioned pages ago?

[roundscreen]

Originally Posted by SwizzyMan

Ok this horizontal hold problem is really starting to piss me off. I have to wait at least 20 minutes before I can use the damn thing. This has plagued me since the start of this restoration and quite frankly I am sick of it. I've replaced all but one capacitor on the horizontal board it is a ceramic cap. Heater voltage on 6CG7 is fine. I want this fixed for good. How can I do this? Please help!

Sorry I was not around yesterday, A good friend passed away.
If you start getting pissed off, Take a break from the set. The problem may be you replaced a mica cap with a ceramic cap. Try and find a film cap and replace it again. Double check your work. See if you missed something. Also can you adjust the horz hold to a normal picture when the set is cold? Most of us have been through the same thing, So you are not alone. It takes time to learn how to fix vintage TV.

[SwizzyMan]

Very sorry about your friend I still want to continue with the set I was just a little frustrated last night with other problems. I will check if I used Micas in the right place and ceramics in the right place. Can get a somewhat stable lock but my color goes all wonky. Also the picture swerves from left to right. Eventually I get full lock and great color after about 20 minutes of running the set.

[SwizzyMan]

Yes Dave the 68K resistor checked fine when I tested it with one leg unsoldered from the board.

[SwizzyMan]

Turned the set on today and it took a little less than 5 minutes to get full hold and great colors. Is it slowly fixing itself maybe?

[DaveWM]

sometimes things get better with use, I have heard theories that could be moisture being driven out with heat. So try using it and see if it continues to improve.

If not, you need to determine if its an osc prob or a sync pulse prob.
you could try monitoring the voltages of the sync sep tube to see if anything is changing from when 1st turned on to when it settles down.