My Brand New CTC-7! - Page 15 - Videokarma.org TV - Video

SwizzyMan · #1 08-23-2015, 04:09 PM

Just got done staining the cabinet. Looks so much better than it was when I got it down in south Florida (Thanks again Tvcollector!) going to use some brushing shellac on it tomorrow and call this project pretty much done. Also, how much would a electronically restored and cosmetically restored ctc-7 pensbury with a good 21CYP22 sell for? I have no intentions of ever selling this set anyways just curious. Is a ctc-7 pensbury a rare set?

stromberg6 · #2 08-23-2015, 04:31 PM

Quote:

Originally Posted by SwizzyMan

Just got done staining the cabinet. Looks so much better than it was when I got it down in south Florida (Thanks again Tvcollector!) going to use some brushing shellac on it tomorrow and call this project pretty much done. Also, how much would a electronically restored and cosmetically restored ctc-7 pensbury with a good 21CYP22 sell for? I have no intentions of ever selling this set anyways just curious. Is a ctc-7 Pensbury a rare set?

Don't really know how "rare" they are, but I've only seen one in person, owned by a friend, and completely original. needs full restoration now, but performed well until last year. Very pretty fruit wood (? could be walnut, but light in color) cabinet, and a bright pic on original CRT.
I have an Anderson in blonde that I restored many years ago, and now need to do it again. Have a "tests new" 21CY ready to go.
Wishing you continued luck with your Pensbury! CTC-7s are good chassis, and will hold convergence due to the wire-wound pots IMO.

Kevin

SwizzyMan · #3 08-23-2015, 04:38 PM

Thanks Kevin also best of luck to you restoring your ctc-7 again!

MRX37 · #4 08-25-2015, 08:38 PM

I don't see a convergence issue, at least not one worth stressing yourself out over trying to fix.

If you wanna be a perfectionist the image still looks slightly tilted.

It sounds great, even through your camera's microphone.

Also, vertical video... ugh

tvcollector · #5 08-26-2015, 08:50 PM

I think 178ma is fine, most of the 60s sets are usually around the 200 mark or below.. after 210 or 215, then it gets into the high range and will cook the flyback eventually.. Yours only spikes up for seconds upon turning on, and I think that's normal..

SwizzyMan · #6 08-26-2015, 09:13 PM

Yet another issue. Put the chassis back in (which was hell) and now I am having signal problems. I'm getting the weird tuning beeps and squeals and everything is covered by a shade of green.

Phil Nelson · #7 08-27-2015, 12:05 AM

It worked beautifully not long ago. Look for obvious stuff first. Wiggle tubes, starting with the tuner and working forward along the signal chain through the IF section, and so on. Look for wires you might have knocked loose when removing or reinstalling the chassis, etc.

Phil Nelson

SwizzyMan · #8 08-27-2015, 06:27 AM

OK well the 6AW8A on the agc board is not even glowing I wiggled it around a bunch, still nothing tried swapping with a known good tube still nothing. Could I have broken the socket? And is that tube the reason for the bad signal and green tint to everything?

Zenith26kc20 · #9 08-27-2015, 10:45 AM

The boards on the RCA color run hot. If subbing the tube does not help, it may be the solder connections under the tube socket. If you do pull the chassis again, resolder the 6AQ5 vertical output socket pins. The 6AQ5 runs very hot and those connections can be troublesome. The strange thing is the 6AW8 is first video/AGC. I would think no picture if it is not lighting.

Electronic M · #10 08-28-2015, 07:41 PM

delete

SwizzyMan · #11 08-28-2015, 07:55 PM

OK got it back in the cabinet tuner is crystal clear but now I dont have full vertical height and there is a vertical fold on the top of the vertical hold. The fold is about maybe 2 inches. I dont know what is happening now. I replaced the 6AQ5A tube but still no luck

SwizzyMan · #12 08-29-2015, 07:58 AM

Alright was able to fix the vertical folding problem. But now I cant get any color!

What now?

DaveWM · #13 08-29-2015, 11:14 AM

what was wrong with the vert? convergence board not plugged in?

wiggle color osc tube, make sure all tubes lighting in color section, adj fine tune.

Phil Nelson · #14 08-29-2015, 11:23 AM

I wonder if you have one or more funky sockets on the boards. That is suggested by an old jumper to a socket pin. Sometimes resoldering pin connections on the sockets can help. Obviously, you want to be delicate with any work on those boards, to avoid lifting traces, etc.

I am curious how you fixed the vertical problem. Intermittency (fixed by wiggling tubes) also suggests bad socket-to-board connections, or simply a bad socket.

Sometimes you can improve sockets by cleaning the devil out of them or (carefully!) bending the metal inside the socket holes to make better connections.

Phil Nelson

SwizzyMan · #15 08-29-2015, 11:42 AM

Will go through and resolder all the sockets. And I forgot to mention Dave I did indeed forget to plug in the convergence board my bad. Only problem is my horizontal hold knob is stuck on the shaft. Will heat it up then pull the chassis out for hopefully the last time. Note I did lose color after cleaning the tuner. Could I have messed up something in the tuner causing no color? All I did was go over the copper coils and other moving parts with a q-tip dipped in deoxit.