Picked up an RCA CTC17 console

[Electronic M]

You could strip the rubber tire off scrape the carbonization off,and use the pressure cooker full of molten wax and vacuum pump method to try and save that fly(like in a youtube video one of our members made)...Just don't do it anywhere near Boston...

[rcaman]

i have a flyback. nice find. steve

[rcaman]

i also have the knobs. steve

[marty59]

Originally Posted by DaveWM

hey old coot, how did the color of the brand new 25AP22's compare to the brand new roundies back when new?

I hope you don't mind me chiming in but I can answer. The phosphor was the same in the later roundie and early 23V tubes such as when RCA came out with their "Hi-Lite" series. You take an RCA CTC-16X next to a '17 and you would get that quote: "glorious lollypop color" (thank you Sandy!). With the exception of added pincusion circuitry you're practically looking at the same chassis design.
Granted, Pincusion Correction would not always be perfect, and some sets were worse than others and mostly noticable at the top of the raster with words scrolling upwards.

Even the clone chassis's were converted to support the 25AP/XP22 tube for many TV brands. I worked on a lot of those sets in which I would have been proud to have called my own!

IMHO RCA was really on top of the their game before they got crazy with 6GH8's!

[hi_volt]

Love it. I recently acquired a CTC-17 combo unit, which is in the process of undergoing a cabinet resto. The red end cap on the CRT is indicative of a colorama replacement. I've got the same thing on my set. Looking forward to seeing your set (and my set) come back to life.

[old_coot88]

Originally Posted by DaveWM

hey old coot, how did the color of the brand new 25AP22's compare to the brand new roundies back when new?

(Sorry i missed your post earlier.) There wasn't anything strikingly different in the color rendition 'tween the Roundies and the first rectangulars. Nothing like the knock-your-socks-off reds and oranges in the 23" Motorolas with that crazy gated-beam demodulator.

[wiseguy]

since this is a 23" set, when did they come out with 25" version? I thought a 25AP22 was a 25" diagonal Tube..? unless it was marketing

[mstaton]

The 25AP22 is just a 23" viewable. The 25V series is a real 25" crt. I have a '67 admiral with that CRT and it boasts 25" on the front. I replaced the crt with a 23V and fits perfect. It's close to 25" if measured from corner to corner with the crt removed

[radiotvnut]

Just for the heck of it, I pulled the HOT and applied power. I heard the degaussing coil for a second and then the circuit breaker tripped; so, time to track down the short. Likely a diode, cap, or maybe the torched flyback. I reset the CB and it did the same thing; so, I'm not powering it up again until I trace out what's shorted.

[DaveWM]

I had a CTC-16 with a shorted Vert Out trans that did that. Pulling the convergence plug would clear the short at least to test it. B+ rail was like 1000 ohms.