Thanks for the visual, that looks good. I think I've got a bug to try and install that today so I'll update with the progress!

Tube replacement done. I'm VERY happy with the results!

I had my younger sister Alex come over to the shop today and I showed her how to replace the tube. Thankfully after initial assembly, we had near perfect convergence which only required minor touching up. The CTC-9 lives!

My CTC-10 set came to me necked. The only CRT I had was an FBP22. Looks good!

good goood gooood!

Wow, really nice!!

now thats what i am talking about!look at that convergence.close as it gets.this is what we all strive for

Hey all! Hey Justin. That CTC9 looks awesome!!! So much better than the way it was when you picked it up from me! lol. It looks like you got convergence and purity almost spot on. Congrats, these early sets were a pain to try to converge. On the 10 I still have the brightner. Ill send it to you. I figured somthing was up when that brightner was sitting in the cabinet. I miss Scotty.

I had a chance to meet up with Justin a few weeks ago when he picked these sets up from me. And I gotta say what a guy! Like all the people I have met face to face on this forum, you are all great guys, very knowladgable and friendly.

Beautiful set, one of my favorite 9 cabinets! Great job Justin!

Wow, I should teach my sister how to replace a tube :D

Nice job!

-Clark

Thanks guys!

The CTC9 started having some horizontal issues today. Looks like after it warms up for an hour or two horizontal hold won't lock, it goes from out of sync with a turn of the hold control in one direction, to FAR out of sync to the point of chaotic resonance from the flyback and breakdown of horizontal scan right at the point where it should be syncing. Going to test tubes tomorrow.

Shawn, had you ever removed the chassis for service on this one? Just curious what I may find underneath. Wax caps or old orange drops? :tongue:

I need to take pictures of it with a newer video playing. American Graffiti is fun, but doesn't make for a great example of a clear picture. Playing a newer movie really shows how pristine that set can reproduce an image. It's amazing.

My CTC-7 and CTC-11 TVs had an assortment of maroon drops and tubular plastic-coated paper caps (bumblebees, et. al.). Don't recall any wax caps in either set.

In my limited experience, dipped mylar caps of that vintage (whatever the color) are not to be trusted as you would a new orange drop. And as you probably know, the tubular plastic-coated caps are all garbage, just like wax-coated paper.

Phil Nelson
Phil's Old Radios
http://antiqueradio.org/index.html

Now that you mention the 'maroon drops' I recall that being the population of the CTC-11 I had some years back.

I can't believe how terrible those black tubular caps were. Philco was sure fond of them for a long period of time. :no:

Hey Justin. I had the chassis pulled back when I replaced the thermistor. It other than that no. I didn't even test the tubes in the 9. I'm placing my bets on filter can caps. Are any of those puppies getting warm? Ive changed them out in my old 12 cause if a horizontal drift. Problem solved.

In that case, I'd best just pull the whole chassis out for a recap. The pic looks so good before it drifts I'm startled to find out it hasn't been serviced! Thanks for the heads-up.

Okay, haha, Eureka moment yesterday. The instant I saw the .01uF bumblebee across the horizontal oscillator coil everything became clear. Upon closer examination of the CTC-9, it looked like there had been spot repairs made in the past with a couple of Sprague orange drops, but other than that the chassis was bone stock. Replaced all the maroon drops and the two bumblebees (one shunted safely across the AC line) as well as the electrolytics. All the RCA badged tubes tested good and it ran strong all day.