Ctc9f

[Charlie]

After jacking around with this tuner for a while, I was able to get one side of that little capacitor disconnected. Unfortunately, it did not correct the problem I was having with the resistance readings on pins 9, 8, 6, and 3. So, either I have something else in there that's shorted/grounded, OR, the imformation in the Sams is incorrect (and we've all found that to be more common than not from time to time).

Here's a thought.... I have a CTC11 chassis out in the garage that I know functions. Physically, I believe the tuners to be the same. Electronically, they are a little different. There's a 5 volt difference for the B+ between the two. I'm thinking about seeing if I can put the 11 tuner on this 9 chassis and see what I can get.

I welcome any input regarding this swap.

[Charlie]

If you're in a pinch, a tuner out of an 11 will work in a 9. The body of the 11 tuner was a little shorter, so only one screw hole lined up for mounting on the chassis. Other than that, it fit pretty good.

THere were a lot of cob webs in that thing from being on the floor of the garage for the past several years... I just did a quickie clean up and stuck it in there. It actually works better than I thought it would.

Took a lot of adjusting to get a decent stable picture. Had some squiggly lines to deal with. I suspect most of it is from being dirty. I will take it out and give it a good cleaning.

At least this shows my problem was definately the tuner.

For the original tuner, I hope to find out something about the guy in Longview... I could send it to him to fix up (if he doesn't already have one on the shelf). Until then, I will likely poke around in it to see if I can figure it out myself.

If necessary, I suppose I can leave this CTC11 tuner in there, but I'd really like to get it the way it's supposed to be.

Here's a few shots after the install. The only adjustments made were the user front-panel controls. I didn't need to touch anything in the back yet. I'm surprised that the convergence is somewhat decent.