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  #1  
Old 09-16-2017, 06:37 PM
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My new CTC-15

Got this CTC-15 today for only $32. It had the original tube, but it was replaced because I wanted the rare earth phosphor.

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Last edited by Celt; 09-16-2017 at 08:47 PM.
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Old 09-16-2017, 08:30 PM
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Sweet! And inexpensive too!
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Old 09-16-2017, 08:48 PM
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Good lookin' set!
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Old 09-17-2017, 02:22 AM
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Finally fired up the CTC-15. Check out that incredible picture!

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Last edited by Celt; 09-18-2017 at 10:58 AM.
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Old 09-17-2017, 03:08 AM
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Noice.
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  #6  
Old 09-17-2017, 11:34 AM
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Nice! I've been after something similar for a few months now. I'm still convinced no one in my neck of the woods had color until the solid state era......

also that Futurama subtitle is hilarious
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Old 09-17-2017, 01:01 PM
old_coot88 old_coot88 is offline
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Great find. As you're probably already aware, the two ground stakes on the far right end of the chroma board exist in two states: either cracked or gonna crack soon. They need to be re-flowed as a matter of course on every CTC-12, '15, '16, '17 and '25.

When they fail, the heaters on the 6GU7s go out, causing the plate voltage to rise. Since the plates are DC-coupled to the CRT grids, this makes the CRT beam current go nuts, lugging down the HV supply. Pic blooms, loses focus and fades out.
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Old 09-18-2017, 08:31 AM
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Very nice set. If you have your other tube I'm interested. Have a CTC11 I would like to improve. Thanks
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Old 09-18-2017, 03:02 PM
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Had to trade the old tube for the new one.
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Old 09-18-2017, 08:45 PM
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Well, I'm fighting my first battle with the CTC-15 already. The CRT keeps randomly loosing filament voltage. I took the back off, inspected the socket and CRT base, and put a drop of Deoxit on the filament pins, and that fixed it. I put the back cover back on, and it's out again.

PROBLEM SOLVED. Had to heat up the CRT pins.
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Last edited by TUD1; 09-18-2017 at 09:36 PM.
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  #11  
Old 09-19-2017, 09:40 AM
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Heck, take it back for a warranty claim on the CRT.

Looks nice...
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Old 09-19-2017, 01:02 PM
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This is becoming the most problematic TV I've ever owned. I had to fix the CRT filament again last night, and I decided to just leave it away from the wall with the cover off. It was working perfectly fine when I went to bed, and when I got up today, I had no blue, no red, and a whole lotta green. I tried swtching the 6GU7's around, and after that I got no green, and whole lotta purple. So then I go find another 6GU7, and put it in the G-Y/blanker tube socket, and the green was still dead. I'm at a loss.
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File Type: jpg IMG_1590.jpg (106.8 KB, 28 views)
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Old 09-19-2017, 01:17 PM
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Has the solder ground stakes/traces on the chroma board been reflowed?..If not then you will want to do that.
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Old 09-19-2017, 05:33 PM
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New tubes, clean sockets, solid solder joints, FTW.
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Old 09-19-2017, 05:51 PM
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