CTC-5A acquired!...It wants to live.

[Electronic M]

Once I swap the CRT I plan to follow the great instructions in your thread Ed and convert it to a all glass CRT... I'll do my best to make it reversible, and of course keep all the spare mounting hardware with it for the future. You never know when even the most arcaine part will suddenly become needed(though in my experience it is usually within a month of getting rid of it ).

[Electronic M]

Changed all the papers on the H and V boards, all the papers under chassis and all but 3 sections of can lytic. It had 2 extra cans zip tied under chassis that I had to re-replace on principle. I also did the vertical lytic, and every can with an obviously dead section. I made sure to change the lytics right off the rectifier too since the power trans has leaked a very noticeable quantity of wax...Much more and I'd have expected it to be bad if I had started the recap before doing the variac power up.

Vert fills the screen and is linear now. Neither of the syncs are as stable as they should be (no change there), monochrome video is weak and color is prone to noise, but it is behaving better overall...I figure once I go over the remaining boards it will be happier.

[EdKozk2]

Tom,
The power transformer on my CTC5f gets quite hot after about an hour and a half of usage. At the ETF Wayne , old tv nut told me because the transformer is potted it tends to run hotter. I've been operating my set with a voltage regulated isolation transformer.
Ed

[Electronic M]

I finished the recap earlier, and now am sort of satisfied with the picture.


Seems like the alignment is goofy. On rabbit ears and my TX it does not get enough signal to produce sufficient contrast, and chroma is very noisy, it only seems to get sound on the ragged edge of the picture finetuning, and AGC does not seem to do anything. Feeding it directly with a VCR gives plenty of contrast and less chroma noise also optimum chroma, luminance and sound get close enough to have all fairly decent to optimum simultaneously (also the AGC has an effect). Can't totally ditch the chroma noise though (thinking about it maybe the garage fluorescents are interfering).

I think it is about time to harvest the 21AXP22.

Originally Posted by EdKozk2

Tom,
The power transformer on my CTC5f gets quite hot after about an hour and a half of usage. At the ETF Wayne , old tv nut told me because the transformer is potted it tends to run hotter. I've been operating my set with a voltage regulated isolation transformer.
Ed

Good to know. I need to keep an eye out for more of them. I've got 4 but 5 of the 4 are needed by sets (it would be more if I did serious watching on more of my collection).

[EdKozk2]

Tom,
Those screen shots look good. The crt I'm using came out of a dumpster set. I can see the difference a good green gun makes. The sound on these set leaves a lot to be desired. The whiter the screen the more buzz. There is a buzz control on the I.F board, it helps a little. The AGC control on my set is able to overload the signal.
Ed