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-   -   My new 1964 Zenith 25LC20 (http://www.videokarma.org/showthread.php?t=269605)

TUD1 10-05-2017 05:34 PM

My new 1964 Zenith 25LC20
 
3 Attachment(s)
I went all the way up to Chattanooga, TN to get this Zenith roundie at an estate sale. I got it for $40, but it is an extremely high hour set. It has a 1971 RCA Hi-Lite tube, and many replacement tubes. No remote either. And as you can see, it is covered in 1/4 inch of fluffy dust. It will be getting the full spa treatment.

LADR 10-05-2017 05:45 PM

Too bad about the high hour thing but if i never clicked on the estate sale on the website, you may not have it right now.

MadMan 10-06-2017 01:29 AM

Think you got ripped off. That tv says it was $4 each.

zenithfan1 10-06-2017 07:55 AM

Quote:

Originally Posted by MadMan (Post 3190305)
Think you got ripped off. That tv says it was $4 each.

:lmao:

Electronic M 10-06-2017 08:29 AM

That was only the third model year of Zenith color, I'd be happy to find a remote set like that even if it was super-high-hour.

If the sweep output transformers and CRT are good, the rest can be made good.

TUD1 10-06-2017 11:25 AM

Just powered the set up for the first time. Remote chassis and power tuning work, but no HV, and I started to smell something getting hot after a minute. More updates tonite.

DavGoodlin 10-06-2017 01:33 PM

Great find Dave! I have the same model. Mahogany contemporary - S6026 And have not dug it out. I wish I could find a brochure for the 1964 models.

Paid substantially more for it but the previous owner was scientist-engineer who had serviced it since it was young. He'd installed a cooling fan on the back cover and its on its 3rd or 4th CRT. It was his mother's and when she passed, He decided to let it go. I have no intention of selling it.

That was a great chassis. Nobody ever got rid of them like the RCA's with their famous fried-backs.

TUD1 10-06-2017 03:33 PM

1 Attachment(s)
The 1971 RCA Hi-Lite tube has one foot in the grave. This is the blue gun, after a rejuvenation.

wa2ise 10-06-2017 04:14 PM

The heatsink on the power transformer implys that they ran it hard...

Kevin Kuehn 10-06-2017 04:44 PM

Very nice find! I thought the heatsink transformer was standard Zenith issue, no?

TUD1 10-06-2017 07:57 PM

No high voltage, and the horizontal output tube is redplating. Replaced 6 of the 9 bad tubes. Still need a 6HF5, 6BK4 and 6BQ5.

TUD1 10-07-2017 11:58 AM

3 Attachment(s)
I was able to draw a very weak arc off of the horizontal ouput plate cap.

Jeffhs 11-01-2020 10:19 PM

Quote:

Originally Posted by TUD1 (Post 3190291)
I went all the way up to Chattanooga, TN to get this Zenith roundie at an estate sale. I got it for $40, but it is an extremely high hour set. It has a 1971 RCA Hi-Lite tube, and many replacement tubes. No remote either. And as you can see, it is covered in 1/4 inch of fluffy dust. It will be getting the full spa treatment.

You have a good set there. Zenith TVs were always good, in my experience; the chassis were hand wired (no PC boards). The power transformers in most, if not all, Zenith TVs of the '50s-'60s all had fins on either side, so they ran cooler than many if not most other sets. I once had a Zenith K-2739 b&w 23" console with such a transformer; it served me well for quite a while, until I had to move in 1972. I hated like anything to have to get rid of that set (it was a trash find with no tubes except the CRT and HV rectifier), as I had retubed it and had done a lot of other work on it; then, a year or so later, I found out I would have to move and couldn't take the set with me. I hated to do it, but my circumstances at the time were such that I had no choice (long story and OT).

As I said, you have a good TV there, one that will serve you well once you get it working. Zenith TVs, radios, stereo gear, etc. were great; it was a shame the company went out of business and moved to Korea when it did.

consoleguy67 11-02-2020 12:06 PM

Very nice cabinet, looks to be in great shape.

Tim Tress 11-03-2020 09:13 PM

If the horizontal output is red plating, the HV rectifier is a prime suspect. Also check the grid voltage; you might have a horizontal oscillator problem. I can't remember if that set uses a 3A3 or a 3AT2; it has been too many years.

The end of Zenith was a tragedy; LG basically just took them over. The debacle with the bad CRTs was the final nail in the coffin.


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