Broken front glass of GE locomotive style TV

[yagosaga]

Thanks for this advice. But before I will do it, I have to fix the low-contrast problem. The picture remains very dim no matter what the contrast control is set.

[yagosaga]

Hello,

meanwhile I have replaced the weak CRT by a 10FP4. The 10FP4 is really a lot brighter and shows an excellent picture.

The bad contrast depended on a dried electrolytic 10 uF capacitor in the video amplifier section. Vertical does not properly locked in. But this is a fault which I have to check with the scope.

Kind regards,
Eckhard

[bandersen]

Nice job
Are you going to replace all the old caps and selenium rectifiers?

I have a very similar set set only mine's not working so well

[zenithfan1]

Originally Posted by bandersen

Nice job
Are you going to replace all the old caps and selenium rectifiers?

I have a very similar set set only mine's not working so well

That's the one that keeps eluding me. One of these days one will be mine. Either screen bezel design would be ok but I like the roundie one best, like Eckhard's set which is looking great BTW

[yagosaga]

Originally Posted by bandersen

Nice job
Are you going to replace all the old caps and selenium rectifiers?

This set is not wanted as a daily watcher. So, it is my philosophy only to replace bad or weak parts until the set can be used for occasional operation. I don't like the look of a vintage chassis with modern parts. And when I replace caps for example, I left the original ones on the chassis.

Currently, I am still operating these vintage sets occasionally. I do not know who will own my collection when I passed away. But I believe that the ability to keep the sets running will diminish. Even today, I need many tools to operate the sets (115V mains transformer, television standard converters, digital to analog converters, and so on.) I assume that those people who will get these sets in the future would use them only for exhibitions or research purposes, and therefore it is recommended to keep them as original as possible. But this is my philosophy, this must not yours.

Vertical is not working in your set. Do you have the schematics? Did you measure the voltages at the vertical tube?

- Eckhard

[bandersen]

Yes, I have all the service documentation for this set. Unfortunately, I have a backlog of about 20 sets to restore so I'm not sure when I'll get to it.

I do replace paper caps, electrolytics, seleniums and out of spec resistors, but I try to keep it looking as original as practical. For example, I restuff the can capacitors. I'm going to experiment with restuffing paper caps soon too. I also add a fuse or two for safety and to protect critical components.

I do operate my sets on a regular basis, but then it's easier for me. We still have one VHF and about 8 UHF low power analog broadcasts in my area. I also have my own low power VHF transmitter. All I need to do is turn a set on and maybe fiddle with the rabbit ears to watch it

Good luck with you projects.
Bob

[yagosaga]

Hello,

here is a short video showing the set working:

http://www.youtube.com/watch?v=DK5e1Zhf9Nw

Kind regards,
Eckhard