Videokarma.org TV - Video - Vintage Television & Radio Forums

Videokarma.org TV - Video - Vintage Television & Radio Forums (http://www.videokarma.org/index.php)
-   Early Color Television (http://www.videokarma.org/forumdisplay.php?f=36)
-   -   '56 Hoffman Color-caster (http://www.videokarma.org/showthread.php?t=246788)

David Roper 01-02-2010 02:48 AM

The anode is in the tube, the wire with the suction cup on the end is the HV lead. I can't quite tell from that picture, but I have to wonder if the insulating sleeve used to go though the cage opening and has slipped down from where it's supposed to be.

zenithfan1 01-02-2010 09:35 AM

Good luck on getting it done. Be careful with that cabinet, it has a printed finish on it. Stripping it would be a big no-no. I think touching it up and matching the color is about all that can be done with these types of "finishes". I have a CTC9 Anniversary model that has a finish almost the same color as yours and I have to hide all it's blemishes. I'm practicing my theories on non-important stuff first.

Cruiseomatic 01-02-2010 10:02 AM

...

Cruiseomatic 01-03-2010 03:16 PM

Cabinet is done.
 
Got the cabinet as good as I can get it right now. Its not perfect but I think it will please someone on here. I have some pictures of it. I think it looks good.

What has me worried is that screen surround has residue coming off like auto paint does when it gets old and begins to oxidize when you apply a rubbing compound or something. Edit;Well when I moved it more paint came off now its fading badly and went from gray before water hit it to light gray with white mixed in. The actual white in the middle needs work too.
I thought about masking areas off and re-painting them to original colors, If only I knew what they we're. Such as what shade white or gray they used. Other then that the cabinet looks pretty good.

http://i413.photobucket.com/albums/p...8/DSCF1124.jpg

http://i413.photobucket.com/albums/p...8/DSCF1125.jpg

http://i413.photobucket.com/albums/p...8/DSCF1127.jpg

http://i413.photobucket.com/albums/p...8/DSCF1126.jpg
Let me know what ya'll think.

zenithfan1 01-03-2010 03:36 PM

It looks great! Did you try the OxyClean on the speaker cloth? It looks brighter and cleaner. Good work!

sampson159 01-03-2010 05:40 PM

looks good.the cabinet can be touched up very nicely with a detail brush and some dark shellac.use an artists brush and do it by hand,painstaking but worth the effort.i have done this many times with very good results.do not strip this.it is good enough to do a simple touch up on.i am glad to see how nice this cleaned up.

Cruiseomatic 01-03-2010 06:50 PM

I did a light vacuum and light oxy-clean and another vacuum. Looks alot better. On the cabinet though,I cleaned as well as I could get,Lots of Old English polish and some TLC detail. Now on the left side is a small hole in it and like can be seen in the pictures,parts of veneer broken off. But I'm slowly getting it. Monday the chassis is getting "New" life. I say new in quotes because It could end up with new but original style wax/paper caps back in it. They are new because they were never used once. Might have good shelf life,Don't know. We'll see. I also heard Sprague, The ones who made Orange Drops went belly up. Is this fact or fiction?
Thanks for the help guys. As ya'll can see it really is being taken to heart and applied. If I could get the screen surround painted then all I'd be waiting on is the chassis. Is that just a normal gray and white or is it a special shade?

Carmine 01-03-2010 07:05 PM

Quote:

Originally Posted by Cruiseomatic (Post 2963378)
If I could get the screen surround painted then all I'd be waiting on is the chassis. Is that just a normal gray and white or is it a special shade?

I'm sure the gray is a metallic. Take it to a professional auto paint jobber, they should have lacquer in a can for $5-7 that would be a very close match.

Cruiseomatic 01-03-2010 07:27 PM

After alot of brushing and TLC It went from this:
http://i413.photobucket.com/albums/p...8/DSCF1075.jpg
http://i413.photobucket.com/albums/p...DSCF1076-1.jpg

To this:

http://i413.photobucket.com/albums/p...8/DSCF1126.jpg
http://i413.photobucket.com/albums/p...8/DSCF1124.jpg
http://i413.photobucket.com/albums/p...8/DSCF1124.jpg

Steve D. 01-03-2010 10:53 PM

Chuck,

I haven't posted to this thread for some time. You did as I suggested at the beginning and used a good furniture wax and a little elbow grease. The cabinet and grille cloth cleaned up great. Just needs some slight touch up and then leave it alone. The chassis cleaned up very well. As suggested take the screen surround (mask) with you when you do the paint matching. Careful masking when you spray should make for a nice original look. Use the blue 3M masking tape. I hope you were able to carefully clean up the knobs and glue the broken one together. Then it's on to the technical side of this restoration.

-Steve D.

Charlie 01-03-2010 10:53 PM

You say you might be re-capping this set with NOS paper/wax caps? That might not be a wise move. Even if these caps weren't previously used, they likely won't hold up for very long. Paper/wax caps weren't the greatest even when they were new... and they don't get better with age. If you want to keep the chassis looking original, you should restuff the old caps with new ones.

Cruiseomatic 01-03-2010 11:32 PM

How does one "Re-stuff" old caps and electrolytics?
Steve, On the knobs that one that broke inside went back together really nice and now you can not even tell it happened.

miniman82 01-04-2010 02:59 AM

Definitely get rid of the nasty old caps, even the Micamold ones: trust me on that one!

Restuffing article: http://www.audioasylum.com/cgi/m.mpl...ntage&n=171603

Sandy G 01-04-2010 05:29 AM

Yeah, FOR HEAVEN'S SAKE do NOT trust this dream set to wax/paper caps...Even if they're guaranteed new-old-stock.

Cruiseomatic 01-04-2010 09:24 AM

I won't. It was just a thought when he told me he had them, to keep it original as much as possible. After the cabinet,newer type pic tube and electrical restoration and re-painting the mask.....After all this I don't think it will be worth much. What do ya'll think? Looked at where the cabinet is missing veneer and it looks like they glued veneer down and stained it. If thats the case then it could be re-finished. No, I'm not saying I will do it but I do need something to cover up all the "Battle Scars" of 53 years....The front is the worst,next to the left side,then the top.

Phil Nelson 01-04-2010 11:44 AM

If you are curious about recapping, including "restuffing," read this article:

http://antiqueradio.org/recap.htm

Meanwhile, please phone your service guy right now and tell him not to use NOS caps from that period, whether wax paper, plastic coated paper, or whatever. They are all junk because moisture invisibly gets inside them over the years, whether or not they are used. Even if they test OK at the moment, they will not last under normal operating voltage.

The article shows the different types, but since you're not doing the work, that is mainly FYI for your curiosity. Just tell your guy to use new caps. Whether you want to pay him extra to "restuff" the old cap shells with new ones is up to you. I wouldn't pay extra for that, personally. Once the chassis is back in the cabinet, you are not going to pull it out every time a visitor stops over. As for future value, I suspect a future owner would pay more for a set that has been restored responsibly, rather than patched together with unreliable NOS parts.

Phil Nelson

jeyurkon 01-04-2010 01:03 PM

Add me to the list of people in favor of not using NOS paper caps. However, if you already have them and want to do some of the work yourself, you could take the NOS caps and restuff them. Have the guy who is doing the work for you order the correct caps to use and restuff the NOS ones with them. That way the caps would be ready for your tech to swap when he recaps the set.

They will be hidden though so unless you have your own reasons for wanting it to look more original underneath, you don't really need to go to the extra work of restuffing them.

John

Cruiseomatic 01-04-2010 08:50 PM

I told him to go with new caps. There are some that test very good to good that he said should just be left alone. Some are completely dead and some are just goners. I took it to him tonight and we'll find out in about a week to a week and a half and see how it went.

Charlie 01-04-2010 09:04 PM

Cruise-O,

He really should change out ALL of those paper caps... even if the originals test good. If he leaves them in there, they will indeed fail.... especially once all the rest of the caps and lytics have been changed... those old originals left in there will not last long at all. They will be the weakest link.

If you buy a Comet with a set of tires that are 40 years old, you're gonna change all four or they will start blowing with use. If you change 3, and leave the 4th because it still looks okay, it too will still fail soon with use simply because it's old and the rubber isn't strong like it used to be. Same thing applies to these paper/wax caps.

Leave them in there, and you'll have to pull that chassis out again later. Change them now and be done with it while you already have it apart.

zenithfan1 01-04-2010 09:09 PM

Ditto on what Charlie says.....

peverett 01-05-2010 12:16 AM

Ditto to what Charlie indicated. I restored a 1953 Emerson once and left one paper cap in. This cap was on the AGC line with 4 volts across it. Very shortly thereafter the TV started having AGC issues. Changing the paper cap fixed it. Some have said that you can "reform" old electrolytics. I have also tried that with very poor results in radios. Within 6 months, the radio is humming again. Replace all electrolytics and paper capacitors with modern ones!

I actually know of a person who has a story similar to Charlies about the Comet. He had an antique car with 20 year old tires and tried to drive it to a car show several hundred miles away from his home. At least some of the tires had to be replaced on the trip after failing on the highway. I guess he thought they looked ok-like the paper caps.

sampson159 01-05-2010 11:04 AM

its like changing some of your spark plugs or draining some of the oil.replace all of them.do it right the first time.i ,have done the same stupid thing through the yearsw.change out one cap or a few.guess what happens?

Cruiseomatic 01-05-2010 11:05 AM

I'm taking the pic tube to him later today, I will indeed let him to know replace all the caps and lytics.

Cruiseomatic 01-05-2010 07:14 PM

Well I found my set on ETF. And tested the pic tube, He put HV to the prongs of the neck and seen voltage shoot to the prongs into the neck and see them in the neck, He said that it should not be doing that.

Little past halfway down,



http://www.earlytelevision.org/21_inch_color.html

DaveWM 01-05-2010 07:36 PM

lost you on that, the pic tube was tested and there were sparks involved?

I did not think that would happen unless a rejuv was done.

old_tv_nut 01-05-2010 08:04 PM

I think he means used a tesla coil to see if there was internal air glow or sparking, and there was - meaning tube gone to air

Sandy G 01-05-2010 08:45 PM

The best way to test a Wax/Paper Capacitor: 1) Take it out of the equipment. 2) Hold it high above yr head, over a metal trash receptacle- 3) Drop it in said receptacle. If it goes "Bangety-bang bang, Tinkety-tink tink" or a variation thereof, it is no good. 4) Leave it there, & replace w/new one 5) Enjoy yr rejuvenated equipment !

Cruiseomatic 01-05-2010 09:03 PM

Quote:

Originally Posted by old_tv_nut (Post 2963522)
I think he means used a tesla coil to see if there was internal air glow or sparking, and there was - meaning tube gone to air.

Yes exactly.

RobtWB 01-18-2010 01:23 PM

Any progress to report?


All times are GMT -5. The time now is 05:09 AM.

Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2026, Jelsoft Enterprises Ltd.
©Copyright 2012 VideoKarma.org, All rights reserved.