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romero.video
Joined: 13 Jul 2011
Posts: 35
Location: Arkansas
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| Posted: Sat Jul 23, 2011 1:15 pm Post subject: Older tvs from 50's-60's with tubes |
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Lately, i've been getting more and more into the older stuff with console stereos and tvs. I just recently picked up an RCA New Vista Color set and now a Curtis Mathes combo. Where would be a good place to post with photos and get info about them. Here or maybe another forum?
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Curt Palme
CRT Tech
Joined: 08 Mar 2006
Posts: 24396
Location: Langley, BC
TV/Projector: All of them!
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| Posted: Sat Jul 23, 2011 2:40 pm Post subject: |
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You've got two decent tube TV sets here, me and MAc. THat takes me back to the 70s, which is where I got my start. Fire away, post pix, let us help!
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romero.video
Joined: 13 Jul 2011
Posts: 35
Location: Arkansas
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| Posted: Sun Jul 24, 2011 6:45 pm Post subject: Curtis Mathes and RCA |
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Thanks Curt. Here goes!
The Curtis Mathes has the tuning eye which is cool. Turntable works as well as the tuner. Tv turns on and runs but there is a bit cutoff on the right and at the top a little. I have a video of this running. Not sure if i can put it here tho. It is on youtube if that helps. Link here: http://www.youtube.com/watch?v=1t_WCWN9ZY8
The RCA is cleaner now than shown in the pic. Tuner works but can barely here it over the loud hum noise. TV doesn't light up but channel selector does. Picture tube was replaced new in 75 and has a brightener on it.
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Curt Palme
CRT Tech
Joined: 08 Mar 2006
Posts: 24396
Location: Langley, BC
TV/Projector: All of them!
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| Posted: Sun Jul 24, 2011 6:51 pm Post subject: |
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Wow, those are almost older than me!
You need to start by testing all the tubes in each set with a good tube tester. What I see video-wise is lack of sync, V linearity and height have issues, probably with the feedback caps in the V section, and that's just a start. The set that is humming needs new filter caps in the main power supply.
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romero.video
Joined: 13 Jul 2011
Posts: 35
Location: Arkansas
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| Posted: Mon Jul 25, 2011 2:48 pm Post subject: |
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I'm gonna have to pick up a tube tester. How much would i expect to pay for one? Also, how do i find out what year these are?
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Curt Palme
CRT Tech
Joined: 08 Mar 2006
Posts: 24396
Location: Langley, BC
TV/Projector: All of them!
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romero.video
Joined: 13 Jul 2011
Posts: 35
Location: Arkansas
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| Posted: Mon Jul 25, 2011 3:08 pm Post subject: |
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Great, thanks. How do you repair PVA De lamination on screens? I hope i said that right.
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Curt Palme
CRT Tech
Joined: 08 Mar 2006
Posts: 24396
Location: Langley, BC
TV/Projector: All of them!
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| Posted: Mon Jul 25, 2011 3:18 pm Post subject: |
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You're talking flaws on the face of the main CRT? You don't. 
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Mon Jul 25, 2011 4:15 pm Post subject: |
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If there is an old time repair shop in your area they may still have a tube tester on the back shelf covered with dust.....
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MikeEby
Joined: 24 Jun 2007
Posts: 5237
Location: Osceola, Indiana
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| Posted: Mon Jul 25, 2011 6:02 pm Post subject: |
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First thing I would do with the RCA is take a look at the flyback, its inside the high voltage cage...If it's smoked your probably dead in the water...I'm pretty sure chassis is a CTC-16, flyback failures were very common for that model, and several years following....FYI working on those old sets paid for a new Corvette in 1976.
Mike
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Doing HD since the last century!
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romero.video
Joined: 13 Jul 2011
Posts: 35
Location: Arkansas
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| Posted: Mon Jul 25, 2011 8:48 pm Post subject: |
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Yes the blemishing on the face of the crt. Not sure about any shops left around here. I think they're mostly gone. Might find something at the flea market tho. I know there used to be alot of tube stuff there. If the flyback is gone, will there be any hope of repair at all. If not, then what should i do?
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Mon Jul 25, 2011 9:17 pm Post subject: |
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Not sure of the condition of the fly just yet but if you have a hum in the audio that needs to be addressed first. That same problem could be why there is no picture. I would do like Curt says and start in the power supply section. Do you have any model numbers or any numbers. Look on the inside back cover to see if there is a print attached. More info required.
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Mon Jul 25, 2011 9:17 pm Post subject: |
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And post a picture of that tube face so we can see what you are talking about.
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romero.video
Joined: 13 Jul 2011
Posts: 35
Location: Arkansas
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| Posted: Mon Jul 25, 2011 11:53 pm Post subject: |
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Hope these help. i show one area near where the power cord plugs in. Looks like it is black from something burned or blown out. Maybe something else?
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| tubes and the hue-brite tube brightener |
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| Numbers on the back cover |
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Tue Jul 26, 2011 12:18 am Post subject: |
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Pictures aren't the greatest but those blemishes look like mold on the outside of the glass. Can you feel it running your finger across it?
Your picture of the burnt parts is not very clear.
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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Curt Palme
CRT Tech
Joined: 08 Mar 2006
Posts: 24396
Location: Langley, BC
TV/Projector: All of them!
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| Posted: Tue Jul 26, 2011 1:34 am Post subject: |
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That does look like the safety glass is coming off of the main glass, I've seen that lots in the past. I'd check online forums for vintage TV stuff. . Locally, Able Electronics did huge amounts of CRT remanufacturing. They are out of it, but get me the part number off the back, and I can see if by chance they have anything. I'm sure someone out there does..
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romero.video
Joined: 13 Jul 2011
Posts: 35
Location: Arkansas
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| Posted: Tue Jul 26, 2011 4:41 am Post subject: |
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Will do. The blemishes are behind the glass. Curt, i'll get you the part number tomorrow. You need the crt number right?
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