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It is official, now there are more bananas here than a bad game of Mario Kart. |
I love Mario Kart! :banana: It's been a long time since I played it, have it for the Wii somewhere:banana::D
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I fixed the record changer
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5, 4, 3, 2...
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I was worried about carpet tack scratches, but none occurred. We were going to hire movers for mom's gigantic dresser(roundy combos only wish they could be so big and heavy!), but with team work and that technique we were able to move it.....It had all the drawers removed and STILL was WAY harder to manage than any of my TVs!:jawdrop: |
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LOL!!! Thanks for adding the two that didn't work:D! :banana:
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What does it mean if a 1951 admiral has retrace lines? bad caps?
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Usually it does mean bad caps or resistors. But if you are watching a DVD they show on top because of the anti copy protection that is encoded into the DVD. The lines then will come and go like every 30 seconds. Also, if the CRT has a short it can cause retrace. what are you using for a source on this set? VCR, DVD ect....http://www.pimpmysmiley.com/get-smiley.php?s=2_15
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Did you check it for shorts? If not, do that. If it's fine, recap the set if it's all original. It would be best to change all the wax/paper caps at this point. Do it one at a time, don't cut 'em all out at once or anything. Check the resistors in the vertical circuit too. They tend to drift upward in value as they age.
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Visible retrace lines are normal for an Admiral from the era. You can make a minor circuit modification to suppress them though.
mbear2k was kind enough to scan and make available the details in Rider TV Manufacturers' Receiver Trouble Cures - Volume 1 http://www.oldtubes.net/library/free_manuals/ |
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I thought you sold it...? The one in your signature, that is. Or are you talking about a different Admiral?
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Uh, OK.
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Just got a 1965 zenith CoLoR
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i just got a 1962 rca, and a 1972 rca tube type tvs:thmbsp::yes:
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i just watched an itiot smash a 1950s portable tv ON PORPOSE!:tears::tears::tears::tears::tears::tears: :tears:
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Flipper gonna be OK?
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just got a 1950 arvin tv, had it in another fourm, but people only complained so it was closed. it has half a weak picture
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According to the moderator, it was closed at your request.
It's only two threads down, from this one, right now. I'm sure anyone that had an interest has already read it. Why bring it up again? |
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I gotta say. You just joined this month and you already have 162 posts?
Dayum. |
That's it man, run em until they blow.
There was no fight. There were a few members trying unsuccessfully to convince young Radiotron to follow a different path on his projects. He feels otherwise. |
NO!.....You don't "use the parts until they die" on a TV set. The "dead part" if left unnatended will almost ALWAYS bring the set out of safety tolerances....and then bring down the rest of the parts your "weak" part supports. Yes...you can usually "adjust out" the problem up until you notice the vertical size is "maxed" to one side or something...but it means you have something to tend to BEFORE you suddenly have NO vertical and the set becomes a basket case. Your signature pic shows you tend to just "tolerate" every show looking like you are watching The Coneheads (You are probly too young to know who those guys are.....Look 'em up, they are funny as HELL!). That linearity/height problem is something you HAVE to diagnose. At least get a decent pattern generator so you can SEE there is a problem before it becomes much worse. Even just a good clean crosshatch can be a WONDERFUL tool.
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The problem with your "philosophy" is that some components can take other, often irreplaceable components out when they fail. A filter capacitor that fails shorted can take out a power transformer. A failed component in a horizontal oscillator circuit can burn up a flyback. A failed 10 cent part can potentially cause enough damage to prevent a set from ever running again. Certain types of components are KNOWN not to age well, and should generally be replaced (or at least PROPERLY tested) before applying power to an old set. If you know enough about vintage electronics and have all the proper equipment, you might get away with a CONTROLLED reduced voltage power-up stage-by-stage on some sets. But your posts tend to indicate that your skill set isn't there yet. |
I think Matthew Henry said it best:
"There are none so deaf as those that will not hear" Good advice has been given here, and largely ignored or disputed. jr |
I like to kinda let things just roll as they will but,........I'm getting a bit tired of it now. Radiotron or Johnny, why do you not listen to the experts? Why do you argue with them? I remember being very young and I listened carefully to what people like the ones here say. I STILL do at age 30. I try to learn something new everyday. We are trying to teach you what to, and not to do. When we say the caps are bad (even if the set works) they are bad. People here have tried to tell you exactly what is wrong with every set you have posted about. I know you say complain to tvtimeisfun but he really hasn't had much to say in general on the forums. You are the one posting a lot of things and should be responsible for your own actions. I really hope you are learning from your grandpa as to repair old sets. My grandpa died before I really got to know him and he was a tv repairman in the '60's and 70's. If yours knows his stuff on old electronics, learn everything you can from him and treasure the information, and also from the wonderful members here. Most of the people here worked on this stuff back in the day and still do so it's best to just listen to their advise. MOST importantly, do not get hurt on an old tv. These things have deadly voltage inside and we are trying to keep you safe as well. When things short out LIKE OLD ELECTROLYTIC CAPS they can put line voltages on the chassis at times amongst other hazards involved in old tv repair. Some sets have one side of the ac line on the chassis at all times and are dangerous to begin with so it's best to listen. I'm done rambling now and I guess it's my job as a moderator to do so once in a while but please think about it....K?......
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If it wasn't for the people here and their advice on how to fix things or identify things, my Samsung TV would have been back in the trash.
But because we have smart people here, like radiotvnut that knew about the flyback issue well before I even turned on this TV set, I knew what to look for when it had problems right on day 2.. |
DANGER WILL ROBINSON DANGER!!! i sense a capacitor debate spillover from a closed discussion :boxing:
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Here is a good idea next time you see a tv set or radio just skip over it and buy some test equipment like tube tester and capacitor checkers that should help you out a lot and show you wich caps really need replaced. if you really ate wanting to keep as many orgional parts in the tv as possible while keeping it working reasonably well this is the way to go for you I believe. Me I always replace the lyrics and papers in the old sets unless I don't have the part on hand.
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ive never a a set go with bad caps when i used it ive had tubes go out when i was watching it, but never caps in the 2 years ive been doing this |
That's just stupid.. Capacitors go out more than tubes.. Tubes are in a vacuum.. Capacitors aren't and they DRY up!
2 years you've been doing this, and you're already this stubborn? Good luck with frying nice old TV's. Just because someone else does it, doesn't mean it's right. |
capacitors are the number one thing in new or esp. old equitment that fail ,they can become leaky ,shorted,open,change value,become resisted ,they can cause intermitent problems, can cause unfiltered voltage's or in blocking aplacation's to damage semiconductor's or electron tube's . the old can type multi side electrolytic dry up ,are internaly leaky ,most of the time they are in a open condition. the same with the wax paper caps they failed back in day on regular base's heat & wax dont mix , im not a fan of reforming either if its bad replace it ,to say you have never had to replace a cap before or your grandpa doesnt like giving out parts when the set works ,is kinda a mystery.
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I'm going to say this. This picture says it all.
This TV is from 2008: http://img.photobucket.com/albums/v3...n/blowncap.jpg And that capacitor, caused this giant problem in the video processing chip: http://img.photobucket.com/albums/v3.../blownchip.jpg Yea. So, REPLACE THOSE CAPS! |
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