Videokarma.org

Go Back   Videokarma.org TV - Video - Vintage Television & Radio Forums > Early Color Television

We appreciate your help

in keeping this site going.
Reply
 
Thread Tools Display Modes
  #46  
Old 07-01-2012, 01:46 PM
mstaton's Avatar
mstaton mstaton is offline
"Book em Dano!"
 
Join Date: May 2011
Location: Caldwell, Id
Posts: 1,600
Just go down to local electronics store and order one. LOL Someone here should have one.
__________________
"It's a mad mad mad mad world" !!
http://www.youtube.com/user/mwstaton64?feature=mhee
Reply With Quote
  #47  
Old 07-01-2012, 09:45 PM
freakaftr8's Avatar
freakaftr8 freakaftr8 is offline
Convergence freak!
 
Join Date: Sep 2007
Location: Folsom, CA (no not in the prison)
Posts: 1,778
I wish. Looking for one. Anyone??
__________________
Honey, turn on the tv.. I'm cold!
Reply With Quote
  #48  
Old 07-02-2012, 09:28 AM
freakaftr8's Avatar
freakaftr8 freakaftr8 is offline
Convergence freak!
 
Join Date: Sep 2007
Location: Folsom, CA (no not in the prison)
Posts: 1,778
Yesterday morning my 3 year old and I watched the jungle book on the 11. About near the end of the movie the CRT got dimmer and dimmer and blurry.

So.. I gave this tube one last bump before I gave up and looking for a replacement. I left the tube cooking for at least 6 hours at 8.5v so it got nice and hot. Dialed it back to 6.3. Checked emission. All 3 barely registered. So.... I wacked all three guns at rejuv 3 function. What a spark, very audible!

Results were impressive. That's what's wrong. I had a smear issue I was trying to chase down in the IF section. It was the CRT that was causing all the issues. Well nice and bright now! Lol doubt it will last a day like this. Actually the chassis outputs an excellent image. Oh and the filters measure good. But I'm monitoring them.
__________________
Honey, turn on the tv.. I'm cold!
Reply With Quote
  #49  
Old 07-02-2012, 03:04 PM
freakaftr8's Avatar
freakaftr8 freakaftr8 is offline
Convergence freak!
 
Join Date: Sep 2007
Location: Folsom, CA (no not in the prison)
Posts: 1,778
Anyone else had results after rejuvenation that lasted?
__________________
Honey, turn on the tv.. I'm cold!
Reply With Quote
  #50  
Old 07-02-2012, 03:26 PM
DavGoodlin's Avatar
DavGoodlin DavGoodlin is offline
Motorola Minion
 
Join Date: Aug 2011
Location: near Strasburg PA
Posts: 3,413
Yes, Zenith 25VBQP22 (1973 25DC57) looked good for another 12 years after a serious blast. I think the key may be that you need to use it regularly once you do it.
Reply With Quote
Audiokarma
  #51  
Old 07-02-2012, 08:02 PM
miniman82's Avatar
miniman82 miniman82 is offline
First Light: 1952-2011
 
Join Date: Jun 2009
Location: Great Mills, MD
Posts: 4,159
If it's a cathode contamination issue (gas), you'll have to whack it now and again because the gas will just redeposit and poison the cathodes when the tube is not in use. Best thing is just to replace it.
__________________
Evolution...
Reply With Quote
  #52  
Old 07-02-2012, 10:23 PM
freakaftr8's Avatar
freakaftr8 freakaftr8 is offline
Convergence freak!
 
Join Date: Sep 2007
Location: Folsom, CA (no not in the prison)
Posts: 1,778
Sounds like why my wife does to me when I make her mad. Lol. I'll keep an eye on the CRT emission level this week and see what happens. Meantime I'm going to test tubes and check some circuits in the vertical section. The linarity is off and seems that I went through this with my ctc-16
__________________
Honey, turn on the tv.. I'm cold!
Reply With Quote
  #53  
Old 07-03-2012, 11:24 PM
ChrisW6ATV's Avatar
ChrisW6ATV ChrisW6ATV is offline
Another CT-100 lives!
 
Join Date: Feb 2007
Location: Hayward, Cal. USA
Posts: 3,472
Quote:
Originally Posted by freakaftr8 View Post
Anyone else had results after rejuvenation that lasted?
With black-and-white CRTs in commercial use, I have had some rejuvenated tubes last for years and others die within weeks, so no consistent results here. All of these were in use 24 hours per day before and after rejuvenation.
__________________
Chris

Quote from another forum: "(Antique TV collecting) always seemed to me to be a fringe hobby that only weirdos did."
Reply With Quote
  #54  
Old 07-04-2012, 12:49 PM
Tom S's Avatar
Tom S Tom S is offline
VideoKarma Member
 
Join Date: Sep 2008
Location: Plover, WI
Posts: 185
I usually use a clean and balance setting on my Sencore Big Mack. Full restore as a last resort. I checked both of my sets. One having a CYP and the other an FBP. CYP is great and I left it alone. FBP has a cateract that I want gone and emission was just a tad low. Cleaned and balanced it end of April. Checked it end of June and it's great but I use it regularly. I am going to look for an extra CRT just to have one. I love these old sets and thank got for ME TV. Really takes me back.
__________________
Tom Smrz
Reply With Quote
Reply



Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 04:29 AM.



Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
©Copyright 2012 VideoKarma.org, All rights reserved.