Videokarma.org

Go Back   Videokarma.org TV - Video - Vintage Television & Radio Forums > Early B&W and Projection TV

Notices

We appreciate your help

in keeping this site going.
 
 
Thread Tools Display Modes
Prev Previous Post   Next Post Next
  #29  
Old 03-19-2015, 06:06 PM
whatadish whatadish is offline
VideoKarma Member
 
Join Date: Dec 2014
Posts: 22
Predicta 17er still no negative bias on hot

while I still have not figured this out I have gone through the circuit board as best as I can. I have traced all grounds and appear to be good, all tube sockets meter good too..interestingly enough I have encountered yet another issue I am hoping someone can help me with...the width control seems to be getting very warm. 280v on wiper(vr tests fine) 27 to 50v at other end at hot. I guess without understanding how the basic hot circuit works I was just hoping after going through the board again I would find something obvious. I checked and rechecked my stake connections. Almost impossible to solder without sanding them down. I just don't understand how just moving the chassis a couple inches caused such a huge failure when it had such a nice picture for a few minutes. B+ seems to have jumped about 30v too. I have found another working 10L43 chassis that I am hoping will help me troubleshoot this with my limited knowledge of tv circuits. In the meantime any help would be appreciated.
Reply With Quote
 



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 08:35 PM.



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