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
  #11  
Old 03-16-2003, 12:14 AM
jshorva65's Avatar
jshorva65 jshorva65 is offline
VideoKarma Member
 
Join Date: Jun 2002
Location: Ohio
Posts: 358
Well, I had a little setback with the 8T241 today. I put it back in the cabinet last night and watched it for about 2 hours with no problems, but today the picture was intermittently blacking out. with accompanying "screeching" noises coming from inside the HV cage. I shut it down and discharged the HV lead to the chassis, but didn't get the usual spark from the stored HV in the doorknob cap. OK, I thought that maybe the doorknob cap that was good yesterday might have suddenly failed, but it threw a healthy spark when I discharged it directly at its terminal. That left only one possible culprit, so I decided to have a look under the HV rectifier socket at the 1-Meg, 1-Watt resistor between the the HV rectifier / doorknob cap and the corona ring / CRT anode. Bingo, that resistor was open. I need to go get some 1-Meg/1-Watt resistors on Monday.
Reply With Quote
 


Thread Tools
Display Modes

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 12:02 PM.



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