Videokarma.org

Go Back   Videokarma.org TV - Video - Vintage Television & Radio Forums > Vintage TV & Radio Tech Forum

We appreciate your help

in keeping this site going.
Reply
 
Thread Tools Display Modes
  #1  
Old 06-01-2017, 05:08 PM
Bill Cahill's Avatar
Bill Cahill Bill Cahill is offline
Super Moderator
 
Join Date: Mar 2005
Location: St. Petersburg, Fl.
Posts: 1,298
Post RCA TR29 Radio, tv table model

This set had been through the mill. Yet, when I finally got a raster on the tube, I also found radio was working on both AM-FM radio, I had also rebuilt.
But, thirty minutes later, the AM died. Fifteen minutes later the FM also died. Tubes, and, dial lights stayed lit. It will not re-start playing. Put other tested, known working tubes remained with radio dead. Tried spraying tube sockets with di-ox-it on all radio plugs going to tv chassis with no help. Can anyone help ?
Bill Cahill
__________________
"Tubes are those little glass things that light up orange unless there is a short.. Then they light up all pretty colors..."
Please join my forum.
http://www.tuberadioforum.com/
Reply With Quote
  #2  
Old 06-01-2017, 05:12 PM
Bill Cahill's Avatar
Bill Cahill Bill Cahill is offline
Super Moderator
 
Join Date: Mar 2005
Location: St. Petersburg, Fl.
Posts: 1,298
Question

While we are at it, does anyone have a spare chassis that I can use as a doner to fix my set?
Thanks.
Bill Cahill
__________________
"Tubes are those little glass things that light up orange unless there is a short.. Then they light up all pretty colors..."
Please join my forum.
http://www.tuberadioforum.com/
Reply With Quote
  #3  
Old 06-01-2017, 06:11 PM
Electronic M's Avatar
Electronic M Electronic M is offline
M is for Memory
 
Join Date: Jan 2011
Location: Pewaukee/Delafield Wi
Posts: 14,758
Check the B+ voltages, if those are good and you have an audio generator try injecting at the output grid and work your way back if you have sound, If good back to the detectors and you have a modulated RF alignment generator Start before the detector and work your way back towards the ant....Signal injection 101.
__________________
Tom C.

Zenith: The quality stays in EVEN after the name falls off!
What I want. --> http://www.videokarma.org/showpost.p...62&postcount=4
Reply With Quote
Reply


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 02:39 PM.



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