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
  #1  
Old 03-10-2016, 06:29 AM
timmy's Avatar
timmy timmy is offline
VideoKarma Member
 
Join Date: Jan 2011
Location: ferndale ny
Posts: 3,504
65 Maggie roundie

Ok so last year this Maggie I have has and still has a pic that should be brighter then it is and at the time I had checked I think it was the bias voltage on the video out tube and the voltage was not right and at the time I parallel another resistor to the 1250 ohm power resistor and the pic was brighter and the voltage that was needed came up . But there were 2 schematics that showed 2 resistors for the same chassis, 1000 and 1250 so when I added that resistor I had brought the ohms down to 1100 and the pic was brighter so I'm thinking of putting in a 1000 ohm 20 watt to replace the 1250 18 watt and leave it at that. Has anyone come across this with power resistors like the 1250 testing ok but when in circuit the value may change . It's a 65 magnavox and I think it's a clone of the 16 , but not sure.
Reply With Quote
  #2  
Old 03-10-2016, 09:11 AM
WISCOJIM WISCOJIM is offline
VideoKarma Member
 
Join Date: Sep 2005
Location: Grand Chute, Wisconsin
Posts: 2,452
Timmy - I think you should have continued one of your other 65 Maggie threads instead of starting a new one. That way people could see what other things you've changed or checked in trying to help you with your low voltage/dark picture problem. It always helps to continue a repair in one thread to keep people updated and interested in helping. Mistakes made or something overlooked in the details of the earlier threads may clue readers into new ideas of what is going on in your set.

.
Reply With Quote
  #3  
Old 03-10-2016, 10:57 AM
timmy's Avatar
timmy timmy is offline
VideoKarma Member
 
Join Date: Jan 2011
Location: ferndale ny
Posts: 3,504
True but I thought that resistor was the culprit because I lowered the ohms and it did improved because there was something about where the voltage comes from for the video output tube and that resistor was responsible for the power in the circuit for the video.
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 08:43 AM.



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