Videokarma.org

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

Notices

We appreciate your help

in keeping this site going.
Reply
 
Thread Tools Display Modes
  #1  
Old 06-24-2009, 02:32 PM
Jeffhs's Avatar
Jeffhs Jeffhs is offline
<----Zenith C845
 
Join Date: Feb 2003
Location: Fairport Harbor, Ohio (near Lake Erie)
Posts: 4,035
Zenith MJ1035 volume control question

The volume control potentiometer in my Zenith MJ-1035 radio is pretty much shot, resulting in very, very weak sound (almost inaudible). The radio, however, brings in stations like crazy with a short antenna connected, even in my small-town reception area 40+ miles from the Cleveland FM stations (I can see the stereo indicator flash on and off as I tune across the dial, so the signal circuits must be plenty healthy, and the problem is more than likely with the audio stages). I see from the schematic that the volume control used in the MJ1035 is a 2-megohm dual pot. I'm wondering if any other type or value of potentiometer will work (I'm sure I have a few small pots in my junk box). I'm not interested in stereo sound; all I am interested in with the Zenith is to get it playing again, if only through the radio's own speakers in the cabinet or through the extension speaker.

Thanks in advance. This radio has been sitting on top of a chest of drawers in my bedroom for months, and I'd like to get it singing again. This MJ1035 is much, much too good a radio to be sitting around doing nothing; I never intended it to be a so-called "shelf queen" and do not intend to get rid of it.
__________________
Jeff, WB8NHV

Collecting, restoring and enjoying vintage Zenith radios since 2002

Zenith. Gone, but not forgotten.
Reply With Quote
  #2  
Old 06-26-2009, 01:54 PM
Reece's Avatar
Reece Reece is offline
VideoKarma Member
 
Join Date: Jul 2004
Location: Cleona, PA
Posts: 2,178
Hi, Jeff; are you sure it's the volume control? If you short across the center terminal and high side of the control you should get blasting maximum volume if the control is bad as you've taken the control out of the circuit. Also: touch finger to center terminal of control and you should get a loud hum if audio stages are OK.

Reece
__________________
Reece

Perfection is hard to reach with a screwdriver.
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 10:19 PM.



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