Welcome to Australia's only Vintage Radio and Television discussion forums. You are not logged in. Please log in below, apply for an account or retrieve your password.
Australian Vintage Radio Forums
  Home  ·  About Us  ·  Discussion Forums  ·  Glossary  ·  Outside Links  ·  Policies  ·  Services Directory  ·  Safety Warnings  ·  Tutorials

Tech Talk

Forum home - Go back to Tech talk

 Switch irregularity
« Back · 1 · Next »
 Return to top of page · Post #: 1 · Written at 3:29:26 PM on 1 February 2023.
Tallar Carl's avatar
 Location: Latham, ACT
 Member since 21 February 2015
 Member #: 1705
 Postcount: 2161

Recently I was working on one of the more modern Astor Mickey breadloafs and I found the neutral sides of the double pole switch neatly ( factory?) shorted .I cant for life of me work out why! Unless that side of the switch was faulty. It looked factory. Is there anyone here that can think of another reason. I had to replace the on/off volume switch anyway as the pott was completely open circuit.
I chose not to short the neutral and it works very well.

 Return to top of page · Post #: 2 · Written at 7:27:40 PM on 1 February 2023.
Brad's avatar
 Location: Naremburn, NSW
 Member since 15 November 2005
 Member #: 1
 Postcount: 7342

Back in the day, two pole switches were a requirement. You are probably right regarding the reason for bridging one side out. That pole could have been faulty and could even have been the active side originally.

A valve a day keeps the transistor away...

 Return to top of page · Post #: 3 · Written at 8:44:32 PM on 1 February 2023.
Johnny's avatar
 Location: Hobart, TAS
 Member since 31 July 2016
 Member #: 1959
 Postcount: 558

Nine out of ten switches that did not work recently in repairs of 50 to 80 year old radios.
Were due to not being used for so long that they were permanently on or off.
Stuck, and the internal spring tension not being able to overcome the friction.
Careful disassembly of the switch/switch pot, cleaning and operating fixed nearly all.

« Back · 1 · Next »
 You need to be a member to post comments on this forum.

Sign In

 Keep me logged in.
Do not tick box on a computer with public access.