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 Switch irregularity
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 Return to top of page · Post #: 1 · Written at 3:29:26 PM on 1 February 2023.
Tallar Carl's avatar
 Tallar Carl
 Location: Latham, ACT
 Member since 21 February 2015
 Member #: 1705
 Postcount: 2157

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
 Brad
 Administrator
 Location: Naremburn, NSW
 Member since 15 November 2005
 Member #: 1
 Postcount: 7304

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
 Johnny
 Location: Hobart, TAS
 Member since 31 July 2016
 Member #: 1959
 Postcount: 544

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.
JJ
 
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