Thread: When were switches first used on mains sockets?
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Old 4th Mar 2021, 1:34 am   #7
emeritus
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Join Date: Jan 2012
Location: Brentwood, Essex, UK.
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Default Re: When were switches first used on mains sockets.
The scans are in Post#53 of this closed thread:

https://www.vintage-radio.net/forum/...t=71262&page=3
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