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Old 8th Nov 2018, 11:17 pm   #3
emeritus
Dekatron
 
Join Date: Jan 2012
Location: Brentwood, Essex, UK.
Posts: 5,339
Default Re: Unidentified vintage components

I have a couple of the bottom item, which is a feedthrough for bringing out a connection through a metal barrier or the wall of a metal box. It would be soldered in place. I don't recognise the other two.
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