View Single Post
Old 2nd May 2013, 9:06 pm   #205
Ed_Dinning
Dekatron
 
Join Date: Jan 2004
Location: Newcastle upon Tyne, Tyne & Wear, UK.
Posts: 8,171
Default Re: Another unusual plug and some other questions

Hi Gents, this type of plug was used in schools and homes in NE England as part of the Reddifusion "wired sound" system. It used 100v line distribution and 4 programmes were available. Selector switch was usually by a rear window and a resistive "chain" fader was fitted to the speaker box. This connected to the selector switch by the plug/ socket shown.

Ed
Ed_Dinning is offline