Thread: Phones or intercoms?
View Single Post
Old 20th Feb 2018, 4:20 pm   #13
dagskarlsen
Heptode
 
dagskarlsen's Avatar
 
Join Date: Jan 2008
Location: Hakadal, Norway
Posts: 643
Default Re: Phones or intercoms?
The circuit is actually pretty equal to the one used one our door telephone system installed about 1980!
dagskarlsen is offline