View Single Post
Old 11th Apr 2021, 1:06 pm   #1
dagskarlsen
Heptode
 
dagskarlsen's Avatar
 
Join Date: Jan 2008
Location: Hakadal, Norway
Posts: 640
Default "New exchange" from Norwegian STK (=STC)

Thinking about some modernizing so I got a "new" exchange Marked STK (Norwegian STC) but I have not a clue how to get it working. I just guess on 48V and this need help to learn how to wire it up. I'll probably need a ring voltage source, and a dial tone source, but where to connect it? The back board is wood painted slate as the exchange.
Attached Thumbnails
Click image for larger version

Name:	2021-04-10 16.06.22.jpg
Views:	278
Size:	77.0 KB
ID:	231460   Click image for larger version

Name:	2021-04-11 13.53.03.jpg
Views:	248
Size:	99.3 KB
ID:	231461  
dagskarlsen is offline