I picked up a Philco "Philcophone" model 901 (base) and 3 model 902 (remote) speakers as an intercom set at Kutztown yesterday. The cabinets cleaned up like new.
I want to recap 901 but am stumped by two bakelite blocks (photo) that have cross tabs for connections. 5 and 11 on the 1937 Philco Service notes;
http://www.myvintagetv.com/Apple%20P...01_Service.pdf
Some tabs are one side only. Some are cross connected. What am I looking at? 1937 Philco rookie here.