I didn't know where to ask this question but this seemed like the right place, I apologize if its not. I'm restoring an old 1922 telephone (technically its an apartment intercom, but I'm turning it into a phone with circuitry I removed from a modern chorded phone as most of the original insides are missing anyway). The only issue I'm having is connecting the bells to a spot where they would ring upon an incoming call. I attatched the bells to a 9 volt and they worked. Is there a place on a standard phone line or on telephone circuitry where something is only powered during an incoming call but isn't powered when the reciever is picked up? I attatched some pictures of the modern phone whose insides I'm using. Thanks for any help, I know I may not have posted this in the right place. Thanks!
Edited by Tyler12464, 07 August 2014 - 05:01 PM.