I have managed to get all the lamps, and all the tip and ring connections figured out. I know one side of the a-lead but for the life of me can't figure out the common a-lead. I'm thinking it must go through one of the relays or something. I also was able to get the dial to work without modifying anything in the phone. Maybe something on the board makes the set polarity sensitive, which makes no sense with loop-disconnect dialing, but alas, it does dial now. I'm still trying to figure out how I'm going to get a ringer and a buzzer in there, as there are VERY FEW spare leads, and no access to any of the mounting cord leads because they are all terminated on plugs that connect directly to the key strip or the main PCB. Hopefully Uncle Arthur will come through with a schematic.
