The Western Elec 901B power plant is used for up to 10 modular panels. My question is can you have two 79B2 power plants (max 4 modular panels) power 8 modular panels. The lines from the modular panels that are powered by two 79B2 would appear on same sets. Eg: A ten button set would have some lines from a modular panel powered by one of the 79B2 units and other lines from the modular panels served by the 2nd 79B2 unit. Wanted to be sure that I don't short anything out. Thanks for the advice! Jim

I never worked on those units but I don't think you'd have a problem.

Make sure the grounds on both power supplies are tied together (commoned).

Sam