Is anyone else interested in a solid state battery equivalent for the WS 58 ? If so, I'd like to know if you care whether it uses mostly Radio Shack parts, or if you prefer Digi-Key or the like. I have a nice simple design that should run the set, receive and transmit, for more than 50 hours on 8 D alkaline batteries and provides the A, B, and C voltages.. Thanks, -John