What size wire is best for signal input, power, and output? I have just gotten to the voltage test part in my assembly. I tried gauge 22 single strand wire for connection to a 15 VAC source. It worked for the voltage test, but it seems the pcb holes are big enough to use a larger gauge. Is the size important? The 22 gauge also seems to fit nicely in the signal input holes. Can I use it there? How about the outputs? Would braided wire be better? Any help would be appreciated.