Hi, I was wondering if it's possible to bridge a 2-channel tube amp. I have an older (70's?) Fender PA100 tube amplifier. It has two 1/4" output jacks and says 100W RMS (220 Peak) @ 4Ohms on the back. I would like to run this amp in to one 4Ohm cab, and would like to get the most power out of it. The only amps I've ever bridged were car amps, where you run a cable from the positive on one channel and the negative on the other channel to form one bridged channel. If I am running my cabinet out of only one side of the amp, I'm only getting half the power available, right? Thanks!