[rfeenstra]

I believe this amp is only rated at 20 watts. The 125 leslie was a low power unit with only 1 rotating speaker, not the horn and drum.. I believe the woofer was a 12". I used to work on a lot of leslies. Most of the higher power units used 6550 outputs. I'd hate to count the number of red plating Leslie speaker amps I've repaired! Many years ago, though. I still have a couple of sets of 6550's left from those days.