Duration 7:24
I used my audio analyzer software to calculate the drum speeds. The technique in this video is applicable determining the RPM of any machine using the same software for frequency analysis.
I show the wave form for 1 rotation of the bass speaker and the wave from dead stop to fast. The drum speeds are 43rpm (slow) and 395 rpm (fast). The slow motor is a common shaded pole motor, like those found on bathroom exhaust fans: 2,400 rpm. The fast motor is 1,400 rpm. The fast motor is very common, but, the end bells are specially manufactured for Leslie. You probably could find a motor and swap out the end bells. I haven’t tried that. This is just a suggestion.
Original Work, Copyright 2016 James D. Whiteside, II all rights reserved, For consideration only, no reproduction without prior permission.
