The drum-pattern selector. Dunno about you, but this has to be the tallest rotary switch I’ve ever seen….it’s almost a foot long….gotta feel sorry for the poor Mississippi housewives who handwired these things, for 75c per hour. (Sidemen were made in Corinth, MS.)
This is the control panel. It’s quite difficult/costly to get that kind of chemically-etched brass panel made today. The BLOCKS and CYMBALS knobs are rotary selectors that provide five different variations for block and cymbal patterns, plus totally disabling them. I must assume some of those home organists found a use for this–because the amount of switching required to implement the function is frightening. Above the start and volume knobs are two neon lamps that flash in time with the rhythm.
