The first one I played was one of these:
It was a lot easier to schlep than a real B3.
We were in a group, the keyboard player also played guitar. We learned Psychotic Reaction, and there wasn't a sax part we could force in the song, so he played guitar and I doubled on the organ.
At the end there is a 'psychedelic' 2-beat section. I would kick off my boot and play glissandi the organ with my foot. More than once, a gal from the audience commented that I was such a good organ player, that I could play it with my foot.
Ah. Show-biz rules.
Notes ♫