Is this a Univibe?

[beaubrummels]

I'm intrigued. That's a great idea.

The vibrato raises and lowers the volume like when the horn is rotating away from you, and the flanger handles the doppler effect of the sound. When synchronized to the same speed, sounds pretty authentic.

[maug2122]

It's a Leslie.
I use my Univibe patch on my old Digitech RP-12, some tremolo from an RP-1 and a touch Detune or Quad Chorus .
Every once in a while, I whip this puppy out .