Electromechanical scanner vibrato... anyone done it? Re: [sdiy] JH. Hammond Scanner Vibrato emulation: taking orders now

[anthony]

Before I dig into my Hammond M111 to fix it I had some thoughts to see if I 
could make an almost exact  copy of the Hammond's scanner vibrato using the 
mechanisms and the circuits they use - or as close to it as is feasible.
I was wondering inf anyone had already done it? What made me think of it was 
looking at the innards of a wurlitzer Sideman - which reignited my spark to 
make an electromechanical sequencer. I know - totally different subject, but 
I think ultra-laterally...

I think it would be cool to make a scanner vibrato with an actual motor 
spinning a rotor to the different parts of the vibbrato circuits. I don't 
think I'd use the temp changing mechanism of the Sideman because I want to 
take advantage of the unit's inertia as it tries to slow down (the Sideman 
has a drive wheel and a lever the moves another drivewheel towards the 
center of the wheel or to the edge to change tempo and tempo changes happen 
pretty instantaneously...).

I could get really whacky and make it run on a steam engine. Then I could 
make a calliope too (ins't that the pipe-organ-like thing that runs on steam 
instead of air? I know it's been done, but I want to do it again, but out of 
salvaged junk, post-apocalyptic style. Maybe a huge heroic marimba that 
could crush cars too?

Ah, medicine kicking in - rally bedtime now...
Anthony