[sdiy] DIY strobe tuner?

[anthony]

I can't remember if we've discussed this: anyone know of or has done a DIY 
strobe tuner? I'm talking about the kind with the spinning wheel, etc. etc.. 
What kind of motor do those use? I have a BIG universal motor I got out of 
an old Remington Rand adding machine (the case of which will be used for 
some kind of bomb-proof synth project...). I also have acces to some old 
Hammond M-series organs. Do those have synchronous motors? Is that the kind 
of motor? I seem to remember a discussion involving strobe tuners and the 
motor being the sticking issue...


cheers,
Anthony