Yes, and all it takes is a synchronous motor. No big deal. I don't know if drill motors work that way.
Yeah, the old linear amp behind a frequency generator was limited to synchronous motors, but the modern switching drives provide enhanced starting torque, braking, and speed control on most any induction motor.
One cool low-wattage app for amp/syncronous motor drive is behind a precision tone generator to vary the speed of a Hammond organ tonewheel (from the inventor of the syncronous motor) to allow tuning it to match a slightly off-tune instrument.
Pretty hard to go OT in a thread tagged "Discussion"... I love it!
"[I]We're going all the way, till the wheels fall off and burn[/I]!"
Bob Dylan, from [I]Brownsville Girl[/I]
[I]"Time wounds all heels"[/I]
John Lennon, referring to the Nixon/Hoover deportation fiasco.
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