Re: Motor speed control via back-EMF detection

On a sunny day (Mon, 01 Sep 2008 14:09:09 -0400) it happened Jamie
<jamie_ka1lpa_not_valid_after_ka1lpa_@xxxxxxxxxxx> wrote in
<Q%Vuk.23339$Fr1.22033@xxxxxxxxxxxx>:

Oh, you mean they don't use centrifugal contact regulators any more? :))

That is exactly what was in the motors.
Somebody here? (...) did one of the latest walkman[s], and used a 3 phase motor,
driven by some micro or something.
As I have one, I can claim that the centrifugal ones worked a lot better.
Hmm, maybe I put it in the garbage... mmm lemme see... cannot find it...
mp3 solved that problem.
Strange, never would have thrown it out without getting that little 3 phase motr out...
maybe the jangling sound pissed me of too much ;-)
Was it an 'Aiwa?', strange ffwd / reverse mechanics too.

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