Thanks Roman

James M


>
>Hi Jim, here's one i've been using for years;
>http://www.romanblack.com/encoder.htm
>
>It needs some motor load (ie brush current) to
>work and its not great for wide speed control.
>It is ok for a simple tacho or for relatively
>constant loads like fans, spindles etc. :o)
>-Roman
>
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