Yamaha RA50 rotary speaker/leslie - diyAudio
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Old 24th July 2008, 01:00 PM   #1
julianw is offline julianw  United Kingdom
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Join Date: Jul 2008
Default Yamaha RA50 rotary speaker/leslie

Please does anyone have a circuit diagram for the motor speed controller for this unit?

Mine runs but too slowly and sometimes grinds to a halt. There appears to be a magnetic pickup on the induction motor, so some kind of feedback system but I cant fathom it out without knowing how this bit works.
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