Micromoog Oscillator "fault"

Caloroso, Michael E CalorosoME at corning.com
Wed Nov 10 21:41:41 CET 1999

Well, last night out of curiosity I hooked the Micro up to the oscilloscope.

Very interesting trait (or "fault" if you prefer) about the oscillator; the ramp shape starts losing its form starting at 8'.  The rising slope changes from a straight line to a curve as the frequency gets lower, the "elbow" of the curve rises toward the top.  When you get into the 32' range, the ramp looks more like a distorted 90% pulse waveform.  This trait is not dependent on the octave setting, it's a function of frequency.

This is *far* removed from a Minimoog ramp in the bass range.

Anything above 8' and the Micromoog ramp is a laboratory pristine example of a ramp waveform.

That may explain why Micromoogs and Multimoogs are better for leads than they are for bass, and why they cannot duplicate the Minimoog Bass.

Opinions (and mistakes) expressed herein are my own and not those of my employer.

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