synthesizer-controlled equivalent sound as produced
tuneable VCOs which supply rectangular output
One of four identical KOV (keyboard output
fast opamp types ensures linear VCO operation well
linearity of the voltage-frequency curve relevant to
The outputs of buffer opamps Ar . . . A4 (ICI, Type
rail grounded. rectangular VCO output signal has a 50% duty factor;
if not, adjust the relevant preset.
As the four VCOs lack a linear to exponential KOV
type. KOV signal whose frequency doubles

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