Sound Modifier by LM324
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Four shape-controls portable unit
Wide variety of output waveforms
Compared to common Fuzz-box devices, the Sound Modifier circuit allows a choice amongst a wide variety of output waveforms, thanks to its capability of mixing three different modified versions of the input signal.
This stand alone unit, primarily intended for electric guitars, is based on a low power quad op-amp IC and draws a very low current from a common 9V transistor battery.
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