Pico synth – Wave_Shapers

nothing biggy, just what could be the waveshaper in the synth.waveshape_01

R5, R14 and R2 are trimmers.

This can be contained in a single package (TL074).

I must admit that the triangle waveform isn’t pretty on the scope. You can cleary see a glitch where the diodes switch on and off. But could it be audible when filtered ?

A bit of gain following the triangle (diode loss) to bring the triangle to the usual 10VP-P is needed, as well as for bias the triangle corectly around 0V. Obviously, the stage isn’t on the schematic, silly me.

 

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