I finished breadboarding the waveshaper last night. Here is the schematics (not bug checked though) and a few photos of the output waveforms from the sub oscillator. The saw wave looks like crap but that is because I used a function generator without saw output as the source of the original wave (using a triangle wave with a very unbalanced center in place of the saw). It will look a great deal better with a real saw wave input.
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| Full waveshaper circuit. Note that the sub saw output has the same polarity as the input. It is also possible to get an inverted output. |
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| Square wave (top) and square wave sub oscillator |
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| Pulse wave and square wave sub oscillator |
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| Saw wave and saw wave sub oscillator. Note that the spikes are artifacts created by the not-completely-a-saw-wave input (the vertical lines in the input wave are not fully vertical). This will disappear when using a real saw wave as input. |
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| 1 oct down and 2 oct down saw waves. |
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