What is the Vidiot shape knob doing?

I searched on the form but can’t find a straightforward answer. What exactly is the Vidiot’s shape knob doing?

It controls a crossfader between the horizontal and vertical oscillators, using different oscillator outputs for the diamond (triangle outputs) or circle (sine outputs). If you patch the H and V triangle outputs from the Vidiot to a Cadet crossfader and sweep the knob, the result looks identical to sweeping the Vidiot shape knob and looking at the Vidiot diamond output.

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CV control over the shape knob seems like an odd omission on the Vidiot, it’s such a effective modifier.

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Totally. Wonder if there’s a way to mod it…

the shape knob is a rotary switch (if I remember correctly) so CV control is more difficult probably

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The Cadet Fader module does it. If you have any interest in DIY I highly recommend the Cadets as a way to expand the Vidiot. The parts sourcing is not fun but once I had all the parts I had a great time assembling them and learned a whole lot about how the Vidiot and video synthesis works. It also made me appreciate how much value goes into the LZX modules.

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You could also use the fader in Bridge or Pendulum.

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