Debugging my Tri-Sine waveshaper

[eric]

Isn’t the triangle out of the AS3340 only positive ?
See here how to fix that :

1222 Tuner VCO Module fixes/improvements

If anyone is interested here is level adjustment for all waves, with additional pulse wave reshaper to make it a lot sharper. Trimpots are used to recenter the wave perfectly at 0, as it always bothers me if its slightly off. You can remove the trimpots and replace them with ~242.2K resistor if you don’t care about that. [image] And here is sine shaper with commonly available parts: [image] In the following month or two I will release a new module that uses lots of good ideas from other de…

You can use that second unused OpAmp of the '072 for that.