Here we have a demo of the Metalbox Dual Wasp filter, based on the CMOS filter from the EDP Wasp. This is a state-variable design that won't quite self-oscillate, but takes FM like a champ and has some very exploitable circuit features. This demo shows the Low Pass mode filtering a saw wave, with LFO modulation ranging between a slow sinewave sweep to audio-rate FM.
It is very difficult to make a video of this filter that is short enough to upload to You Tube! It sucks you in and boom, 15 minutes and 3GB go by...
That is fun stuff; would love to see what it looked like on an o-scope.
TheBandScanner 2 months ago
5:20 onward - Motorcycle at red light
kwote 2 years ago