LDR-based filter with VCA

This module uses the same blackbox technique as the Shat-noir Phaser. The VCF is based on the Steiner diode VCF but this one uses LDRs rather than diodes and a CV control system to suit. The nice thing about this filter is you can feed different signals to the LP, BP & HP inputs then surf between them with your CV, quite different from regular filters. The VCA is really there to use up a spare op amp and is based on the Korg PS3100 VCA, works very well for what it is.

PCB set = USD 24
Panel = USD 22
assembled = USD 210

https://www.nonlinearcircuits.com/modules/noir0-ze