Double MS20 VCF

Double MS20 VCF

2 filters in one with a possibility to bridge them and get a band pass filter.

When using the band pass mode, signal IN on filter 1 and out on filter 2.

For each filter :

  • Ms20-VCF clone based on BartonSynth version.

  • cutoff + resonance, with a switch to chose low pass or high pass mode.

  • CV control on the filter cutoff.

  • Self oscilation if resonance pushed to maximum, can be adjusted with 2 trimmers on each filter.

    • 1 trimmer for the sine wave amplitude (resVol)
    • 1 trimmer for the level at which the knob for resonance starts the self oscillation (resLvl)

Uses an DIP LM13700 not produced anymore, Will do an SMD version soon.

Regular build, I use ceramic capacitors but you can use film/polyester.

3D single MS20-VCF(front)

3D single MS20-VCF(back)

See bom