Quad VCA

Designs used

2 x MFOS Dual VCA MFOS Project Page

Front Panel express file A100QuadVCAFinal.fpd


I decided to stack two MFOS dual VCAS behind one front panel. You can never have too many VCAs. As usual, LED sliders from Alpha and GW switches from NKK were used.

Sliders and a switch mounted on the panel PCB. Adhesive cushions used to raise the switches 1 mm from the PCB.

Panel PCB mounted on the Schaeffer front panel

I tapped the output signal for each VCA and fed it to buffered LED drivers to get nice level indications in the LEDs inside the sliders.

Panel with mounted sliders and switches

Next: 16 step sequencer