1973 VCF DIY The module features two independent

The module features two independent sections with wide range voltage controllable slew rates

Optional LED Driver x 3

You will need to choose the right transistor to get the correct Noise waveform as shown in the next photo

There is also a HOLD input that will freeze the envelope in its current state

The Steel Slim Boat features M3 mounting holes throughout the case and M4 mounting holes for installing rack ears if desired

1973 VCF DIY The module features two independentThe 1973 Paperface VCF is a state variable 2 pole resonant filter that offers lowpass, bandpass and highpass outputs simultaneously. 1973 VCF BOM 1973 VCF Panel The two CA3080's are not included in the BOM. This part can be purchased HERE Calibration Input a sawtooth waveform into the audio input of the VCF with the cutoff frequency control fully counter clockwise. Patch a cable out of the lowpass filter and monitor the output level. Adjust the FREQ