Module is available as a DIY project only.
This Module is a prototype or in a concept phase.
Half Sub Oscillator, Half Difference Rectifier, DIY
A Module for my own system. Somewhat Mash-Up^^
Upper half is an AnalogLabSwiss - Sub101A
https://www.analoglabswiss.store/shop/30211447/sub-oscillator
Notes from AnalogLabSwiss:
This sub-oscillator takes the signal from a VCO and produces a square wave at -1 or -2 octaves lower.
Best suited for sawtooth, triangle and sine wave shapes or simple square waves.
The pot mixes between the 2 sub-octaves and when you set it to 50%,
it sounds exactly like the famous Roland SH-101 Pulse Suboscillator.
For this to work, you need to connect your synthesizer's oscillator output to the sub-oscillator input. You then get the suboscillator signal at the output. Mix it back with the original via an audio mixer to enjoy the juicy bass.
Lower half ins an NonLinearCircuits - Difference Rectifier (borrowed from Neuron)
https://www.nonlinearcircuits.com/modules/p/8hp-neuron?rq=difference
Notes from NLC:
The diff-rect is a hybrid of two basic op amp ‘building blocks’ – a difference circuit and a rectifier. Not sure if I have ever seen the two merged together before. It is probably a bad idea except for synth use, where it is a wonderful idea!
The Difference Rectifier has 4 inputs (two + & two -) and two outputs.
