Toppobrillo Triple Wavefolder - Manhattan Analog panel

Hi there, 
A DIY module that I'm only selling as I've run out of space in my setup! Experienced builder and been kept in a smoke-free household.

Here's the blurb from the Toppobrillo site:

"The facility for independent control over each folding stage provides multiple processing options for a variety of sources as well as more interesting explorations with timbre modulations/ frequency synthesis >/./,./>?? than preconfigured waveprocessing profiles----.

Each stage can "fold" (GENTLY) an input source inward on itself as it approaches a threshold set by the panel controls and cv;� For example, a sawtooth or a triangle input from a VCO can be bent into a sinewave, and beyond that- doubled in frequency, at constant amplitude... USE THEM IN SERIES AND THEY FOLD AGAIN AND AGAIN AND...

some things you can do with it, under voltage control, simultaneously!:

create complex timbres from audio sources- Possibilities are really limitless. you can control each series of harmonics via the BIAS panel controls. So the overall sweep thru the folds when using the VCALL/ MANUAL controls is very flexible- and since each stage of the folding process is VC'able, you can use different modulation sources simultaneously for wild animation/ phasing/ beating with a single tonesource.

The normallized DC bias at input 1B can be used to control the symmetry of the folding process, via the control knob. (WHEN THE INPUT IS NOT IN USE).

CV PROCESSOR for LFOs, envelope generators, sequencers or any control source. create multiple interesting rhythmic modulation sources from an otherwise dull one(s). useful in creating more complex, continuously variable shapes for modulation or timing.

accurately multiply/ SQUARE UP an input SIGNAL, shape your TRIangles and sawtooths into very pure! sinewaves, mangle your sinewaves or anything else into very unpure assymetrical fuzz, generate a COSINE functon relative to your VCO's TRI/SINE output (useful for quad panning, stereo modulation).. Do a couple of these things at the same time with different sources..."