This Module is currently available.
Non-linear modifier which can transform a sawtooth wave into a sine wave x 3
Cat Girl Synthesizers CGS85 Serge Triple Wave Shaper built by Lower West Side Studio
This module is Ken Stone’s variation on the 1973 Classic Serge Triple Wave Shaper module.
To quote the 1982 catalog: The Triple Wave Shaper (TWS) is a non-linear modifier which can transform a sawtooth wave into a sine wave. This module incorporates three independent wave shapers for modifying synthesizer waveforms or for processing signals from preamplified instruments. Although originally designed as a wave shaper for our early oscillators, this module has been found to be a excellent modifier of electronic and acoustic sounds, and is highly recommended for subtle timbrel modifications beyond the range of simple oscillator/filter patches.
Each of the 3 channels supports a signal input with an attenuator. There are 2 control voltage inputs and both AC and DC outputs.
A Join switch connects the outputs of channels 2 and 3 back into channel 1 for some bizarre wave shaping potential. Each individual output is still simultaneously available.
These merchants probably sell this module. Huh?