Rare ZW BASSMACHINE Vintage Synth

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via this auction

"Looking online ZW Electronics is a Swiss/Italian company with not much history behind it and the "Bassmachine" was the only synth to have been commercially available in small numbers.

The instrument has a two-octave keyboard, an octave switch, tune, envelope controls and second oscillator switch with Detune.
This comes with 10 preset sounds with no much control over any of them.

The filter design is a Moog-style transistor ladder type filter, clearly identifiable on the circuit board unclear whether official.

A fantastic synth worthy of a museum or any studio and the "BASSMACHINE" standout text alone draws its own attention.
Search #zwbassmachine on instagram and you will see this very one played back in 2015!

A word brandished pretty loosely is rare, but this is no exception you will be hard pushed to find anything on this extremely rare monosynth and all mentions online or of anything non-working! Schematics are non-existent and this one is the only one of approx 100 that were made."