via this auction
"This Macbeth X-Series Micromac D fully analog synth is in excellent cosmetic condition, it works as it should, no functionality issues. It has seen very light use.This is a rare synth, was made in the UK out of production, and hard to come by. Built like a tank. Solid enclosure and solid controls. No cheap Chinese plastic components here.
“The fattest vintage sounding desktop analogue synthesizer available.”
Sold with its power adapter for 220v.
A masterpiece by Scottish synth designer genius Ken Macbeth, this is Ken’s take on the classic Minimoog Model D concept of a 3-VCO synth with a 24db ladder filter.
Ken Macbeth is - besides Wowa Cwejman - the best boutique analog synth builder of our time, doing everything the old-school way of through-hole solering. This is true analog!
The sound that his synths deliver is simply out of this world and the Micromac D is no exception. Despite its desktop size it packs a heavy punch. Seriously - in terms of sound this is as good as it gets.
Here are the specs:
3 x 1v/octave tracking voltage controlled oscillators.
Oscillators 1 and 2 featuring 4 waveforms: sawtooth, square, triangle and sine. oscillators 1 and 2 feature pwm control inputs.
Oscillator 3 featuring 6 waveforms: sawtooth, square, triangle, sine, ramp and lower frequency noise.
Oscillator 2 can be hard synchronized to oscillator 1.
Oscillator 3 can be used as a modulation source, both in the audio range and the low frequency range. oscillator 3 can be used to modulate oscillators 1 and 2 as well as the voltage controlled filter. oscillator 3 can be disconnected from the main controlling cv.
Oscillators 1,2 and 3 feature separate control voltage inputs for external control sources.
Oscillators 1,2 and 3 have separate audio outputs (pre-mixer) for external proccessing in other systems.
Oscillators feature separate attenuated volume controls into the filter.
Oscillators 1,2 and 3 feature both course and fine tune frequency controls that have a range above and below the audio spectra.
Noise generator features white noise with its own attenuated volume control into the filter. setting 6 on the oscillator 3 waveform control allows a lower frequency noise to be used for modulation effects and can also be used as audio source.
1v/octave voltage controlled filter:
24db/octave transistor ladder low pass filter. oscillates at high 'q'/resonance.
Tracking of the filter from the main cv input can be 0%/half/full (0v/octave, 1v octave and 1.5v/octave)
The filter also features a separate 1v/octave external cv input for other control sources.
The vcf is swept directly by its own envelope generator.
2 x envelope generators. ads/switchable release type. filter eg can be switch between a positive going envelope or an inverted envelope. filter eg can be switched to sweep oscillator 2 for hard synchronization sweeps. vca eg can be diconnected via an external vca cv input socket.
All analogue circuitry used in the design is the 'old school' through hole parts."
