Roland System 100 Set with Original Boxes

Note: Auction links are affiliate links for which the site may be compensated.

via this auction

"All units are in their original boxes, with original manuals, patch leads, patch manual with templates and the
original receipt (one owner my uncle)
All units are in mint condition, fully working and have been PAT tested. This beautiful example of analogue
synth history deserves to go to a loving home or studio, where it can be appreciated
Will not sell separately.
Synthesizer 101

This is a self-contained semi-modular synthesizer with a 37-note (F-F) keyboard. It features an ADSR,
LFO, Portamento, a VCO (with pulse width modulation and a tuning knob from 10Hz to 10kHz),
white or pink noise, an audio mixer (with sliders for VCO, Noise, and External Input), a high-pass filter,
a low-pass VCF, and a VCA with input for LFO. There are also buttons for auto-glide and manual-glide
and an A-440Hz tuning oscillator. All of this in 21 sliders, five knobs, 14 mini-jack sockets,
seven switches, and three 1/4" jacks (for headphone and high and low outputs).

Expander 102
This is essentially a keyboardless Synthesizer 101, with a few exceptions.
It was designed to sit upright, behind the 101.
Instead of glide controls, the 102 has a sample-and-hold module with variable lag time,
and instead of noise, the 102 has a ring modulator.
The 102 also features weak and strong sync inputs and a mix cascade jack socket instead of the tuning oscillator.
Sequencer 104

The 104 is a 12 X 2 step sequencer, featuring variable gate time, series or parallel configuration,
switchable ranges, and buttons for Start, Continue, Stop, and Step.
It was designed to sit to the left of the 101."