MATRIXSYNTH

Yamaha SK30 Symphonic Analogue Synth

Siel Opera 6

via this auction

"It has 6 voices, each with two DCO's, which are detunable to give some fat sounds. Assign an LFO on the pulsewidth or DCO pitch and you have chorus.
It has 3 assignable LFO's
It has a resonant Voltage controlled filter on each voice.
It has a four stage envelope generator for the VCF and the VCA.
The MIDI responds to note on/off and velocity.
A good alternative to the Roland Juno 106 or Korg Poly 61M (neither of those were velocity sensitive)."

YouTube Uploaded by Orrsome1967 on Sep 3, 2008

"A quick demo of how to change sounds and save them on a Siel Opera 6 analogue polysynth"

KORG Mono/Poly vintage analogue synthesizer

via this auction

"Classic monophonic / polyphonic synthesizer. Play in poly mode for 4 voices, or else join all voices together in unison to make a nice FAT sound. Can also be triggered with cv and gate, and uses the 1v/octave system, so it is compatible with the Roland standard. Also has arpeggiator, can do cross modulation of voices, has a nice effects section, chord memory and heaps more."

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1974 Experimenting with Electronic Music, 1st ed.

via this auction

"Published the very same year electro-industrial pioneers Kraftwerk released their breakthrough album "Autobahn," here's a wonderful, rare book covering virtually everything you ever wanted to know about music synthesis and reproduction. Within its pages is an overview of the history of electronic music, from RCA's tube-based Mark I to modern solid-state synthesizers, with photos of the Minimoog and the Moog Sonic Six, as well as the Tonus ARP 2500, 2600, and Soloist consoles. For you tinkerers out there, the book also contains numerous construction projects, including two (2) separate transistorized theremins complete with detailed alignment instructions. All projects come ready-to-build with full schematics and parts lists.

Contents include:

Musical Electronics

History - Mechanical Tone Generation - Electronic Tone Generation - The Music Synthesizer

Sound and the Electronic Signal

Sound - Harmonic Motion - The Sine Wave - Additive Synthesis - Square Wave - Sawtooth Wave - Beat Notes - The Envelope - White Sound - Using the Complex Wave

The Instruments

Mechanical Tone Generators (string, wind, and percussive) - Experimenting

Microphone and Pickup Applications

Principles - Ceramic and Crystal Applications - Homemade Ceramic - Homemade Percussion - Dynamic Microphones - Magnetic Pickups - Homemade Magnetic Pickup - Condenser - Impedance

Building a Small Electric Organ

Tone Generation - General Construction - Tremolo Modulator - Mixer - Homemade Keyboards - Combining the Stages

The Electronic Modifiers

Tremolo Circuit - Envelope Control Circuit - Trigger Circuit - Attack Envelope Generator Circuit - Photoelectric Modulator - Reverberation - Chime Device - "Fuzz" Circuit - Sustain Circuit

Electronic Tone Generators

Multi-waveform Generator - Pink Noise Circuit - Two Theremin Projects - Automatic Percussion Circuit - The Almost Nightingale - Mini-Organ

Odds and Ends

Two-Channel Mixer - Three-Channel Mixer - Voice Selector - Variable Bandpass Amplifier - Active High-Pass Filter - Resonant Filter - Tube Filter - Tape and Echo

Apart from some moderate cover wear, the book is in very good condition. 180 pages. First edition, copyright 1974. This item ships WORLDWIDE."

Rare Dynacord EC 280 vintage desktop echo box

via this auction
"ow, this really is a unique specimen. It's pretty large, it's old, it crackles and sometimes pops, but everything works and when you get her tuned right, you will be in vintage audio reverbecho heaven. I'm sure Boards of Canada have one of these in their studio. It lets you route signals in all sorts of odd ways (I've used just this and a mixer to pretty amazing affect!) and create the most detuned, odd, dreamy and sometimes downright dreadful audio you ever heard. Because its some sort of weird hybrid, its pretty unpredictable, apart from that theres one knob that always delivers the detuned weirdness! you can feed anything into this and get amazing results, it sounds especially good after a preamp and before ableton live on a guitar signal. It's old, so there is some case damage, but she's 75% cosmetic. functionally its hard to say because its difficult to know what everything is supposed to do, but it all does what you'd expect, so it's 99% functionally perfect in my opinion. it's just got a lead coming out the back, no batteries, no PSU hassle. it works on UK voltage. not sure what else to say apart from that this is a close to unique opportunity to acquire a legendary and very rare desktop reverb unit."

Roland TR-606 drum computer with Analogue Solutions mods

via this auction

"The unit has been upgraded by the legendary Analogue Solutions with their tone mod upgrade. This upgrade box allows for huge tonal control over every single drum sound on this unit. This upgrade is £150 fitted.
The unit also has the full Analog Solutions MIDI upgrade. This mod is £150 fitted and it allows you to sync your analog beast with your ableton live for amazing sounds and fun."

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Sonigen Modular

"Sonigen Modular is a modular software synthesizer which offers you the freedom and flexibility of classic modular synthesis with high quality sound and efficient cpu usage.

At some point I will get a professional graphic designer to help with it, or if someone makes a decent skin for it I might switch to that. For the moment it's clear and functional, which is about as far as my artistic skills go.
Features:

Fully modular, you can add as many modules and patch cables as you want.

A fast and intuitive user interface. Layout is mostly automatic, cables indicate signal flow, and our (unique as far as I know) dynamic input handling reduces the need for extra mixer modules, and also reduces screen wastage from unused input terminals / knobs.

Modular voice and modular output effect processing both cleanly integrated in one window.

Everything is processed at full sample rate so there is no need to differentiate between audio signals and control signals. This makes it easier to use and also more flexible.

Just in time (JIT) assembly. Not only is the audio engine written entirely in assembler, but it is also dynamically assembled at runtime. This enables a whole class of optimizations that are otherwise impossible with pre-compiled binaries."

Windows demo version available at http://www.sonigen.com/.

Oberheim OB-X + PPG Wave 2.2 "Delusion"

YouTube Uploaded by retrosound72 on Mar 31, 2011

"vintage synth track by RetroSound

PPG Wave 2.2 Wavetable Synthesizer (1982)
Oberheim OB-X Analog Synthesizer (1979)
recording: multi-trak

the audio file and more:
http://soundcloud.com/retrosound/delusion"

Akai AX-60 demo2.wmv

YouTube Uploaded by ikworgek on Mar 31, 2011
part 1 here
"Akai AX-60 demo
All sounds (including drums) from the AX-60"

muron sniffer

YouTube Uploaded by horchacha on Mar 31, 2011

"new instrument
4 vcos, 2 lfos, vcf, vactrol vca, 8 step sequencer
for pitch, amp, low pass gate, 8 switches for vca/vcf emphasis all kinds
of crazy stupid crap 2 x 4011, 40106, 555, 324, lm386-4,
311, handfull of fets and transistors vactrols and wolves
chicken and fish

dave wright
www.notbreathing.com"