MATRIXSYNTH

ROLAND SH-5

via this auction. More images here while they are up. You can read the back panel input and outputs in the shot below. Note see the comments of this post regarding contact spray.

"Sound is very unique and recognizable early Roland. The closest I can think of is System 100, which still doesn't have all the functions of SH-5. Later Rolands definately sound more sophisticated, like SH-7 or JP-4. The sound could be described as raw, aggressive and alive. It's not meant to replace your MOOG for basses but it's greatness lies in different areas. Like modular type of pads, sequenced percussive sounds, arpeggios, fuzzy solos.. it does that really well."

Roland Jupiter-8

via this auction
"The Roland Jupiter 8 is one of the best sounding and most playable analog polyphonic synthesizers from the 1980's. When it came time for me to purchase my first poly synth I played them all: Prophet 5 and Prophet 10, Rhodes Chroma, Yamaha CS70M, Memorymoog, Oberheim OBXa, everything I could get my hands on. I kept going back to the JP8. It has a great fat sound, live performance playability, relatively stable tuning (after she warms up any drifting is musically realistic and adds to it's warmth), and a voice architecture that lets your creativity stretch beyond it's contemporaries.

Being an avid programmer I found it more flexible than the others with such things as: continuously variable oscillator mixing (unlike the Oberheim), cross modulation, envelope inverting, dual mode filter plus a high pass filter, full featured oscillator modulation, and a very musical arpeggiator. This unit is one of the early ones, purchased in 1983 and well taken care of. It is pre midi and the only modification done to it was to install a detachable power cable. I would assume it to be a 12 bit model due to it's age, which I understand is desireable and reputed to have a thicker sound. The serial number is 141263"

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Patchable Modular ARP Odyssey Mk I

images via this auction

Roland Boss PC2 Percussion Synthesizer

YouTube via prodman221. via this auction
"This is a rare piece of gear by Boss from 1984."

Knob controls are as follows:
# Sens: controls the sensitivity of the module (the threshold at which it is triggered)
# Pitch: controls the pitch of the Oscillator
# Decay: controls the length of the sound
# Sweep: controls the range in which the oscillator sweeps
# Rate: controls the speed/rate of the LFO wave that controls the pitch
# Depth: controls the depth of the LFO wave that controls the pitch
# LFO wave type: switches between a triangle and square LFO wave
# Oscillator wave type (mod): switches the oscillator wave type between a triangle, a square or a mix of both
# Attack (mod): bypasses the attack circuit for a softer attack

Morrison Digital Trumpet synth

via this auction
"This is a great example of a tremendous modern instrument horn well priced below it's true value... I've tried the Akai Ewi and EVI models and NONE of them compare to this instrument. I was playing bop heads like Ornithology and Confirmation within 15 minutes of opening the package! If you don't know what this is you owe it to yourself to go online and check out the full potential of this remarkable instrument: link"

Excerpt:
"MDT Brass-style MIDI wind controller, custom stainless steel mouthpiece, custom aluminum carrying case for the MDT, universal power supply with US plug adaptor, custom MDT connecting cable, MIDI cable, the Yamaha VL70-m physical modeling MIDI synth module with the Patchman Music TURBO VL chip pre-installed and tested, VL70-m Owner's Manual, printed MDT Owner's Manual, MDT Video Owner's Manual on DVD, TURBO VL instruction sheets, VL70-m power supply, original VL70-m factory EPROM, and VL70-m demo disk."

KORG Dela

via this auction

"Rare Korg Delta polyphonic analog Vintage synth (1979)"

YouTube via abertronic
"My video but not the exact synth for sale ( though exactly the same soundwise)"

synthesizers.com q960 (1 VCO)

YouTube via demokid2000
"My friend and I recorded this little video a cold winter night in Stockholm. Only one VCO is used. Sorry for the quality, the movie is recorded using a Nokia N95 cellular phone."

synthesizers.com with q960 and pro~one

"Synthesizers.com doing some VCF x-modulation and bass line. A Sequential Circuits Inc. Pro~One is used as bass drum. A Dynacord MDL-10 delay is echoing the .COM."

1970s Cracked Magazine

via Boing Boing, via Cartoon Brew where you will find more.

"I received several old issues of Cracked Magazine over the holidays and I couldn’t help noticing how one humor piece, predicting life in the 21st Century, was surprisingly accurate."

Fixing the MC-909 rotary encoder

"This is the MC-909.. It is my favourite synth because it allows a hands-on approach to sound synthesis. Even if it is targetet to the DJ market (which I am not!), it is capable of very interesting textures (and it has a nice sampler even if it lacks the velocity and key multilayering of the high-end samplers)"

more images and info on synth-diy.

cool frog

NoiseAxe - Picaxe based minisynth v2

YouTube via grandtippler
"More info here: http://www.gadgetgangster.com/79
The NoiseAxe is an easy to build Picaxe based mini-synth that plays a range of crazy sounds using only a stylus and photoresistor."