MATRIXSYNTH

Sequential Circuits Prophet-5 Rev 2 with MIDI

via this auction

"The Immortal Rev 2 Prophet-5 - with Kenton MIDI Retrofit in excellent working order and pretty clean condition. Serial Number = 507

Extensively serviced and calibrated. New Battery installed, new tantalum power caps on voice board. Most of the analog Op-Amps and many CMOS logic chips were replaced with new and socketed for ease of service in the future. All 5 voices sing and in tune. The Casette Interface works properly. A Powerful MIDI interface is independent of the on-board processor and provide control over
Wheels, filter Q and Rez, Volume, Prgm Change, and, of course, Notes."

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YAMAHA CS-10 Analog synthesizer 1977

via this auction

Note the seller has one more and a CS15 listed here. CS-15 captured on MATRIXSYNTH-B.

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Yamaha CS 5 analog monophonic synth

via this auction

Mellotron overdubs for Anima Morte

YouTube via RothHandle | August 22, 2010

"Another little teaser from the Anima Morte sessions...This time it is the Mellotron # 563 that gets a beating using the Sonic Alienator, Moogerfooger low pass filter and the Boss PS-2...I think the Echoplex is involved as well...

The original sound is the MK I moving violins and celloes as well as an effect sound from the BBC.

This little snipet was filmed and edited by Martin Gustafsson, the bands official photographer and film maker. They are working on a small documentary that will come with the album...a sort of how-we-did-it thing"

real time speech synthesizer

YouTube via EA78751 | August 23, 2010

"Designing a phonetic speech synthesizer with real time input from PC keyboard. Lattice CPLD interfaces kbd with vintage SP0256-AL2 speech chip. Not connected to anything else."

Arp Quadra Membrane Buttons

YouTube via selectimputor | August 22, 2010
via this auction
"A demo of the working (with ease) membrane buttons."

via this auction
"Legendary ARP Quadra Analog Synthesizer. 4 Synths in one. A Monster Bass Synthesizer. Polyphonic Analog Synth, String Synthesizer, and 2 Oscillator MonoSynth. There is also an external input. There are CV controls for the bass and lead synthesizers. Take Note! All the buttons, and sliders on this synth work! There are 15 broken sliders, and 2 slider caps missing from the non broken sliders. NOTE even though they are broken, they still work, and I can adjust all of the broken sliders with my finger. If you replaced the busted sliders, you would have a most excellent condition quadra."