M-Z3R0 - circuit bent Casio PT-87 synthesizer

via this auction

"Based on [the seller's] popular casio pt82/87 configuration this new machine has been taken to a new level.

Fitted with resonant drone distortion, drum booster, lead booster, lo-fi toggle, extreme pitch,

LFO with rate and depth which can be routed to the pitch and drone distortion controls.

The rom cartridge has been removed and replaced with my modified delay circuit tailored to creating

anything from shifting ambience - glitches and noise,

right through to extreme and harsh death industial atmospheres.

This delay will also function as an ordinary delay effect if required.

The machine is fitted with a line input so external equipment can also be processed with the delay."

M-Z3R0 - circuit bent yamaha pss30

via this auction
"modified delay circuit which is tailored to creating

drifting abience, glitch and abstract sounds and harsh industrial noise.

The delay circuit has a 1/4 inch line input allowing you to process external equipment through it.

Extreme pitch control and a pitch LFO with adjustable rate and depth are fitted allowing this

machine to create tones similar to those of the commodore 64 and a number of other

8bit consoles and computers."


YouTube via manufacturedZ3R0 | March 11, 2010 previously posted

Sequential Circuits Pro-One & Vesta Kaza MIDI to CV

via this auction

1963 Bell System Analog SPEECH SYNTHESIZER Kit

via this auction

"This is a very cool vintage 1963 Bell & Howell Speech Synthesis Science Experiment kit. It's NOS, totally unused, and even comes in its original shipping box. Everything is in NM condition. This is an analog electronics kit that makes a simple vowel synthesizer. Could be a great platform for circuit benders or other DIY'ers to make a cool and unique sound generator of some sort. Please see pics for further details.

Please see my other auctions for more interesting items, and save on shipping if you win multiple lots."

via Pea Hicks of optigan.com

Update: New title and listing. This is actually from Bell Systems, not Bell & Howell as originally listed.

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International Karate (Chipophone)

YouTube via lftkryo | February 20, 2011 |

"International Karate, composed by Rob Hubbard in 1986. This one turned out to be incredibly fun to play! Hope you'll enjoy listening as well. Watch out for the two places where new loops are recorded on the fly.

Requested by jonblast."

Octatrack meets Tenori-On

YouTube via erasemusic | February 20, 2011 |

"a simple jam using the Octatrack and the Yamaha Tenori-On, no additional mixer or effects used."

Demo Matrix 1000 custom Programer device

YouTube via BIM0X | February 20, 2011 |

"a prototype of hardware controller for Oberheim Matrix 1000 (the blue & black stuff).
This is a demo of its integrated arpegiator : testing arp speed (from 1/16 of BPM to 2 bars of BPM). The device sends Midi clock et start message in order to stay synced with the drummachine"

Ignition

YouTube via gregbaumont | February 20, 2011 |
No audio. Just what it looks like.
"Oberheim Xpander tune procedure"

STG Wavefolder oscilloscoped

YouTube via doctorvague | February 20, 2011 |

"Suit and Tie Guy Wavefolder with sine and triangle inputs from SynthesizerDOTcom oscillators"

Korg MicroStation review for Keyboard Magazine - complete with '80s shredding!

YouTube via hamsterdunce | February 20, 2011 |

"More music on umop.com.

Here's an in-depth review of the sounds & sequencing power of the Korg MicroStation, provided to Keyboard Magazine readers for the April 2011 edition. There's a few '80s songs hiding in this demo for good measure! Hope you enjoy the review!"