MATRIXSYNTH

Tong poo Prophet-5

YouTube via tm19661015
"憧れのProphet-5･･･とうとう手に入れました。
しかしOHしてないので微妙に音がずれてる。
MIDIでTong Poo演奏･･･ピアノ譜なのでちょっと変ですが･･･やっぱいい音してるわぁ～ "
In Googlish:
"・Longing of the Prophet-5・finally got・.
But not OH, so I'm sensitive to sound off.
Tong Poo MIDI music in the piano score・・・so is a little strange・・YAPPA・wow I'm trying to sound"

Oberheim XPander sounds

YouTube via benbensimon77

Oberheim OBX

YouTube via audioplayground
"Rough video of my fully functioning Oberheim OBX 8 voice recently calibrated, Great sound!"

Oberheim SX (OB-SX)

YouTube via zamisers7k. Inside an OB-SX
"Looking at the guts of an OB-SX. Pretty neat synth, sounds pretty good...heavy too(weights a lot)."

Oberheim OB-X vs. SonicProjects OP-X

YouTube via virtualoberheim
"http://www.sonicprojects.ch
OB-X rev.2 and SonicProjects OP-X compared - not exactly tweaked the same but tried to copy the character"

Oberheim VSTi - OP-X - Prince, Rush, Jarre

Oberheim VSTi - SonicProjects OP-X

SonicProjects OP-X remote control (2.1)

Update: Some notes via http://www.sonicprojects.ch:
"Various methods have been used in the plugins world to copy analog behaviour. SonicProjects has made a new and different approach. By extensive exploring of the real device it became obvious that a big part of the organic feeling comes from the minor differences in sound between the voices. This has nothing to to with random behaviour but with device tolerances and slightly different trimpot settings. SonicProjects has implemented this behaviour into the virtual device. Each voice is a separate mono synth with independent signal path and comprehensive global tuning options."

Oberheim Sem Modular

YouTube via waveshaper. "Custom Oberheim SEM Modular beeing tweaked"

Oberheim 2 voice test part 1

YouTube via Hobbs360

Oberheim 2 Voice demo 1

Oberheim 2 Voice Sequencer Demo

"demo of the sequencer function on the oberheim 2 voice "

"Crushed Glass" - Dual TUBE Oscillators

via frequencycentral in this electro-music.com thread (see the thread for updates over time):
"I put this noisy little MF together a couple of weeks ago on the breadboard. It seems to be getting a bit of interest elsewhere so I thought I'd start a thread for it. It uses the application of low-frequency feedback oscillation (motorboating) to create two pulse oscillators with roughly a 25% duty cycle. The top osc is LF, the bottom one HF. Not a perfect device by any means, but fun and capable of making an unholy racket. I used two 6111 submini tubes, but it should work fine with 12AU7, possible 12AT7 and 12AX7 too - just change the pinouts and power the heaters correctly. I breadboarded it, recorded it, drew up the schemo then took it apart. I made it up again from the schemo a week later just to check it wasn't a fluke! I expect it would benefit from a buffer at the output. The pots don't work across the entire range. It would be cool to use a joystick instead of pots, and possibly feed the two osc into a ring mod. Fully open for hacking, development and general ear abuse. Oh, and if you do build it you're as crazy as me!

Soundclip: Crushed_Glass_Sample.mp3"