MATRIXSYNTH

MOOG Sound Producer

via these auctions where you'll also find Cynthcart and Prophet65 for the C64.

"Moog Song Producer (MIDI and Trigger interface) for the Commodore 64, with sequencing and MIDI-processing software. The Moog Song Producer boasts:
* 1 MIDI in
* 1 MIDI thru
* 4 (!) MIDI outs
* 8 drum trigger outs
* 2 Footswitch ins
* 1 Clock/sync in
* 1 Clock/sync out

That means the Song Producer’s capable of interfacing your MIDI and pre-MIDI gear. This item is in great condition and includes the original box. Just check out the photos. It include:
* Song Producer hardware interface
* Connection cable (it plugs into the Commodore 64’s expansion port)
* Ring-bound manual with software disk (and TESTED backup copy that I made)
* Original warranty card
* Technical service information leaflet (includes schematic, picture of circuit-board layout and complete parts-list)
* Quick-start/introductory guide (x2)

Perhaps most excitingly, though, is the possibility that---with the detailed technical information included---a competent C64 programmer could use it to control the C64’s SID chip through MIDI, as it just runs on a stock Commodore with a stock interface (the cartridge expansion port)."

dsPIC Signal Processing board

more info here
"This is a small project focused on audio signal processing using the Microchip dsPIC. It provides the following features:

* Microchip dsPIC33FJ32GP302 Microcontroller with 32kB Flash, 4kB SRAM, ADC, Codec interface, I2C, SPI, etc.
o Pin-compatible with other dsPIC parts for expanded Flash, SRAM, peripherals.
* Wolfson WM8731 stereo audio CODEC with up to 96kHz / 24-bit sampling.
* Microchip 23k256 SPI 32kB SRAM.
* Microchip 24aa256 I2C 32kB EEPROM.
* Off board stereo audio I/O (+/-5Vpp, AC-coupled)
* Off board analog CV / Pot port with 4 x 10V CV + offset pot.
* Off board analog/digital expansion port with 8 MCU I/O.
o Up to 2x 12-bit ADC inputs.
o Up to 8x GPIO with pulldowns for switches / encoders
* Codec expansion port with headphone driver output and microphone input
* ISP port for MCU development and debugging

The principle reason for this board is development and deployment of simple audio DSP applications."

Waldorf Blofeld - Deep Space

YouTube via vinyljunkie07
"I just love making these spacy evolving sounds with this thing, listen in stereo on headphones to realy apriceate what the synth is doing..
808 kit, drums and sequencing from MPC
Strings - Roland JX3P
Blofeld - lovely textures and fx"
Note the Blofeld Keyboard is on sale at Noisebug until July 31.

E-Mu EMU Emulator III

via this auction

Oberheim Matrix 12

via this auction

Oberheim Xpander

via this auction

note the XLRs

oldmanfury

via Gerald:
"I started up a semi-synth-related blog. Have written a couple of posts here: oldmanfury"

pictured:
"Andy's modular is mostly Frac-rack, populated with lovely Blacet, Wiard, and a few Metalbox CGS modules. Since his system is so uniform and professional looking, he wanted to get some high-quality panels to match. Here's a picture of about 1/4 of his modular (and his Niece knob-tweaking)."

MacBeth X-Series Backend Filter

via Mr. Array, via Muff's Forum
"- hi guys- well my plan was to have the grounded control for the envelope EG- my experience of using a bipolar control- though neat- makes it tricky to find an accurate zero point between the - and the +. Sometimes I want no envelope present at all- so when the EG control pot is at zero there is no chance of mild sweeping. This is important when approximating 1V/Octave tracking. This EG input control is normalised to the positive going envelope- but can be overidden by patching the negative envelope- or indeed, any othe control or modulation source!

Regarding taking the filter output and feeding it back through one of the audio mixer pots- thats a great idea- I'll look into that tommorow.

And yes- there are the potentiometer controlled inputs- its a small three input mixer! I have tried to put every 'angle' possible on this thing- and hopefully I have! I don't see the justification in having to buy a separate basic mixer for this thing. With the dual oscs and noise- it's a perfect companion. hihi

One further module out of the six planned is a reasonably complex dual mixer that will have multiple inputs and some degree of cv, inversion etc...this will help utilise the multiple outputs from the dual osc module. I could have turned this into a single 84hp synth- but splitting the idea in two allows for thos who want more than one dual osc and or backend filter the option to sonically 'go big'

Again- I appreciate all your feedback- I know what I like- but your suggestions that go out side of my box are most helpful. I'm designing this stuff for you the enthusiasts and it's great fun on the way!"

Eric Archer Drone Commander

on eric archer.net

"With a total of 9 knobs, the Drone Commander offers two manually-tuned oscillators and two LFOs, plus an unusually colorful and nasty filter. LFO1 is an analog variable-shape oscillator, and LFO2 is a pulse waveform that auto-synchronizes to LFO1 at a ratio of 2x, 4x, 8x, or 16x. Both LFOs can be routed to the filter for rhythmic patterns. A line-level output jack is provided for connection to amplifiers or effects."

see these posts for video and more.