MATRIXSYNTH

The Magic Echo Music GEM Optical Theremin

via Magic Echo Music

"These GEMs are noise making art objects that are so much fun to play and perform with.

It is a single square wave oscillator that changes in pitch depending on the intensity of light exposed to it.

There is an additional LFO (low frequency oscillator) that can be switched on or off to modulate the primary oscillator.

The LFO is a Sawtooth wave that can create tremolo effects while oscillating at a higher speed. There is a speed knob to control its frequency.

There is also an additional CV (control input) 1/4" jack so you can use this with your other analog synthesizer outputs!

Outputs to both stereo headphones and your amplifiers. These GEMs get LOUD.

This video [below] was taken during its prototype stages, so the product looks different. You're looking at the real deal in the photos." Magic Echo Music formerly designed with Health Club Music that brought us the synth on a rope. You can see more of her new projects at www.magicechomusic.com.

YouTube via magicechomusic | October 27, 2010 | "demo of the MEM GEM optical theremin prototype. Go to magicechomusic.com for more info."

Glitching a Circuit with a Trash-Picked Photovoltaic Array and a Desk Lamp

YouTube via RothMobot | January 03, 2011 |

"Resurrected Loud Objects Circuit (battery compartment popped off), Found Photovoltaic Array, Desk Lamp, Stereo Headphones. Moving the desk lamp towards the array causes the circuit to glitch."

Screw New Year resolutions

YouTube via DrOctave1 | January 03, 2011 |

"angry me angry synth = happy new year noises."

Sound Laboratory 1

flickr By Attila Hajdu
(click for more)

Device:Nikon D60
Focal Length:18mm
Aperture:F/3.5
Shutter Speed:1/6s
Exposure Comp.:-0.3EV
ISO 1600

365-345

flickr By gottalittlespacetofill

"Bear & friend play with the Roland D2."

EML sequencer refurbishment update

via George Mattson of Mattson Mini Modular. This is a follow-up to the EML Modular Restoration Project.

"The first pic is a repeat of the left module panel I'm making to add to the Sequencer compilation. The second pic is the cosmetically completed left module panel.

I had to take the 16" x 24" aluminum panel, lay out the module arrangement and find a point where I could gracefully cut the panel into two pieces. My oven isn't big enough to hold a 24" long panel. That makes the left panel two parts 'A' and 'B'.

The left ('A') side has two Syntar board PMS1's, a Syntar PMS4 and an MMM VC Filter.

The right ('B') side has another Syntar PMS1 board, two EML exponential amplifier modules, two EML VCO modules, an EML VCF module, an MMM 4x Mixer module, an MMM noise module and two MMM Buffered multiple modules.

The graphics were laser printed in reverse image onto Lasertran and applied to the panel. After baking for about 3 hours, I drilled the component holes then, applied 2 coats of satin spray-on polyurethane. After a day of curing, I added the panel components. I didn't melt off the decal this time with IPA. It was a PITA last time and I rubbed off large sections of graphics. The decal adds another layer of protection and totally disappears under the polyurethane.

Most of the circuit boards are attached. I ran out of mounting hardware and am waiting for their arrival.

The Syntar PMS1 boards consist of a Pratt-Read keyboard driver circuit, a gate generation circuit, a glide circuit, an exponential amplifier, a VCO and a slave VCO.

I made provisions for interrupting the keyboard driver and gate circuitry to allow patching of external 1V/O signals and external gates. I also provide 1V/O outputs pre and post glide simultaneously.

The Syntar PMS4 board contains a VC LFO and a sample and hold. The board will be mounted on panel 2-A and the LFO signals routed to Panel 1-A.

Once I have all of the boards mounted, I'll start wiring up the panel controls. Then, get started on the right panel.

G "

JagJoyJam.divx

YouTube via rezzn8r | January 03, 2011 |

"Using a Joystick and J.A.G. from Wiard Synthesizer to control multiple parameters in a patch.
Full patch details available @ http://noisesource.wordpress.com/2011..." [getting a 404]

Digisound 80 Modular Synth 80-16 Dual Resonant Filter

via this auction
"Digisound 80 Modular dual resonant filter (DRF) module number 80-16 with Curtis CEM 3350 chip... It was built from an original Digisound kit purchased in the early 1980s. The module is fully functional but requires +/- 15V power supply, potentiometers and connectors to complete (all readily available). A copy of the original construction notes will be included and can also be downloaded from http://www.digisound80.co.uk/digisound/index.htm where you can find lots more information about this synth."

OBERHEIM OB-XA SYNTH PATCHES BOOK

"VERY RARE ORIGINAL PROGRAMMED PATCH BOOK, FOR OBERHEIM OB-XA SYNTHESIZER. 26 A4 SIZE PAGES , 104 PATCHES."

Update via electrongate in the comments: "if anyone is interested in this patch book, I have a scanned copy available for free download at: [link]"