Moog Taurus Bass Pedal Synthesizer

via this auction

Vintage Moog Prodigy

via this auction

"Early version 336A Moog Prodigy dual oscillator monophonic analog synthesizer in great condition. Professionally modded in the 90s with CV & S-Trigger inputs to control the pitch."

WMD Geiger Counter Eurorack Prototype

YouTube via bigcitymusic http://bigcitymusic.com/
"This is one of the craziest Eurorack modules ever. With CV control over sample rate, bit rate and the super-cool wavetable function, this thing is a monster! We're using a Cwejman squarewave oscillator and a Plan B Elf LFO to modulate the sample rate and wavetable. There's a CV amount control for all three CV inputs as well as a knob for gain/distortion amount. These little tiny knobs are awesome too!"

Waveform Permutation Hardware

YouTube via littlescale
"I've made a simple circuit that will generate all possible waveforms that have four bits of amplitude and are four samples long. It's very simple, and follows the same concept as my previous forays into this concept (which were all software based).

Basically, there is a counter that is 16 bits long, and is pulsed by a continuous square wave. This controls the speed of waveform change of the output waveform. Every four bits of the counter are fed into a multiplexer. There is a multiplexer for each bit of the output waveform, and so every first bit out of four from the counter is fed into multiplexer 1, every second bit out of four from the counter is fed into multiplexer two and so on up to multiplexer 4.

The output of the four multiplexers is chosen by a separate binary counter, which is clocked by an independent square wave. This controls the frequency of the output waveform. Thus, the output of the combined four multiplexers essentially "steps through" the waveform, and is then converted into an analog voltage using an R2R DAC.

http://little-scale.blogspot.com"

MFOS Sound Lab with Midi to CV converter

YouTube via PlanetSynth
"www.planetsynth.com
Just a little description of how to use the Sound Lab Synth with a Midi controller.
Thank you all for looking!!"

Simple analog envelope modulation - How to - part 3

YouTube via analogueak. follow-up to this post.
"Describing how I use a Roland piezo trigger and the ribbon controller to produce a gate signal. The gate output is sent to the gate input of the envelope. The envelope output is sent to the input of the amplifier, filter, and oscillator. Not trying to get to in depth. pew pew pew."

Meeting of the Knobs 2009 Gallery

You can find the full set of images here at synthesizers.com.

Pictured here:
Roger Arrick of synthesizers.com taming the dotcom modular

Mark Glinsky's Aries Modular

Mark Glinsky's Memorabilia (click the image and read the notes from Keith Emerson)

Cantos

flickr set by jeff pineau
(click for more)

shots of the Cantos synth museum

prior posts here

Note the EMS Synthi 100

Update via pineau in the comments: "Pictures taken by Stephanie D'Entremont."

Birdland BoardWeevil

Birdland BoardWeevil from Umcorps on Vimeo.

"Short demo performance on the BoardWeevil from Bugbrand (bugbrand.co.uk). Live and unedited.
BoardWeevil is connected to a noise gate plus some slap-back echo but no other FX or processing is involved." "Think of it as a riff on the sound design for Hitchcock's 'The Birds'"

Folktek Arts Magnetic Sequencer

"This piece was a collaborative effort between Ben Houston and Arius Blaze. It has no sound generating capability whatsoever and was designed specifically to control external anything so long as it's patchable."

More info and images at the Folktek Arts blog.

Folktek on ebay (I also added a link under the More Stuff section on the right)