MATRIXSYNTH

Arp Rhodes Chroma Analog Synthesizer w Midi CC+

images at this auction

Serial # 21030348
For more info on the CC+ upgrade and the Chroma in general, visit the excellent Rhodes Chroma site.

Analog Synthesizer Modular Mixer With Filter

images at this auction
"Mix Mix Mix.
One little mischevious devil here.
...and a funky mix.
Mix Machine is a VOLTAGE-CONTROLLED 8-channel mixer.
It is also an 8-channel FILTER BANK.
It is made using 8 CEM3379 chips by Curtis Electro-Music!
Audio inputs = 8 of them!
Voltage-Controlled PAN = 8 of them!
Voltage-Controlled AMP = 8 of them!
Voltage-Controlled LOW PASS FILTER = 8 of them!

Voltage-Controlled Resonance = 8 of them!
Audio Outputs = Stereo or L = mono. This can be handy.
and a Master Volume knob. "Main Gain"
There are 32 Control Knobs!
They are labelled as Attenuations, but are in fact, Control Knobs.
There are also 16 extra unused jacks on the back.
They were not used in this design, but you could use them for your own mods if you like.

The Filters are 4-pole 24dB and can self-oscillate.
There are just so many possibilities here.
Turn up the Volume!
Turn up the Resonance knobs!
Hear the tones drone!
Filter your guitar!
or Drum Machine?
or Akai MPC sampler with multiple outputs! Filter it 8 ways, please.

Plug LFOs, Analog Sequencer, or Sample+Hold into Control Input Jacks.
Use with a MIDI-CV Converter for Programmed PANS and FILTER SWEEPS.
It has an internal power supply and comes with a cable for USA 117volts AC."
More info and samples here.

Roland Vocoder SVC-350

via this auction

EFM Wildcat analog modular synth board

via this auction
"This is a blank printed circuit board for an EFM (Electronics for Music) Wildcat modular synth. This is basically a diy modular synth on a single board. This auction also includes the special PIC (programmable integrated circuit) chip required for the midi to CV part of the circuit...

Here are a couple of good online sources of info about this board:

www.dontlisten.com/sdiy/wildcat/efm-wildcat.pdf
http://www.yusynth.net/Wildcat/index.html
I believe this is the rev1 board."

King Capitol Punishment Utopia Synth

images at this auction. Note this one is via Big City Music. Be sure to see this video.

"The Utopia Synth by King Capitol Punishment is an analog two oscillator noise machine with to modulation sources. There are range switches for each oscillator which can extend the speed of oscillation from almost sub-sonic to grinding high-speed FM. The modulators can be switched off. There is also a master volume control on the side of this little beast. Requires 9 volt negative center adapter, not included."

synthPond 2.0 Tutorial

synthPond 2.0 Tutorial from zach on Vimeo.
"A simple video tutorial showing basic uses of all of the new (and old) features of synthPond 2.0"
follow-up to these posts.
You can get synthPond here:

vintage synare 4 drum synthesizer

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iOscilloscope

via Gabe Jacobs Productions

"iOscilloscope turns your iPhone into a virtual oscilloscope, one that will measure sound waves in real time. You may view the sound waves in Fast Fourier transform mode or Sonogram mode. Try to find all the different sound waves you can make :)"

You can get the app here:

buchla 200e filter groove

YouTube via hyperguy61
"a little riff coming from the buchlas. the 291e is sequencing along with the 250e. 7 against 5. the 144 is modulating the 291e filter , the 158 is the the sound you hear. the touch plate is changing the pitch of the 158. enjoy."

Buchla ring mod riff

"a variation of the filter mod patch. all audio from the 200e but going through the 111 ring modulator. the 123 is choosing pitches of the 261s mod and principle oscillators along with the keypad."

Buchla 200e and Genoqs Octopus

YouTube via hyperguy61
"A Buchla 200e and Buchla 100 being controlled by a Genoqs Octopus. It's a wonder i get anything done in my life. i could easily spend the rest of my days in front of these beautiful machines. sorry for the crappy audio...i'll post more when i figure out how to do it."

Buchla 200e little melody