MATRIXSYNTH

Simmons SDS V Drum synthesizer

via this auction

"19" rack mount Simmons SDS V drum synth head only, includes bass drum, snare drum, three tom modules as well as master sensitivity & mixer module. Unit is 115vac powered, has xlr trigger ins, xlr individual and mix outs. There is a hi hat xlr in but no module."

HARMONY SYNTHESIZER made by A/DA

images at this auction

"It measures aprox. 9 X 11 1/2 inches and weighs in at a meaty 6 pounds, 11 ounces. The case is cast metal and is extremely well built. These are hard to find (only 800 were made around 1980)"

CIRCUIT BENT 1983 BONTEMPI MINSTREL

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"The bontempi minstel analogue keyboard was built in 1983 and designed by guigiaro of turin,italy.he interestingly designed the volkswagen golf and the panda/punto for fiat. still functions just as bontempi intended,but now includes 13 modifications...

13 modifications
Custom metal control panel & Wood effect detailing
Chord modulation knob
Low pass filter knob

With on/off switch
(when in use the keys are disabled)
Rhythmic drum overdrive knob
8-bit crusher modulation knob
Arpeggio increase knob
On/off toggle switches:
Loose wire lo-fi
Snare cut
Bass drum cut
Bass enhancer
Feedback
Break down hold
White noise invader
Internal speaker has been removed to house modifications

Original features:
On/off
6 voices (organ,horn,oboe,strings,piano and harpsichord)
Effects: sustain and vibrato switches
Off beat l.e.d indicator
6 drum rhythms (waltz,tango,swing,slow rock,disco and latin)
Rhythm tempo adjust
Arpeggio/rhythm balance adjust
Master volume control
Arpeggio volume control

3 postition rhythm switch (off, synchro and start)
3 key modes (standard, bass&chords and single finger chords)
Pitch trimmer at bottom
Polyphonic 5/9 notes, depending on mode in use
1/4" aux line output
1/4" headphone out
12v dc in
Or
Powered by 8 'c' batteries (not included)
Comes with original box (ok condition) and original mains adaptor
Detachable key cover lid"

RC CIRCUIT BENT 1983 BONTEMPI MINSTREL ANALOGUE SYNTH

YouTube via djwidow420

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: