MATRIXSYNTH

YAMAHA SK 15 Vintage analog string/brass/organ synth

via this auction

"Very similar to the Sk20 just lacks some of the SK20'S features but soundwise pretty much identical . Great for string and organ sounds. Has a lovely ensemble effect . Comparable in sound to Roland RS202 synth."

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Korg MS-10 monophonic analog synth

via this auction

Rare Russian Analog Synth ALISA 1387 w/Case

via this auction

video below

"Russian monophonic analog synth ALISA 1387. It has a 3-octave keyboard, a modulation wheel, control knobs and regulators. The process of synthesis is performed with the 2 OSCs, 1 sub oscillator, noise generator, filter with ADSR, 1LFO, and wide range of modulation functions. The synthesizer plays a stable keyboard pitch thanks to quartz stabilization of oscillators.

ALISA consists of 7 main sections - OSCILLATORS (called TONE GENERATORS), MIXER, FILTER with ADSR (called FILTER CONTOUR), AMPLIFIER ADSR (SIGNAL CONTOUR), and OUTPUT section.

OSCILLATORS section has three subgroups - OSC 1-2 (called GENERATOR 1 and 2), and REGISTER (waveshape). Their parameters are the following:
- osc1: waveshape switch (pulse, saw, and square - can run simultaneously!), pulse width modulation (wave forms 1 and 2) levels;
- osc2: waveshape (saw/square), sync interval, sync on/off;
- register: 8'', 16'', 32'' and subharmonic; next - portamento on/off, level and global tuning.
MIXER section - osc's 1-2 levels, noise generator level.
FILTER - cutoff, resonance, filter vibrato, key follow.
FILTER CONTOUR - attack, decay, sustain release (called amplitude) also switched on/off.
SIGNAL CONTOUR - attack, decay, sustain (only on/off), release.
OUTPUT - main volume level, power on/off.
MODULATION section(left from keyboard) - mod depth wheel, mod purpose - osc/filter, waveform switch - saw/square, rate (called tempo).

On the rear panel, the CONNECTION plugs are located:
- line out plug;
- power source - 220V/50Hz, cord plug, fuse;
- external run - CV/GATE control plug on/off switch;
- phones out (located below Modulation section)
It runs on 220V AC (US customers will need an adaptor).

After the end of the auction, the buyer will receive a full set, which is shown here on pics: ALISA 1387, POWER CORD, FULL SCHEMATIC SET, ORIGNAL USER MANUAL, ENGLISH FRONT PANEL TRANSLATION, 5 DIN TO 1/4 JACK INSTRUMENT CABLE ADAPTER, FUSES!"

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KORG WAVESTATION A/D Synthesizer

via this auction

Never noticed the input level meter before.

Human Resistance Synth

YouTube via mike19822058 | November 04, 2010

"This is played by bridging the connection between the two plates.
For sale... http://www.etsy.com/shop/michaelrucci"

Minimoog patents

flickr By Ramcur

"the 3475623 is for moog modular high pass low pass filter by Moog , the 3733,955 is for a keyboards controler Invented by 2 guys. Reinagel and Zumchak , 3800088 is for the BODE FILTER invented by MR BODE with still as nothing to do with the mini ! So wrong label ( from a MOdular )a scarecrow ! Do mr moog as pay royalty to bode , Reinagel , and Zumchak ??? Was it to confuse the copycats ? hahaah . If someone know let us know !"

Yamaha CS5 Synth Cake

flickr By Pil and Galia Kollectiv

"based on the Yamaha CS5"

Check out the Synth Cake label below for more.

17 MS20 Style Filtering

YouTube via 7thDanSound | November 04, 2010

"This video shows two synthesizers.com multimode filters connected in series, one in high pass mode and one in low pass mode. This creates a band pass filter but with variable width!"

Korg Monotron Schematics

PDF at the bottom of this page

Neon Indian :: Filtatron :: Moog Sound Lab

YouTube via MoogMusicInc | November 05, 2010

"Check out Neon Indian experimenting with multiple filter modulations by running the Moog Filtatron into the external audio input of the Slim Phatty.

Sneak Peak at Moog Sound Lab, the new online show from Moog Music coming soon. Moog Sound Lab features artists from all genres experimenting with synthesis."