MATRIXSYNTH

1985 ROLAND JX-8P KEYBOARD SYNTHESIZER PRINT AD

via this auction

"Ad measures approx. 8" X 10.5" inches."

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1976 ARP ODYSSEY SYNTHESIZER & ANVIL ROAD CASE PRINT AD

via this auction

"Ad measures approx. 8"X 10.5" inches."

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Roland Jupiter 8 Analog Synthesizer with Midi Interface

via this auction

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MOOG MEMORYMOOG+ with Aftertouch & Velocity

via this auction
"The Legendary MEMORYMOOG PLUS, with ADDED AFTERTOUCH, brought to you out of safe seclusion, nearly as pristine as the day it was manufactured. The FATTEST, RICHEST MOOG SOUND MADE in a non-modular system. EVERYTHING OF THE CLASSIC MINIMOOG X 6! That's right: 3 VCO's per voice, and there are SIX VOICES, with Program Memory and ANALOG VCO AUTOTUNE (Thank God!) Same controls, same location. Same incredible VCF. And sure, you can make the VCO's "beat" and "roll" with the FINE TUNE vernier control. This is the coveted PLUS version, with refined and updated POWER SUPPLY, MIDI and SEQUENCER. AND, unlike any other MemoryMoog Plus, this one has AFTERTOUCH and VELOCITY Sensing Keyboard (also available WITHOUT it)."

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MOOG MINIMOO with Velocity and Aftertouch

via this auction

"THE REAL THING: The Legendary MINIMOOG, in ABSOLUTELY MINT condition, fully restored by EXE (40 years experience) and functioning perfectly. WITH AFTERTOUCH AND VELOCITY SENSING ADDED TO THE KEYBOARD!! MAIN ELECTRONICS UPDATED FOR MORE STABLE VCO'S. NOW "THE SOUND" WITH THE EXPRESSIVENESS ONLY AN AFTERTOUCH KEYBOARD GIVES.

The MINIMOOG had several VCO versions. While they all generate the sound the same way, (so "the sound" is always there no matter which version you use) the earlier versions tended to temperature-sensitive at times, and thus drifted in tuning, requiring constant tweaking during performance. That is what you will likely get on other Minimoogs that show up. SOLUTION: Confirm the VCO's are of the LATEST REV. That's what's shown below, and included and calibrated in the MicroMoog MAX here. These were only available in the very latest MiniMoogs."

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Inside a Kawai SX240

flickr set By kb_cheapmods
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This is the Kawai SX-240, an 8-voice, 2DCO hybrid analog synthesizer from the early-mid-1980's. The layout and color scheme are very attractive, but the sound is even better. The only limitations I can see for this synth are: 1. DCO2 is square wave only; 2. there is only an alpha dial for altering sounds (not so bad); 3. the MIDI spec is very limited.

Because they are rare and there are no pics of the internals on Flickr, I wanted to photographically document it. I wish I had a better camera, though!

I got this off ebay for relatively cheap. Was stuck on one sound, had a tweaked bender, and missing the large rotary knob. It was pretty dirty when it arrived, so I cleaned it up. The electrical problem was due to two open traces on the digital board from slight battery corrosion. I removed the old NiCd battery, thoroughly cleaned off the PCB, and jumpered the open traces. I replaced the battery with an Li-ion CR2032 (first installing a diode to disallow charging when plugged in). I then restored the presets and voila - back to life!

Other mods I made were to replace the dedicated power cord with a 3-prong IEC socket. I also used a very nice big aluminum rotary knob to replace the missing plastic alpha-type knob."

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Critter and Guitari Pocket Piano = FUN! (demo 1)

YouTube via bigcitymusic | November 26, 2010 | 3 likes, 0 dislikes

"The Critter and Guitari Pocket Piano is one of the coolest toys we've had the pleasure to come across in quite awhile. It's very portable at 10 inches long and it weighs just a pound. The built-in speaker plays nice and loud. You can also run it into an amp or console from the 1/4" jack on top.

There are six modes: Vibrato Synth, Harmonic Sweeper, 2-Octave Arpeggiator, Octave Cascade, Mono FM Synth and FM Arpeggiator.

There are 4 waveforms: Sine, Square, Triangle and Sawtooth.

The Pocket Piano operates from a standard 9 volt battery or a 9 volt wall wart (positive center).

More videos coming."