MATRIXSYNTH


Tuesday, December 11, 2012

Buchla Quad

Published on Dec 11, 2012 by Ebotronix

Buchla System # 1
Alesis 3630
Aphex Model 104
Logic Ultrabeat
Korg Micro X Arp to midi
4 Tracks

Sonica Serge Synth Instrument, Frank Evantoff Number 490.

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"Sonica Serge Synth Instrument, Frank Evantoff Number 490.

One of very few surviving, and of even fewer fully working Sonica Instruments.

This example is in fine condition, no damage other than one small cosmetic scuff to base of body (see last photo). No corrosion on battery connections, original case, unmarked original instructions and original instrument to amplifier cable.


You are bidding on an extremely rare FULLY WORKING electronic synthesizer instrument by Frank Evantoff, called the Sonica. Number 490 of only 650 produced. Shaped like small lute with a guitar like neck which fits perfectly into the hand. By touching the frets on the neck the instrument produces notes best often described as between a sitar and a violin."

Custom Blue Synthesizers.com Modular

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"This is a custom-built modular analog synthesizer built by Roger Arrick of Synthesizers.com

This is a one-of-a-kind system.
Unused. Part of Roger's personal collection.
One year warranty
110VAC or 220VAC operation

MODULE LIST
4 Oscillators (VCO)
State Variable Filter (VCF)
3 Envelope generators
Mixer
Signal Processor
Ring Modulator
Noise Source
MIDI Interface
Multiple
2 Amplifier (VCA)
Sample & Hold
Signal distributor
Clipper/Rectifier
Instrument Interface
Pedal Interface
Connector Interface
Spring Reverb
2 blank spaces for expansion

Modules have been custom painted in metalic blue.

For details about each module, see Synthesizers.com"

Roland TR-606 Drumatix

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Perfect Circuit Audio (RSS)

ARP Analog Sequencer SN 1623 0031

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"FEATURES:

16 faders to set the control voltage at each step
16-step or 8 x 2 (parallel) step mode
Sequential or RANDOM sequence mode switch
Gate assign bus. Each step can output a gate out 1 of 3 gate bus outs - this is great for sending gates to different synths or envelope generators at once.
2 channels of voltage outputs - 1 for the first set of 8 faders and a 2nd for the other set. This way, you can use your first set for pitch and your 2nd for filter cutoff, for example.
2 quantizers. Unlike most analog sequencers, this one quantizes its outputs so that it will easily play stepped pitches -its much easier sequencing 12 tone melodic parts when you don't have to fine tune every step but at the same time, the quantized outs on this sequencer have a much narrower pitch range than the other outs. Also, you should note that you might have to recalibrate either your synth or sequencer (or both) to one another if you intend to use the quantize feature or the quantized pitches might not be exact. This applies to all ARP Sequencers. Tthe unquantized outputs will provide extended output voltage range.
Skip/off/reset switch, button, with input for external control
Step button with jack
Position 1 out jack
Clocked gate 1 out
Start jack, stop jack, stop.start jack, trig/gate switch, start/stop button, footswitch out
Clock frequency fader and FM fader with CV input
Pulse width fader with PWM (width modulation) in jack
Clock out with LED
Quantized outs A and B
CV input
Input A and B
Sequencer outputs (not quantized)
Multiple jacks (4)"

Pics of the inside below.

Elektron SidStation C64 MOS6581

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analoglsd (RSS)

Studio Electronics ATC-1 SN 1241

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analoglsd (RSS)

Sputnik West Coast Random Source

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"Sputnik Modular, West Coast Random Source. Buchla 266 Clone in Synthesizers.com 5U format. Excellent condition, small dent in lower left corner of module (see picture). Barely noticeable."

SSL Ian Fritz DoubleDeka Ultrasonic VCOv

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Synthesizers.com format module.

JHS SD-1 Pro Rhythm

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Rare analogue drum synthesizer from the late 70's from John Hornby Skewes (JHS). The SD-1 is a battery powered drum synth with sound shaping controls and a rubber pad which, when hit, triggers the analogue circuitry for an infinite variety of possible sounds from deep bass to high pitches to sweeping disco tones. It can be mounted on its stand to provide a drummer with a pre-determined sound of choice to augment his kit or it can be used as-is in a studio setting for hands-on tweaking. In the latter case this can provide huge amounts of sample material.

The controls are as follows:

- VCO 1 Freq.
- VCO 1 Square/Noise/Ring selection switch

- VCF Freq.
- VCF LP/BP/HP selection switch
- VCF Reso

- VCO 2 Freq.
- VCO 2 LFO/OFF/Squiggle (hf modulation) selection switch
- VCO 2 Modulation Amount to VCO1 or VCF

- Sweep VCO 1/2 Selection Switch
- Sweep VCO Direction/Amount
- Sweep VCF Direction/Amount
- Sweep Decay

- VCA Decay
- VCA Volume"

From JHS:

"The JHS Pro–Rhythm is a self contained drum synthesizer,featuring two V.C.O.s', a ring modulator, resonance control, L.F.O., white noise source, a sweep generator for oscillators, area V.C.A. Section. Thanks to it's advanced features and state-of-the-art circuitry, the JHS Pro Rhythm offers the modern percussionist an expanded form of electronic musical expression previously available only to guitarists and keyboard players. The control panel is rim mounted and designed for easy accessibility and fine adjustment, the control themselves are rationally laid out, and easy to operate. The Instrument is supplied complete with a chrome plated stand which is fully adjustable for height and synth angle. The drum head is a tough rubber pressure pad which gives good response and stick bounce. At certain settings it is touch-sensitive, responding differently to varying degrees of stick pressure. The casing is extremely sturdy pressed steel, finished in matt black. The instrument is powered by two 9 v (PP3) batteries, and is switched on by inserting a jack plug into the output socket. The Controls of the JHS Pro-Rhythm Drum -Synth are split into5 sections , which can be briefly summed up as follows, reading anti-clockwise around the rim of the instrument:

A. VCO1 this is the first oscillator and provides the main sound source.
B. VCF this is the filter which enables the player to add to or subtract from the harmonic content of the sound so as to alter its “colour”
C. VCO2 the second oscillator, which provides a choice between LPO (for modulation effects) and sine wave forms.
D. sweep this section generates and varies the rise and fall in the sound “envelope” as used in a lot of today's popular music.
E. VCA This section controls the overall decay time and overall volume. Only by constant experimentation can the musician build up his own individual repertoire of sounds and effects'"
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