Logo Salamander Music Systems
The Modules
The Philosophy

97 Dual Oscillator
101 Outside World Interface
103 Frequency Transmuter
115 Quad VCA / Mixer
147 Universal Active FIlter
154 Analog Delay
214 Digital Quantizer Sample-hold
215 Basic Quad VCA
220 Output
226 Basic UAF
215 Basic Quad VCA
228 LFO
229 Waveshaper
231 Random Voltage Source
232 VCO
233 Timing Gen Clock
234 Basic Low Pass Filter
235 Dual VC Slew
236 Dual VC Slew w/ Attentuators
237 Mix
238 DC Processor
239 Ring Mod / VCO
240 Programmable Envelope Generator
241 Low Pass, VCA, Harmonic Adder
242 Basic VCO
243 Four Voice Octave Selector <
244 Gate Switch
250 Memory System
256 Dual ADSR
Voice 400

Dual Oscillator 97
Dual Osc
There was never really much of an official data sheet on this one. I think there were only about 10-20 of them made. This is a really wonderful osc. It is based on E-Mu oscillator submodules, and is extremely stable. The pitch is set numerically via "lever wheels" which are the numbers in the upper right of the picture. There is an octave wheel and a semitone wheel. There is are a variety of modulation sources available via switches. There are normal and inverting exponential CV inputs, Pulse Width Modulation inputs, and an FM input (lin or exp) with its own VCA for FM index. The left hand side of the module is for waveshape mixing. The two joysticks set up a mix of waveforms. The top "A" joystick has soft waveforms from the two oscillators, and the bottom "B" stick has hard waveforms from the two oscillators. You VC can pan between the A and B mixes. The A and B mix also have external audio inputs.

Outside World Interface 101
OWI Pic OWI Block
The OWI 101 is intended to provide synthesizer-compatible controls and signals from a variety of sources typically found outside the synthesizer. A gain switchable low-noise preamp is followed by a filter which allows selective envelope detection. Preceding the envelope detector is a gain-controlled stage which allows expansion and compression of the signal prior to detection via VCA 1. It should be noted that the filter and VCA 1 are not in the signal path, but rather the control voltage path. A voltage controlled slew limiter allows separate control of the envelope's attack and decay characteristics. The signal is available at the output of the preamp and VCA 2. Raising "Envelope" allows the signal to be controlled by itself. Raising VCA 1 to some degree is necessary for any envelope to be detected. "AGC" controls the amount of expansion or compression of the detected signal. F/V (Frequency to Voltage) output provides an approximate representation of the input frequency an is useful for special effects. It is not designed to precisely track or in other words provide pitch to voltage conversion. Gates 1 and 2 are digital outputs which rise when the output voltage exceeds their thresholds. Gate is not allowed to rise unless Gate 1 is high.

Frequency Transmuter 103
Transmuter Pic Transmuter block
The Frequency Transmuter 103 provides a means of considerably enriching the sound of a single VCO. Other applications include rhythm generation and counting operations. Basically the device consists of a bank of digital frequency dividers (DC coupled) with parallel outputs which is preceded by an analog frequency multiplier (portions AC coupled). This allows you to create both harmonics and subharmonics from a signal input which will track perfectly the input signal. There are certain constraints. The frequency multiplier section (X2, X3, X4) is designed to be driven from a triangle wave whose amplitude must ve precisely set in order to cancel the fundamental, especially in the X3 section. It does, however, modify input signals in an interesting fashion by enriching their harmonics which makes in very useful for processing real time inputs which aren't triangle waves. The digital dividers are followed by seven low pass filters which offer control over the timbres of the outputs. The outputs are switch selectable into an output mixer which is a VCA. Zero crossing output provides a clipped output of the source selected by the rotary switch.

Quad VCA / Mixer 115
Quad VCA Pic Quad VCA Block
Four independent linear VCAs with high DC accuracy and wide dynamic range. Common output mixer provides 4 x 1 VC mixer. Mix in jacks allow patching of larger mixer configurations. Two VCAs ay be used independently of the output mixer. Extensive patch switching facilitates ping pong and location modulation effects with a minimum of patch cords. CV lag inputs allow clickless digital control of audio and control voltages. Signal input inversion (phase) permits ring modulation and inverted CV indexing. Optional exponential control or ultra low noise submodules available.

Universal Active FIlter 147
This one also never got a real data sheet. It's a 12 db / oct multimode filter. LP/BP/HP are all sent to an output mixer along with the signal from the first input. It has VC resonance. I use this one as my main filter.

Analog Delay 154
Analog Delay Analog delay block
The Analog Delay 154 has been designed especially for modular synthesizer use. It provides exponential voltage control of delay time and linear voltage control of resonance. It contains 2 4-pole voltage controlled low pass filters which continuously track the delay time so that the delay vs. bandwidth tradeoff may be made continuously and without the clicks usually associated with switching in discrete filter steps as in conventional units. A compressor limiter / expander provides wide dynamic range and low noise performance. Delays of nearly 1/2 second (480 ms) at relatively high bandwidth (5KHz) are possible with the inclusion of both delay submodules. Typically, to create the wide spectrum of effects possible with this module, the user operates the delay in conjunction with other modules such as LFOs and VC mixers. This preserves the modular concept and gives the greatest flexibility.

Digital Quantizer Sample-hold 214

Basic Quad VCA 215
Quad VCA
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Out 220
Out Block

Basic UAF 226
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LFO 228
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Waveshaper 229
Waveshaper Waveshaper Block
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Random Voltage Source 231
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VCO 232
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Timing Gen Clock 233
Clock Clock Block
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Basic Low Pass Filter 234
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Dual VC Slew 235

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Dual VC Slew w/ Attentuators 236
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Mix 237

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DC Processor 238

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Ring Mod / VCO 239
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Programmable Envelope Generator 240

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Low Pass, VCA, Harmonic Adder 241

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Basic VCO 242
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Four Voice Octave Selector 243
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Gate Switch 244
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Memory System 250

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Voice 400

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