Analogue Systems RS95e Oscillator

Enhanced precision voltage controlled oscillator

High frequency stability & excellent musical tracking over a ten octave range. Accurate waveforms of sinewave, sawtooth, triangle, square & pulse are available as separate outputs, the waveshapes can be independently voltage controlled. a wide range mode allows the oscillator to operate in both supersonic and subsonic frequency ranges as well as in the audio frequency range. Hard sync input for classic complex lead sounds. A high quality ten turn multiturn frequency dial allowing precise tuning of frequencies & incorporating a lock to ensure the dial cannot be turned accidentally. A perfect partner for the rs500e and rs510e modules to give the classic EMS synthi look and feel to any system.

The RS95 and RS95E are further developments of the RS90 Voltage Controlled Oscillator. They differ from each other only in the addition of a high-resolution vernier potentiometer (similar to that used on the EMS VCS3 and Synthi AKS) on the RS95E. Compared with the RS90, each offers extra waveforms, additional waveshaping, and a third audio output. Consequently, many of the details in this section are identical with those of the RS90.

Frequency

The RS95 and RS95E generate a particularly wide range of frequencies. The minimum - approximately 0.3Hz - is well into the subsonic range, so they will double as LFOs when required. This architecture emulates that of the Minimoog and larger Moog synthesisers such as the IIIC and System 55. At the upper end of the scale, they will produce frequencies of approximately 17kHz, which is beyond many people's upper limit of hearing.

CV-IN 1V/OCT

The RS95 and RS95E respond to the 1V/Oct standard adopted by Moog, ARP, Roland and Sequential Circuits (among others). It will not allow you to play conventional melodies if you apply a CV conforming to the Hz/Volt standard used by Yamaha and on most Korg monosynths.

Before leaving the factory, every RS95 and RS95E is calibrated to respond linearly to input control voltages ranging from -10V to +10V. This gives them a theoretical audio range of 20 octaves. In practice, the range is closer to a 16 octaves - far exceeding the capabilities of most other manufacturers' devices.

Unlike the RS90 (which generates two families of waveforms), the RS95 generates three families. The first is the rectangular family, whose waves are generally known as pulse waves and square waves. The second is the sawtooth family that includes falling saws, triangle waves, and rising saws ('ramp' waves). The third is the sine wave and an associated family of skewed waves with unusual harmonic structures.

Like the RS90, the RS95 and RS95E offer oscillator sync. This allows you to re-initialise the waveform by applying a second waveform at the SYNC IN input. The waveform is re-initialised every time the voltage of the synchronising oscillator passes 0V in a positive-going direction, increasing the harmonic complexity of the waveform, and thus the range of tones that you can obtain. The most popular use for sync is to generate "tearing" or "rasping" lead and bass sounds. However, the sync on the RS95 and RS95E is softer than that of the RS90, which makes it possible to generate a wider range of effects than before.

Waveforms:

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