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Module A-106-5 is a 12dB multimode filter that is based on the filter circuit of the Oberheim SEM module.The filter is equipped with a band pass output and a combined low/notch/high pass output. For this output a control knob defines the relation between low and high pass signal. If both s..

Module A-110-1 is a voltage-controlled oscillator. This VCO's frequency range is about eight octaves (ca. 15Hz ... 8kHz). It can produce four waveforms simultaneously: rectangle, sawtooth, triangle, and sine wave (triangle and sine shapes are not perfect, see remark below). The output levels are typ..

Module A-110-2 is a low-cost voltage-controlled oscillator. It's a slightly reduced version of the standard VCO A-110-1. Compared to the A-110-1 the A-110-2 has no sine output and the (expensive) octave rotary switch is replaced by a 3-position toggle switch. In return the A-110-2 is equipped w..

A-110-4 is a so-called Thru Zero Quadrature VCO. The term "quadrature" means in this connection that the oscillator outputs sine and cosine waveforms simultaneously. The term "Thru-Zero" means that even "negative" frequencies are generated. But this a bit a misleading term as negative frequencies do..

Module A-111-2 is the successor of the obsolete High End VCO I A-111-1.Here are the most important features of the planned module:triangle coremin. 15 octaves pitch range (typ. 0.5Hz - 20kHz)perfect 1V/octave tracking over min. 10 octaves (typ. 20Hz - 20kHz)exponential frequency controls and in..

Module A-111-3 is an extremely space-saving precision VCO/LFO with a 4HP panel only. Essentially it's the same basic circuit as the A-111-2 but with reduced features:triangle corefully analog designmin. 15 octaves pitch range in each mode (VCO/LFO):VCO mode: typ. 0.5 Hz - 20 kHz ..

Module A-111-5 is a complete monophonic synthesizer module that includes these components (modular version of Dark Energy):VCOmanual tune control (with an internal jumper the range can be set to ~ +/-1 half an octave or ~ +/-2.5 octaves)range switch -1 / 0 / +1 octavefrequency range about 30Hz ..

Miniature Synth VoiceModule A-111-6 is a complete miniature monophonic synthesizer module that has these features available:VCOTune: manual tune control (with an internal jumper the range can be set to ~ +/-1 half an octave or ~ +/-2.5 octaves)Oct.: range switch -1 / 0 / +1 octaveMod.: modulation de..

Module A-112 is the combination of a voltage controlled 8 Bit Sampler and a wavetable oscillator. On top of it the module is able to generate some special effects. A-112 was designed as an additional sound source with the typical sounds of the early 8 bit samplers and is not comparable with the mode..

Module A-114 contains two separate ring modulators. A ring modulator outputs the product (Multiplication X • Y) of the signals at inputs X and Y. It's similar to a VCA, but whereas a VCA only responds to positive voltages at the inputs (2-quadrant multiplication), the ring modulator responds to both..

Module A-118 is (as you might have guessed) a noise and random voltage generator. It produces three types of signal: white noise, colored noise, and random voltage. The noise signal is generated 100% analog by amplification of the noise of a transistor. White and colored noise can be used as audio s..

Noise / Random / T&H / S&HModule A-118-2 is the slim version of module A-118-1 and offers essentially the same features as the A-118-1. But the distances between the controls are smaller and rubberized small-sized knobs are used. In return the front panel has 4 HP only which is half the widt..