Back in the mid 1970’s one of the first musicians I listened to, who was making electronic music, was Klaus Schulze. I searched out his first 5 LP’s in 1975, as they were available in the UK for the first time on the BRAIN record label. The royalties from the 1975 success of Timewind, and […]
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This 1U rack unit is rather more interesting than a traditional noise source or even a “sample & hold” circuit. The schematics are available for the EMS Synthi 100, and it is possible to work out what the circuit does. An interior screen shot of the PCB is available (see below) which is a VCS3 […]
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The PPG 317 Voltage Controlled Filter dates back to 1976 and the beginnings of PPG when they were a modular synthesizer company based in Hamburg. The The first set of modules was named the 100 series which are visually similar to the Moog modular but with different circuits and panel lettering in German. Some early […]
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Projekt Elektronik built a one-off custom modular synthesizer for Paul Baumann in 1977. It contains 32x patch busses as well as many customized modules in Moog Modular format. There is a good overview at this web page here. One of the modules that we have decided to clone is the PE 410 Dual Ring Modulator. […]
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The 12HP wide AM1044 is a re-issue and expansion of the original AM8044 from 2013, using the CoolAudio V2044A chip and some design ideas from the SSI2144 datasheet. The V2044A delivers a fantastic sounding transistor ladder filter, which we have added some amazing Q compensation to. AM1044 circuit The V2044A is a re-imagined SSM2044 chip […]
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In 1976 the EMS Eight Octave Filter Bank was a key part of both Klaus Schulze’s and Tangerine Dream’s sound. The 1U rack unit with beautiful wooden case can be seen one top of Peter Baumann’s customised Moog 960 Sequencer as well as Klaus Schulze’s IIIp, where it was usually placed on top of his […]
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The AM1052 is a simple four into one channel mixer for audio or control voltages, with ARP 2500 style control knobs. In addition we have added mute buttons for each channel, and it can be controlled via an external clock source (e.g. Behringer 1050 or 1036) or a sequencer (Behringer 1027) via an internal 12-pin […]
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The AM1020 is a completely new complex VCO design for the 100M eco-system and is inspired by the discontinued Instruo Troika. An ultra stable VCO delivers four waveforms that can be mixed and blended to create complex wave shapes, by using two wave shapers to create new sounds! Description The VCO is based on the […]
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The AM1076 module has three vactrol filters which can be independently adjusted for frequency, resonance and modulation depth. The modulation inputs are usually driven by one or more LFO’s to create band pass sweeps. Description ARP 2500 style knobs at the top of the front panel are used to adjust the level of the individual filter […]
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This 14 HP wide module contains two identical voltage controlled ADSR envelope generators, with curve select, mode select and variable timing. Each stage of the ADSR, including timing, can be controlled by an external +10V control voltage. The curve can be selected from exponential or linear, and the mode of the ADSR can be selected […]
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