A-100 analog modular Website
The A-138f is a small, dual, three-way crossfader. “Three-way” here means that we have three possible input signals and one output signal. You will look in vain for the extremely sophisticated options of the A-138e, which unfortunately is no longer manufactured. The A-138f simply fades between two signals “A” and “B” and then (from the … Read more
The A-149-4 module is now the third member of the “A-149 family”. All three modules are about generating random voltages or trigger signals that go well beyond the possibilities of the random/noise modules A-118-1, A-118-2 or A-117. The A-149-1, which is based on the Buchla module 266, already has quantized voltages available that can be … Read more
The module is no longer in production. The A-101-3 phaser has two sub-units, each with 6 phase shifters (stages): The input signal runs through the 6 phase shifters connected in series and at the output, the original and the shifted signal can be mixed as desired using a “Mix” control. The output of the 6th … Read more
The module is small and interesting. A stripped down to two parameters but still flexible envelope generator with voltage control, hardwired to a linear VCA, plus a ducking function. The whole thing is also designed twice on only 8 HP. This is made possible by the new “Slim Line” format with slightly smaller buttons and … Read more
The concept of the triple resonance filter A-127 reminds me personally of the resonators in the Korg PS3100, which make this polyphonic analogue dinosaur sound so special. Technically, however, the three integrated filters in the A-127 are more comparable to the SEM filter (even if they are preconfigured differently). In terms of sound, just one … Read more
The A-150-8 is a very extensively equipped module that provides a total of 8 programmable 1:2 or 2:1 switches. What is programmable? Two LEDs per switch indicate which of the two “I/O” sockets on the left is connected to the “O/I” socket on the right. So we can either switch between two input signals at … Read more
The A-170 Dual Slew Limiter smooths control voltages – abrupt changes are “smeared” in the process. Switched before the frequency control of an oscillator, this function causes the well-known “portamento”, which transforms a jump on the keyboard into a slurred note. The two sub-modules differ, the upper slew limiter only allows a simple adjustment of … Read more
The A-117 Digital Noise / Random Clock / 808 Sound Source module is a discontinued model and will no longer be produced in the future. Status: February 2024 The Digital Noise Generator A-117 creates random, short impulses. The frequency of these pulses can basically be controlled, namely via the “Rate” controller or alternatively via an … Read more
Like the A-117 Digital Noise, the A-118-1 is also a random noise generator. However, it does not work with feedback shift registers, but with the “natural” noise of transistors and thus generates a very typical “synthesizer” noise. Dieter Döpfer once explained to me that due to the component tolerances of these transistors, each A-118-1 sounds … Read more
The A-149-1 Quantized / Stored Random Voltages is a lavishly equipped random generator that is based on the Buchla modules 265 and 266. There are two different sub-modules: Quantized Random Voltages provides random voltages whose level is within a “grid”, a quantization. These are then distances of 1 V at output “n+1” and distances of … Read more
