Module A-138 is a four channel mixer, which can be used with either control voltages or audio signals. Each of the four input...
Addressed Track&Hold / Analog Shift Register (ASR)/ Octal Switch (Multiplexer) Module A152 is a very useful switching and T&H ...
Module A-114 contains two separate ring modulators. A ring modulator outputs the product (Multiplication X Y) of the signals a...
Module A-103 is a voltage controlled low pass filter with 18dB/octave slope. The circuit is based on a modified transistor lad...
Modulation wheel module with two wheels, factory setting - one spring loaded wheel with bipolar voltage output (i.e. 0V in cen...
Modules A-130 and A-131 provide voltage-controlled amplification. For audio signals, you would normally use the exponential VC...
Module A-196 contains a so-called phase locked loop (PLL). A PLL consists of three parts: voltage-controlled oscillator (VCO)...
Break Out Module for the Doepfer A-127 Triple Resonance Filter This expansion module allows three filter units of A-127 modul...
A-133 is a special dual voltage controlled amplifier that enables both positive and negative amplifications. Negative amplifi...
Module A-140 is an envelope generator, and, since it puts out control voltages, counts as one of the modulation devices in a m...
Module A-132-2 is a fourfold VCA with a common level control section for all four VCAs. The module can be used for all applica...