Doepfer A-173-1/2 Micro Keyboard / Manual Gate Modules

A-173-1/2 is a module combo that is used to generate a manually controlled 1V/Octave CV signal and up to 15 manually controlled gate/trigger signals. Typical applications are the transposition of a sequence by means of the CV output (without the need of an external keyboard and CV interface) and the manual generation of gate/trigger signals for start, stop, envelope generator triggering and other trigger tasks. A-173-1 is the transmitter module and is made of a 1.5 octaves micro keyboard and an octave switch. A-173-2 is the receiver module and generates several gate/trigger signals and a 1V/Oct. CV signal. The upper section of the module is used for the gates/triggers which are controlled by the corresponding buttons of the A-173-1. Each output can be programmed as gate (pressing/releasing the corresponding key turns the gate on/off) or toggle (pressing the corresponding key changes the state) or trigger (pressing the corresponding key generates a short trigger signal). The state of each output is displayed by an LED. The lower section of the module is used the generate a 1V/Oct. CV signal and gate signal in the usual way.