PCBs and FR4 front panel (only) for an attenuverters synth module. This module is in LMNC's Kosmo format (20 cm high) and is 7.5 cm wide.

The module supplies three slider-controlled attenuverters by which an input signal can be attenuated and/or inverted. The sum and the inverted sum of the outputs of all three are also available as outputs. A switch allows using the first attenuverter to supply a constant voltage between -10 V and +10 V.

The circuit design is based on the Kassutronics Attenuverting Mixer.

The user needs to source parts and assemble them. (Photo of my own assembled module for illustrative purposes only.) Easy through-hole construction.

Be sure to see the Github repository (linked below) for BOM, build notes, and other information.