Moog Werkstatt Built-In Sequencer

This is a Moog Werkstatt with a few modifications. It has a built-in stereo headphone amp with volume control and 1/8” stereo jack on the back panel. There is also a fine tuner control for the VCO.
The Werkstatt is mounted in a custom steel base with an integral 8-step sequencer. The sequencer has controls for speed and steps, 1-8. The unit is internally patched to the input header pins for VCF IN, VCO_LINEAR_IN VCO_EXPONENTIAL_IN and LFO_IN in various combinations through a six position switch.
You can set the steps control to 1 step to see what the frequency range of each step in each of the voices. Some voices have inverted control which can be quite entertaining.