Circuits: +/-5 volt outputs for each axis. Lag Processor and Rapid Trigger.
When patched into the axis inputs, the circuit becomes an attenu-inverter. This is the 'FM' portion. This has a separate Lag Processor also. It will delay a gate, and create a lag rising slew controlled with the time knob. There is also a Rapid Trigger output, controlled by push button and rate knob.