Dual Comparator (COM)

From the original catalogue:
The DUAL COMPARATOR (COM) provides several often useful house-keeping functions within the Serge system: Logical Decisions: If the + input is greater than the - input, then the output will be high . If not, then the output will be low. Level Detection . A pulse will be generated whenever ., an input voltage reaches a pre-set threshold . For - example, when an envelope detector reaches a certain loudness level, it can be used with the Comparator to generate a pulse to activate or de-activate other events programmed within the synthesizer . Voltage variable pulse width modulation of any of the Serge oscillators. "Squaring" audio signals, whereby frequency related pulses are derived from an input signal . These pulses can be used for frequency sub-division (via a Dual Slope Generator or Sequencer), or as raw audio, rich in harmonic_ content . SCHMfTT TRIGGERS In addition to the +/- inputs, each o+ the Comparators include a front-panel knob to manually Set a threshold .”

Dual Comparator DIY module documentation:
LGE205 Bill Of Materials (Dual Comp Config)
LGE205 Schematic (Dual Comp Config)
LGE205 Main PCB w/ Designators
LGE205D Bill of Materials
LGE205D Schematic
LGE205D I/O Board w/ Designators

Mechanical Parts BOM generally required for building Low-Gain Electronics Modules

** 4U Modular is a term used for the format most commonly known as “Serge Format” or “Loudest Warning Format”. Out of respect for the ever growing format, 4U Modular is the easiest way to refer to it. More Specifically it refers to the panel height and mounting hole style. 4U Modular will patch up just fine with other 4U "Serge" formats such as "Random Source", but it will not mount in RS boats or Buchla Boats (or power off Buchla power for that matter). An info page about this will be added to the website soon to make this a lot more easy to understand.