random*source serge divide by n comparator (÷ncom) price : $242.99

the serge divide by n comparator (ncom) is a rare, much sought-after and very essential serge module covering a number of functions: comparator, voltage-controlled pulse divider, and voltage-controlled staircase generator.

the ÷n comparator consists of two sections - a comparator (right side) and a voltage-controlled pulse divider (left side). the ÷n output of the pulse divider sends out a pulse on every n-th comparator pulse where n is a number from 1 to 31. n can be (pre-)set with the divider's control knob (1 ÷n) and can by changed with a control voltage. the vc knob (attenuator)on the bottom of the left side determines how much effect the control voltage has on "n". in addition, the divider generates a staircase waveform with n steps. this can be used to produce whole-tone steps when run into the 1v/oct input of a vco or as a stepped control voltage to change for instance the cutoff of a filter.

the comparator provides a number of useful "housekeeping functions": logical decisions (if the +input is greater than the -input, the output will be high, otherwise low), level detection (whenever a variable waveform crosses the theshold, a pulse is generated ), pulse width modulation or rectifying a waveform (e.g. a sine or triangle wave). (more applications and info in the build doc).

specifications:
under licence from and in cooperation with serge tcherepnin
precision voltage source for improved accuracy
new version (smt), slimmer and more precise than ever!
2 extra attenuators
eurorack format (3u), 10 hp
power consumption: 20ma @ +12v, 18ma @ -12v
module depth: < 40mm (1.5")