NLC - Beatfreq Misc so this version gets two

so this version gets two Buchla style low pass gate/filters

so it was simple enough to find the CMOS equivalents (sort of)

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A 20 page zine about a tweet

NLC - Beatfreq Misc so this version gets twoMagpie Modular repanel for Non Linear Circuits Beatfreq The idea for this module came from a schematic that has been floating around the web for years 'beat frequency indicator' The idea is to feed the circuit two signals and depending upon which one had the higher frequency the ring of 4 LEDs would light up in a clockwise or anti clockwise direction. The speed of rotation would indicate how close or disparate the frequencies are. If the signals have