bpw34 gamma counter
simple & cheap gamma counter with pin-diode sensor
can be used as LFO-randomizer for modular synthesizers
zero rate (with a single bpw34 diode): 0,3 beats per minute
energy requirement: 3-12V
power consumption: <10mA
opengeiger.de/elektronik.html
elektronik-labor.de/Projekte/Gamma.html
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