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Heterodyne_Bat_Detector
A Bat Detector of the heterodyne type that let's you listen to the ultrasonic sounds from bats in real-time.
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Hello, I am trying to build the attached circuit (credit: https://github.com/MarcelMG/Heterodyne_Bat_Detector). The circuit is very well documented (there is also a PDF article somewhere that describes the technicalities behind the circuit), but I have a question related to the headphone output (semi-circled in red).
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