Long Range Microphone for Cicadas & Cricket Hunting
From Hackteria Wiki
Electronic Parts
LM358 Single-supply OP Amp LM386 Audio Op Amp 10k OHM resistor (x3) 1k OHM resistor 0.1uF capacitor (x2) 100uF electrolytic capacitor 220uF electrolytic capacitor 470uF tantalum capacitor 1uF tantalum capacitor 100k OHM linear potentiometer 1/8" audio jack similar to here 9 Volt Battery 9 Volt Battery Clip