Here’s a simple schematic of rat repeller circuit from an electronic magazine that I have. It uses 2 555 timers. IC1 acts as a low frequency oscillator and IC2 acts like a voltage controlled oscillator.
Passion in Electronics
Here’s a simple schematic of rat repeller circuit from an electronic magazine that I have. It uses 2 555 timers. IC1 acts as a low frequency oscillator and IC2 acts like a voltage controlled oscillator.