Needed urgent help of expert in electronics please...?
I was looking for electronic mosquito repellent circuit, I just google it and wow.... there are hundred of schematics. Any one can tell me which one can work perfectly and.... If I setup 555 timer IC circuit for 10KHz and add a 8 ohm speaker between 3rd pin and battery positive will the speaker give the sound of 10KHz??? Please answer. Thank you in advance.