Rat and Cockroach Repellent Circuit Using Astable Multivibrator
The Mouse and Rat repellent circuit using astable multivibrator which use sound waves or ultrasonic so it escaped away. Use transistor and piezoelectric. Read more
Solid State Relay circuit
The special Relay that used replace normally relay, very fast contact load, low voltage input 3V to 24V only Read more
Cricket Sound Generator Circuit
This cricket sound generator circuit uses the LM324 OP-AMP as a frequency generator and a buzzer to emit sound without using ROMs. Read more
Simple Overload protection circuits
This is overload protection for transformers and load, is simple circuit cut off-on by relay. And so fast switch witch SCR driver. can set sensitive by VR1 Read more
SCR DC motor speed control circuit using IC-CMOS
This is speed motor controller circuit of 12V DC motor. as SCR DC motor speed control circuit using IC-4081 CMOS. You can adjust the speed of rotation […] Read more