5 Band Graphic Equaliser
This is the design diagram of 5 band graphic equaliser circuit build using operational amplifier chips, the NE5532 or LM833.…
Telephone Amplifier using LM386
The following diagram is the circuit diagram of telephone amplifier, build based small amplifier IC LM386. This is a easy…
Current Output Multiplier for 78xx Regulator
This is the circuit diagram of current output multiplier designed for regulator IC LM78xx. By default, the regulator ID 78xx…
M66T Melody Generator
This is the very simple way to play a song with single 1.5 battery. You can build this circuit for…
Basic Dual Polarity Power Supply
This is a very basic dual polarity power supply circuit diagram, it also called symmetrical power supply or split power…
4 Watts FM Transmitter
The following diagram is the FM transmitter circuit with FM transmision up to 4W. Voltage supply for this circuit is…
400W Power Amplifier “Safari”
This 400W power amplifier circuit often called as "safari" amplifier. The below circuit design is for single channel only, build…
5V/10A 50W Offline Switching Power Supply
The following diagram is the 50W offline switching power supply circuit design. The circuit powered by a MOSFET. BUZ80A/IXTP4N8 for…
4 Transistors FM Transmitter
The following diagram is the schematic diagram of 4 transistors FM transmitter circuit designed by Paul K. Sherby. Components List:…
Safe Constant Current Source
In the above circuit diagram, a CMOS operational amplifier (op-amp) controls the current via a P-Channel HEXFET power transistor (IRF9520)…