HiFi Audio Pre-amp
This is a HiFi pre-amplifier circuit diagram with low noise output. Very wide range frequency from about 10Hz until up…
4W Audio Amplifier using Transistor TIP41
This 4W Audio Amplifier circuit is powered by 2 pieces of transistor TIP41. The circuit is very simple and incorporates…
“Hum” Remover
Here is the hum remover circuit diagram. "Hum" usually occured from live audio system, for example: input from microphone. Hum…
10 Dancing LEDs
This is the circuit diagram of dancing LEDs which consists of 10 units LEDs. The 10 dancing LEDs circuit works…
Dual Output Stabilized Power Supply
This is a dual regulated and stabilized power supply, usually used to supply amplifier circuit, it also known as split…
Ultrasonic Sensor Switch
Here is the circuit diagram of ultrasonic sensor switch. There are many methods of wireless switching such as by using…
100 Watt Inverter 12VDC to 220VAC with Mosfet
This is another 100 watt inverter circuit diagram. Built based on IC CD4047 and Mosfet IRF540, this inverter have ability…
300Watt Inverter DC 24V to AC 220V
This is the 300W inverter circuit which capable to convert 24VDC become 220VAC. With this circuit, you will have 220V…
50 Watt Power Audio Amplifier
Here the circuit diagram of 50W power amplifier. The amplifier uses a pair of power transistors that are MJ2955 and…