This is high fidelity, high quality 25W HiFi audio amplifier circuit delivers great audio performance. You don't need pre amplifier…
The following circuit is a simple fire alarm circuit based NE555 timer and use thermistor as a temperature detector. This…
Here is the hum remover circuit diagram. "Hum" usually occured from live audio system, for example: input from microphone. Hum…
The following scheme diagram is the battery charger circuit for 6V Gel Cell battery type only. Components List: R1 =…
This is the scheme diagram of passive surround circuit. Passive surround doesn't need any active components and power supply to…
This is an 250mW RF power amplifier circuit project. This circuit is designed to amplify the output of about 7mW…
The circuit diagram of 3V-30V/3A adjustable regulated power supply. This is an adjustable and regulated power supply with stabilized DC…
This is the circuit diagram of a voice operated relay. It similar with sound activation switch circuit which will turn…
This is a really simple smoke alarm circuit design. The circuit consists of two important modules that are sensor module…
This is the diagram of 4W stereo power amplifier built based stereo power IC LM2877 with a few of external…