200W Power Amplifier Using Transistor

This is a 200W power amplifier circuit project. The circuit features high power, good definition and very low noise. It…

55 years ago

Small Sound Amplifier for Ears (Hearing Aid)

This is the simple project of small sound amplifier for ears or often called hearing aid device or hearing loss…

55 years ago

400W RMS Stereo Power Amplifier

This is the schematic diagram of 400W RMS stereo power amplifier which use power transistor to work. This amplifier in…

55 years ago

Active Speaker Protector

This is a simple active speaker protector circuit which has a very important use, expecially to protect the loudspeakers of…

55 years ago

Two Tone Train Horn based NE556 Dual Timer

This is the circuit diagram of two tones train horn which built based dual timer IC NE556. The circuit is…

55 years ago

Triac, SCR, Transistor Tester

This is the circuit diagram of TRIAC, SCR and Transistor tester. This is a very simple circuit which can be…

55 years ago

USB Printer Switch 2 Input Ports

Here is the USB printer switch circuit design with two USB input ports and one USB output port. This a…

55 years ago

Simple Smoke Alarm using Photo Interrupter Module

This is a really simple smoke alarm circuit design. The circuit consists of two important modules that are sensor module…

55 years ago

Digital Fan Speed Control

This is the digital fan speed control circuit design that can be utilize to control the speed of 220V fans…

55 years ago