The post explains how to make a simple 220V mains operated ding dong bell circuit which will generate a powerful ding dong sound each time someone presses the bell push […]
Simple Electronic Pinball Game Circuit
This highly portable electronic pocket pinbaIl game circuit may not exactly be a substitute for its big brothers in the amusement arcades, but it still provides a lot of fun. […]
Sound Operated Music Bell
In this post we learn how to make a simple sound operated music bell circuit which can be installed in homes for enabling the visitors to ring the door bell […]
TV Remote Control Tester Circuit
Here is a straightforward TV remote control tester circuit that anyone can use to check TV and VCR remote handsets. The infrared sensor module generates a 5 volt logic pulse […]
How to Change Fluorescent Tubes to LEDs
In this post we are going to research a basic LED tube light circuit which might be instantly changed with defective any 40 watt T17 fluorescent tubes and installed straight on […]
LED Emergency Light with Automatic Battery Cut-of Circuit
The post explains an LED emergency light circuit with sophisticated capabilities such as, over charge battery cut off, day time auto-disable, and need less to say that the circuit switches […]