In this post I have explained how to make an interesting yet simple running LED cross sign or plus sign module for displaying in front of medical stores. Nowadays, it […]
New Circuit Projects
Simplest Combination Lock Circuit Explained
A electronic combination lock is a device which is designed to activate an electrical solenoid locking system whenever the correct combination of numbers are entered into an attached keypad. To […]
Password Lock Circuit Using IC 4017
In this post I will show how to construct a general purpose password based electronic lock circuit without any involvement of microcontroller. You can use this circuit for numerous applications […]
Simple Hum Filter Circuit for Amplifiers
The following post discusses a simple hum filter circuit which can be installed between an audio input source and a power amplifier, so that any possible mains hum frequency within […]
Light Controlled Sound Effect Generator Circuit
This unique circuit allows you to create many different sound effect outputs simply by moving your hands over a couple of light dependent resistors, by varying the intensity of incident […]
Simple Voltage Multiplier Circuits Explored
In this article I have explained how an input AC source could be increased to any desired levels using simple voltage multiplier circuits, built with capacitors and diodes. Thus the […]
