In this post we are going to construct a musical organ circuit whose musical tone can be programmed by adjusting 10 pre-sent resistors in the circuit and the speed of […]
Simple LED Stopwatch Using IC 555 and IC 4017
In this post we are going to construct a simple LED stopwatch using IC 555 timer and IC 4017 decade counter. The elapsed time is indicated by LEDs which illuminates […]
Simple Variable Power Supply Circuit for Benchwork
In case you assess the cost and the rating of this simple variable bench power supply you may receive a big surprise, as the output voltage and current tend to […]
Simple Electric Fencing Circuit
In this post we are going to make a simple electric fencing circuit which can protect your private property from animals and intruders and prevent them from gaining access. Note: […]
Solid State Relay (SSR) Circuit Using Triac
A solid state relay (SSR) circuit using in built zero crossing detector is explained in this post. The circuit is extremely simple to implement and make nevertheless offers with valuable […]
LED Amplifier Circuit
The light emission of an LED is usually fairly small. In case a lot more brightness is needed, the following LED amplifier circuit might help. The LED to be amplified’ […]