Simple Audio Level Indicator Circuit using IC LM3915 show sound strength with lights, its display driver is good for sound visual circuits. Also, it takes analog voltage and can light up 10 LEDs, LCDs or other displays in line. This circuit uses an LED VU meter, which music lovers enjoy because it displays sound levels […]
Hobby Circuits
Free Energy From Air Circuit
This post for Free Energy From Air Circuit uses free energy from air, whose idea is simple as air is full of radio waves. When radio is ON we can hear static and even in empty place, so if we make strong power setup then air can give us endless energy. Furthermore, circuit uses antenna, […]
Automobile Brake Failure Indicator Circuit
Automobile Brake Failure Indicator Circuit is backup system, which tell driver if brake system have a problem; as it uses electric parts to check brake and if problem comes then it show light or make sound. Furthermore, this circuit work only in cars with negative grounding and it also give signal if brake switch does […]
Air Flow Detection Circuit
Air Flow Detection Circuit means basic electric circuit to check if air is moving or not; also people use this in machines or home projects to watch air flow. Furthermore, in this project we make very simple circuit to see if air is moving and also we used broken AC bulb and few cheap parts […]
Thyristor Switching using Snubber Circuit
In this article, we discuss Thyristor Switching using Snubber Circuit, a thyristor acts as a switch in power electronics applications that handle high voltage and high current. Thyristor also called SCR (Silicon Controlled Rectifier) which turns ON by gate signal and to turn it OFF the current must stop; but when turning ON and OFF […]
Basic Circuit for Multi-Way Lamp Switching
We can control one bulb from many places using Basic Circuit for Multi-Way Lamp Switching. People also refer to three-way switches as two-way switches and they refer to four-way switches as intermediate switches; also they commonly use both types in multi-way switching systems. Firstly, three-way switches go at both ends like at hallway doors and […]