Quantcast
Channel: Homemade Circuit Projects
Browsing latest articles
Browse All 64 View Live

Neon Lamps – Working and Application Circuits

A neon lamp is a glow lamp made up of a glass cover, fixed with a pair of segregated electrodes and containing an inert gas (neon or argon). The main […] The post Neon Lamps – Working and Application...

View Article



How RC Circuits Work

In an RC circuit, a combination or R (resistor) and C (capacitor) is used in specific configurations in order to regulate the flow of current, for implementing a desired condition. […] The post How RC...

View Article

Automatic Hand Sanitizer Circuit

In this article we will learn how to make a low cost automatic hand sanitizer dispenser circuit which will allow a touch free or contact less dispensing of the sanitizing […] The post Automatic Hand...

View Article

How Contactless Infrared Thermometers Work – How to Make One

In this post we will learn the basic working concept of thermal scanners or contactless IR thermometers, and also learn how to make a practical DIY prototype of the unit […] The post How Contactless...

View Article

Signal Injector Circuits for Quick Troubleshooting of all Audio Equipment

This simple signal injector circuits explained below can be accurately used for troubleshooting and alignment applications of all kinds of audio and high frequency equipment. 1) Using a Single IC […]...

View Article


Bluetooth Stethoscope Circuit

In situations as critical as a COVID-19 pandemic, a doctor is the one personnel who is the most susceptible to getting infected by the virus from a patient. Therefore, doctors […] The post Bluetooth...

View Article

Listen to UHF and SHF (GHz) Bands with this Simple Circuit

This simple two IC circuit can be used for capturing and listening to frequencies in the GHz range. Receivers designed to cover frequencies as high as several gigahertz (which is […] The post Listen to...

View Article

Digital Theremin Circuit – Make Music with your Hands

Named after its creator, the theremin originated in the Soviet Union in the beginning of 1920's. This comprised of a container installed with a couple of antennas. It did not […] The post Digital...

View Article


Simple Touch Operated Potentiometer Circuit

In this touch operated potentiometer circuit we have two touch pads, which produce a slowly increasing voltage at the output when one touch pad is touched, and a decreasing voltage […] The post Simple...

View Article


Laboratory Power Supply Circuit

Although a variety of laboratory bench power supplies have appeared in recent times, only handful of these will provide you with the efficiency, versatility, and low cost of the design […] The post...

View Article
Browsing latest articles
Browse All 64 View Live




Latest Images