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 ArticleHow 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 ArticleAutomatic 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 ArticleHow 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 ArticleSignal 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 ArticleBluetooth 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 ArticleListen 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 ArticleDigital 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 ArticleSimple 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 ArticleLaboratory 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...
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