The 4 simple car voltage current regulator circuits explained below is created as a immediate alternative to any standard regulator and, although developed principally for a dynamo it will function […]
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Op Amp Preamplifier Circuits – For MICs, Guitars, Pick-ups, Buffers
In this post we will learn a variety of op amp preamplifier circuits, and there should be an appropriate layout here for almost any standard audio preamplifier application. As the […]
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 […]
10 Useful Function Generator Circuits Explained
In this post we will learn how to build 10 simple yet useful function generator circuits using IC 4049, IC 8038, IC 741, IC 7400, transistors, UJTs etc. for generating […]
Simple Ni-Cd Battery Charger Circuits Explored
The post discusses many simple NiCd charger circuits with an automatic overcharge protection and a constant current charging. When it comes to correctly charging a Nickel-Cadmium cell, it is strictly […]
5 Simple Fastest Finger First Circuits Explained
The 5 simple fastest finger first indicator circuits presented here can be used for indicating which candidate was the first to press the answer button out of the 4 participating […]