Portable USB Rechargeable LED light / emergency light

USB Rechargeable led light /flashlight, Power & useful Utility gadget/project and can be charged via a smartphone charger or power bank port. Read full detailed instructable and in the end, you would find a demonstration video I hope you would like it. USB rechargeable LED light. USB rechargeable LED flashlight. As the name implies its … Read more

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Variable Power Supply using LM317 1.5 – 15v dc

Introduction to variable voltage regulator :– A variable power supply unit is a very useful tool that provides the constant derived voltage output with constant current rated by the unit. A variable power output tool is a necessity for electrical and electronics hobbyists and professional work.These are circuits built using active and passive components(diodes,transistor,capacitors,resistors,ICs,etc. HOW … Read more

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Easy Tesla Coil

Tesla coil is a radio frequency oscillator that drives an air-core double-tuned resonant transformer to produce high voltages at low currents. so let’s get started with our mini tesla coil. Materials 1. 8 CM PVC PIPE 2. 15-20 Metres of COPPER Insulated Wire[motor winding wire], thickness around 0.2 mm 3. 15cm copper insulated wire which … Read more

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Powerful 12V-220V AC Inverter, 60-100watts| DC to AC

Hello, everyone the instructable here in this post is a 60watt homemade inverter. Inverters are of 2 types mainly square wave and sinewave. The design discussed here is a powerful 12V- 220V AC inverter, 60w square wave inverter. This inverter is capable of powering CFLs, tube lights, dc fan ext. it can handle up to … Read more

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