The post discusses a simple super capacitor hand cranked charger circuit using bridge rectifier which may be applied for charging a bank of super capacitors through any suitable hand cranked […]
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How to Test a MOV (Metal Oxide Varistor) Surge Protector Device
The article discusses a set up for testing MOVs which are special devices specified for absorbing instantaneous high surge currents that may accidentally occur in our mains electrical lines. The […]
Programmable Solar Porch Light Circuit
The post explains a porch light circuit with programmable timer controller which enables the connected LEDs to light up or shut off after some delay, as preferred by the user, […]
0 to 50V, 0 to 10amp Variable Dual Power Supply Circuit
The post explains a simple yet very useful 0 to 50V dual power supply circuit which will enable a full 0 to maximum dual voltage +/- control of the input […]
Capacitor Based LED Tubelight Using 1 Watt LEDs
The post explains the construction of a homemade 100 watt capacitive tubelight circuit using 1 watt LEDs. The idea was requested, constructed, tested and verified by one the avid readers […]
Wireless Home theater Circuit using Bluetooth Headset
The post discusses a 200 + 200 watt wireless home theater circuit using a class D amplifier and a Bluetooth headset as the wireless module. The idea was requested by […]