Cell Phone Car Charger

The goal of this project is to demonstrate the design, simulation, and construction of an in-car cellphone charger. The entire process will ...

Contactless Mains Voltage Indicator

This is a CMOS IC (CD4033) based circuit which can be used to detect presence of mains AC voltage without any electrical contact with the c...

Power Reminder Beeper Circuit

This hobby electronic circuit produces a short beep once each minute. It is powered directly off the 120vac power ...

2 Line Telephone Line Status Indicator

Many home businesses use multiple phone lines. This circuit gives you a visual indication when a line is in opera...

IC 7812&7912 Dual Regulator Power Supply Circuit

IC 7812&7912 Dual Regulator Power Supply Circuit Voltage Regulators low ability burning IC 78W alternation acclimated in our chart is n...

GUITAR FX

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