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How to Get Started with a Microwave Radar Motion Sensor

In this project, T.K. Hareendran has demonstrated a small, cheap Doppler radar. He gives the interface circuit and a video demonstration of the device in use.
HF Dipole Antenna Design Software

Solve Elect Design

P. Marian - 04/14/2008

With Solve Elect you can: design and analyze electronic circuits working in cc obtain formulas and values for [...]

Ultrasonic Dog Repeller Circuit

P. Marian -

This ultrasonic dog repeller circuit will chase away angry dogs. It is build with the all known 555 [...]
70 watt mosfet audio amplifier schematic

70 Watt MOSFET Audio Amplifier

Received by Email - 04/13/2008

This simple mosfet power audio amplifier circuit, with TL071C and 2 MOSFETs (IRF9530 and IRF530) can deliver up [...]
tda2030 8w audio amplifier circuit diagram

TDA2030 10W Audio Amplifier Circuit

P. Marian -

TDA2030 audio amplifier can output 20 W but in this schematic we have reduced the power to 10 [...]
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