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Spark Transmitter Circuit

Received by Email - 12/29/08

In 1896, Marconi successfully covered a distance of about 3 km using electromagnetic waves. A little later, he [...]
magnetic-field-meter magno circuit schematic

Magnetic Field Meter Magnetometer Circuit

P. Marian - 12/08/08

These days when electronic circuits can be found almost anywhere, there is, some people fear*, a different kind [...]

Fairy Flashing LED Lights

Received by Email - 12/07/08

This simple and cheap circuit is not just for Christmas! There are just two resistors, a small-signal transistor [...]
soil moisture tester circuit schematic

Soil Moisture Tester Circuit

Received by Email - 12/07/08

For those of us who don’t like to get their hands dirty, this simple soil moisture tester quickly [...]

Bicycle Rear-Light Afterglow Circuit

Received by Email - 12/06/08

This article is of interest only to readers whose bicycle lights are powered by a dynamo. The laws [...]
christmas ligths circuit schematic

LED Christmas Lights Circuit

Received by Email - 11/30/08

Have your already set up a Christmas tree in your house and decorated it with traditional lights? Build [...]

Electronic Stethoscope Circuit

Received by Email - 11/29/08

An electronic stethoscope is used to listen to your heartbeat and you would normally use a listening tube [...]
acupuncture point locator circuit diagram

Acupuncture Point Locator Circuit

Received by Email - 11/02/08

This acupunture point locator circuit is used to locate the sensitive acupuncture points location on the human body. [...]
light dimmer circuit schematic

Automatic Lamp Dimmer Circuit

Received by Email - 09/28/08

This automatic light dimmer circuit makes it possible to control a lighting system so that it turns on [...]
fm antenna amplifier circuit schematic

FM Antenna Amplifier Circuit

Received by Email - 06/28/08

Use this fm antenna amplifier in areas where the signal reception of FM stations is too bad. This [...]
basic infrared transmitter circuit schematic

Basic Infrared Transmitter Circuit

Received by Email - 06/15/08

This infrared tranmitter is intended for use with this infrared receiver. It works with 2 - 1.5V batteries [...]
stun gun circuit schematic

DIY Stun Gun Circuit

P. Marian - 05/11/08

This is a diy simple stun gun circuit showned only for learning! In No Way Do I Recommend [...]
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