Electronic circuits & Projects

Electronic Mosquito Repellent

ElectroSchematics.com — Thu, 29 Jul 2010 10:08:57 +0000

This electronic mosquitoes repellent circuit is easy to build but is kind of hard to adjust on the exact sound frequency which will reppel the mosquitoes. With frequencies between 2 KHz and 2.5 KHz which mimic male mosquitoes buzz, it seems you can get the best effect. But sometimes you may need to readjust the [...]

Post from: Electronic circuits and projects

Electronic Mosquito Repellent

No related posts.

Flashing Light Circuit

ElectroSchematics.com — Wed, 28 Jul 2010 10:01:55 +0000

This simple flashing light circuit is powered with 6 volts/0.5A and has a low current consumption when the light bulb is off. The flashing frequency is set by only one capacitor. Transistor T1 may be replaced with BC160 and T2 with BC140. Simple Flashing Light Circuit Diagram Post from: Electronic circuits and projectsFlashing Light Circuit [...]

Post from: Electronic circuits and projects

Flashing Light Circuit

Flashing Light with Triacs This flashing light circuit uses triacs to generate an intermittent...
Flashing Brake Light for Motorcycles This flashing brake light circuit can be used for motorcycles....
LED flashing circuit This is a simple led flashing circuit with 2 leds....

Processor Fan Controller

ElectroSchematics.com — Tue, 27 Jul 2010 11:32:54 +0000

This Processor Fan Control circuit is intended to be used with relatively old PCs, since more recent models generally have a fan control circuit already integrated into the motherboard. These controllers ensure that the amount of cooling is increased if the processor becomes too warm and decreased if the processor temperature is relatively low. The [...]

Post from: Electronic circuits and projects

Processor Fan Controller

Speech processor – clipping and dynamic compression To obtain the best modulation result of a transmitter you...
Transistor Circuit Design Transistors are inevitable parts of Electronic circuits. The success of...
PC Fan Controller This PC fan controller circuit is designed with discrete components...

FM Radio Receiver

ElectroSchematics.com — Tue, 27 Jul 2010 07:52:40 +0000

This simple fm radio receiver circuit consists of a regenerative rf stage, TR1, followed by a two of three-stage audio amplifier, TR2 to TR4. In some areas 3 stages of audio amplification may not be necessary, in which case TR3 and its associated components can be omitted and the free end of capacitor C5 connected [...]

Post from: Electronic circuits and projects

FM Radio Receiver

Mini AM Radio circuit This AM receiver circuit is based ob the IC ZN415...
Two transistor AM radio This two transistor AM radio circuit is also called “mini-radio”....
Small FM Receiver This is the most simple fm radio receiver with good...

Magnetic Field Sensor

ElectroSchematics.com — Mon, 26 Jul 2010 14:51:27 +0000

This magnetic field sensor circuit is very simple and can detect fixed magnetic fields or fields that are varying at an audio frequency. The unit is not intended to provide accurate measurement of magnetic field strength. A small and not very powerfull bar magnet can be detected at about 100 mm from the sensor. It [...]

Post from: Electronic circuits and projects

Magnetic Field Sensor

Magnetic field meter These days when electronic circuits can be found almost anywhere,...
Field strength meter A sensitive and reliable field strength meter is an invaluable...
Field strength meter This circuit measures the strength of a radiated signal from...