Electronics Tips, Tutorials and Projects
~~~~~~~~~~~
Power Supplies, Soldering
Circuit Boards, Diagrams, Schematics

GENERAL/MIXED/MISC.

Digital Library (see left menu) - Circuit Cellar

Electronics - Aaron's Homepage

Electronics Tutorials

How Electronic Gates Work (& how to make one: logic gate) - How Stuff Works

How Van de Graaff Generators Work (& how to build one: charge pump) - How Stuff Works

Sci.Electronics.Repair FAQ

ALARMS, INDICATORS & SECURITY

Alarms & Indicators Circuit Diagrams (theft preventer, 4 in 1 burglar alarm, water level indicator...) - Electronics Zone

Alarm Circuits (power loss beeper, doorknob alarm, electric Discover Circuits

IR Sensitive CCTV Camera & Light Source - Eddiem.com

CLOCKS & TIMERS

4 Bit Binary Clock Schematic And Parts List - CSGNetwork

A Digital Clock With 7 Weekly Alarms Using The OOPIC - Larry's Technology Web Site

How Digital Clocks Work (& how to make one) - How

My Nixie Clock Project (tube clock) - mcamafia.de

CONTROLLERS

How Microcontrollers Work (& how to build some) - How Stuff Works

Motor Controller Circuits (speed controller for fans & coolers, stepper motor controller, direction controller...) - Electronics Zone

DETECTORS & SENSORS

A Good IR Detector - Dan Creagan's Robots

Build A Simple Bat Detector - Tony & Jackie Messina

Electronic Sensors & Related Circuits (dew sensor, color sensor, light barrier detector...) - Electronics Zone

IR Body Heat Detector - CircuitoZ.net

Low Cost D.I.Y. Bat Detector - Pete's Home Page

OSCILLATORS

A Negative Differential Resistance Oscillator With A Negistor - JLN Labs

Oscillator Circuits (sawtooth wave, variable frequency) - Electronics Zone

Oscillators (audio, astable, crystal...) - Discover Circuits

POWER

+12V/-12V Power Supply Unit - Hobby Of Electronic Circuit Engineering

PCB Layout: Basic Printed Circuit Board Design Guidelines For SMPS Switching Power Supplies - Lazar's Power Electronics Corner

Power Related Circuits (power supplies, battery monitors, voltage doublers...) - reconn's World.com

Power Supply Circuit Diagrams (self switching PS, over/under voltage cut-out, car battery charger...) - Electronics Zone

Power Supply Circuits (transformerless, high voltage/high current, voltage inverter...) - Aaron Cake

Simple 5V Power Supply for Digital Circuits - Tomi Engdahl's Electronics Pages

SOLDERING

The Basic Soldering & Desoldering Guide (includes step-by-step photos) - EPE

Help On Soldering - University of Pennsylvania, Department of Electrical Engineering

How To Solder Like A Pro - Page Wise

TRANSMITTERS, RECEIVERS & REMOTE CONTROL

Build A Simple InfraRed Remote Control - Reynolds Electronics

Experimental Data Transmitter For Fiber Optics - CircuitoZ.net

InfraRed/Radio Remote Control Transmitter/Receiver With PIC - Jap's Electronics Projects

Infra-Red Remote Control (transmitter & receiver) - Aaron Cake

IR Remote Control Jammer - Aaron Cake

Remote Control Circuit Diagrams (radio, ultrasonic, clap activated...) - Electronics Zone

Serial Port Controlled Infrared Transmitter With Pic (for PCs) - Jap's Electronics Projects

Simple IR Transmitter Circuit - Tomi Engdahl's Electronics Pages

Transmitters (radio, tracking) - reconn's World.com

UIR: Universal InfraRed Receiver (for PCs) - Brainy's Emoh Egap