Electronic Circuits

Here are some neat circuits you might want to try. The schematics and printed circuit board patterns are GIF's, and may show up different on some browsers. You might want to save the images (especially the PC board patterns) to your hard drive, load them into a photo editor (Photoshop, Paint Shop Pro, The GIMP, etc.) and adjust the size before you transfer the pattern to a board. Printed circuit board patterns are available possible. This page is always under construction and there will be new additions from time to time. Some of these circuits were designed by me, most are not. Whenever possible I have tried to credit the author of a circuit but since many of these circuits are from my personal collection that I have gathered over a period of many years, this information is not always available.

You can rank circuits according to how much you like a circuit by clicking on the lightning bolt icons. These ranks can be based on how much you like a circuit, whether a circuit worked or didn't work for you, or how useful you found a circuit. Additionally you can add your own comments at the bottom of each circuit by filling out the form.

Circuit Catagories

Circuits are divided into categories as listed below.

Catagory Circuits
Auto 3
Computer 2
Light/Laser 21
Major Projects 2
Other 21
Power Supply 18
Sound/Radio 22
Telephone 8

Some circuits in this list have little astrisk (*) markers beside them which give a basic amount of information regarding whether the circuit has been designed, tested or modified by the webmaster.

Marker Description
* The circuit has not been tested by me. Therefore, I will offer no gaurantee that they will work.
* This circuit has been designed by me.
* This circuit was not designed by me, but was modified by me.

Most Popular Circuits

The most popular circuits of today, yesterday and all time can be found below.

When Circuit Views
Today
Sunday, November 22, 2009		 12VDC To 120VAC Inverter125
7 Segment LED Counter87
Yesterday
Saturday, November 21, 2009		 12VDC To 120VAC Inverter506
7 Segment LED Counter361
Of All Time 12VDC To 120VAC Inverter567,672
FM Transmitter416,334

Auto

 Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Automatic Headlight Brightness Switch 86,202 48 *
Car Alarm Arming Horn Beep Canceller bob 39,247 5 *
Wireless Auto Tachometer 136,557 52

Computer

 Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Computer Controlled Frequency Counter/Logic Probe Richard van Wyk 58,570 29 *
Parallel (Printer) Port Interface 117,998 69

Light/Laser

 Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
12VDC Fluorescent Lamp Driver 163,714 55 *
3 Channel Spectrum Analyzer 53,576 11
40W Fluorescent Lamp Inverter Bart Milnes 121,257 57 *
Adjustable Strobe Light 104,896 25
Black Light 101,941 27
Colour (Sound) Organ 109,637 27
Electronic Dice NEW! 4,744 1 *
Fantastic Atom Expander 65,066 22
Flash Slave Trigger 83,222 15 *
Infa-Red Remote Control 242,534 205 *
IR Remote Extender NEW! 2,884 0 *
IR Remote Jammer Carl 93,417 98 *
IR Remote Switch NEW! 3,570 2 *
LASER Transmitter/Receiver 140,562 83
LED Chaser 146,917 77 *
LED Metronome NEW! 2,919 0 *
LED Thermometer 72,468 14 *
Light/Dark Detector 109,787 83 *
Simple Colour Organ 46,849 7 *
Strobe Light 120,758 26 *
TRIAC Light Dimmer 179,334 50

Major Projects

 Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Computerize Your Room/Home 154,114 119 *
Electromagnetic Levitator NEW! 4,422 1 *

Other

 Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
7 Segment LED Counter 309,205 190 *
AC Motor Speed Controller 68,819 17 *
Air Flow Detector 83,678 47 *
Digital Keypad Combination Lock 47,849 18
Low Voltage Alarm 70,198 48 *
Pine Racecar Victory Judge 27,553 0 *
Pulse Width Modulation DC Motor Control 264,691 87
Rain Detector 112,066 101 *
Simple Lie Detector 220,647 283
Simple Polarity Tester Dudley LeRoux 44,716 11 *
Simple Servo Controller 39,100 8 *
Simple Touch Switch NEW! 4,319 0 *
Simple Two Speed Contactor DC Motor Controller 77,844 19 *
Stepper Motor Controller 284,052 106 *
Time Delay Relay 168,858 65
Time Delay Relay II jawaharlal@excite.com 82,245 34 *
Touch Switch 119,832 47 *
Video Activated Relay 33,274 6 *
Video Stabilizer/MacroVision Removal Antti Paarlahti 56,533 7 *
Water Detector With Sump/Bilge Pump Controller 41,343 16 *
Wire Loop Alarm Alex Meaden 73,875 27 *

Power Supply

 Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
12V To 24V DC-DC Converter NEW! 5,530 2 *
12VDC To 120VAC Inverter 567,672 640
6V to 12V Converter 161,111 106
Automatic 12V Lead Acid Battery Charger 217,117 177
Automatic Load Sensing Power Switch 47,836 12 *
Car Battery Charger 370,197 141 *
Dual Polarity Power Supply 117,311 74 *
Fixed Voltage Power Supply 110,294 42 *
High Current Power Supply 120,216 58 *
High Voltage High Current Power Supply 97,369 25 *
LASER Power Supply 99,617 27
Portable CD Player Adapter For Car 77,917 11 *
Power Supply 312,187 249 *
Solid State Tesla Coil NEW! 3,192 0
Solid State Tesla Coil/High Voltage Generator 143,872 42
Transformerless Power Supply 164,509 107 *
Voltage Inverter 130,206 47 *
Voltage Inverter II 75,560 19 *

Sound/Radio

 Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
22 Watt Audio Amplifier 209,012 167
3 Watt FM Transmitter Rae XL Tkacik 109,429 68 *
50 Watt Amplifier 202,202 70
8 Note Tune Player 48,429 10 *
8 Watt Audio Amp 135,132 57 *
Aircraft Radio Communications Receiver 76,355 40 *
Crystal Radio 55,737 50 *
Digital Volume Control 129,576 40 *
Electronic Stethoscope 91,650 131 *
FET Audio Mixer 105,288 30
FM Transmitter 416,334 362
Guitar Fuzz Effect 73,140 45 *
Microphone Mixer Anatoly I. Shikhatov 82,665 20 *
Mono To Stereo Synthesizer oRbEq 35,753 14 *
One Tube Regenerative Radio NEW! 2,447 1 *
Op Amp Radio 124,986 66 *
Single Chip AM Radio NEW! 2,218 0 *
Single Chip FM Radio NEW! 3,744 0 *
Sound Level Meter 128,488 41 *
Stereo Tube Amplifier Weslee Kinsler 91,821 12 *
Tone Control 103,331 20
Transistor Organ 64,166 23

Telephone

 Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Cut Phone Line Detector 59,637 26 *
FM Telephone Bug 94,364 49
Phone Busy Indicator 58,730 19 *
Remote Telephone Ringer 38,051 2 *
Ringing Phone Light Flasher 70,538 24 *
Simple Phone Tap Derek Tombrello 169,371 92 *
Telephone Hold Button 35,523 7
Telephone Recorder 88,229 51 *

Back To Electronics Page | Mail Me | Search

All material marked as mine is property of Aaron Cake. You may, however, distribute it as much as you want, with or without credit to me. Just don't claim credit for it yourself, and it would be nice if you included a link back to my page. All other material is property of its authors.