Electronic Circuits


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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
Thursday, December 18, 2014
7 Segment LED Counter389
Infa-Red Remote Control231
Yesterday
Wednesday, December 17, 2014
7 Segment LED Counter507
Infa-Red Remote Control258
Of All Time 12VDC To 120VAC Inverter1,259,919
FM Transmitter847,039

Auto

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Circuit Author Views Rank Comments Marker
Automatic Headlight Brightness Switch 168,251 61 *
Car Alarm Arming Horn Beep Canceller bob 85,479 6 *
Wireless Auto Tachometer 262,934 58

Computer

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Circuit Author Views Rank Comments Marker
Computer Controlled Frequency Counter/Logic Probe Richard van Wyk 111,424 29 *
Parallel (Printer) Port Interface 212,693 71

Light/Laser

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Circuit Author Views Rank Comments Marker
12VDC Fluorescent Lamp Driver 353,326 62 *
3 Channel Spectrum Analyzer 151,046 19
40W Fluorescent Lamp Inverter Bart Milnes 258,786 60 *
Adjustable Strobe Light 228,748 36
Black Light 194,242 29
Colour (Sound) Organ 216,881 34
Electronic Dice NEW! 123,354 8 *
Fantastic Atom Expander 134,116 24
Flash Slave Trigger 158,337 17 *
Infa-Red Remote Control 521,392 216 *
IR Remote Extender NEW! 67,339 2 *
IR Remote Jammer Carl 195,502 110 *
IR Remote Switch NEW! 96,596 9 *
LASER Transmitter/Receiver 322,474 91
LED Chaser 361,952 83 *
LED Metronome NEW! 62,031 3 *
LED Thermometer 152,230 22 *
Light/Dark Detector 235,060 89 *
Simple Colour Organ 92,031 10 *
Strobe Light 213,281 27 *
TRIAC Light Dimmer 401,441 54

Major Projects

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Circuit Author Views Rank Comments Marker
Computerize Your Room/Home 280,279 122 *
Electromagnetic Levitator NEW! 86,913 15 *

Other

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Circuit Author Views Rank Comments Marker
7 Segment LED Counter 762,287 214 *
AC Motor Speed Controller 285,344 29 *
Air Flow Detector 188,146 54 *
Digital Keypad Combination Lock 137,403 20
Low Voltage Alarm 162,948 58 *
Pine Racecar Victory Judge 60,321 1 *
Pulse Width Modulation DC Motor Control 555,577 93
Rain Detector 236,580 111 *
Simple Lie Detector 466,023 321
Simple Polarity Tester Dudley LeRoux 102,480 13 *
Simple Servo Controller 155,681 22 *
Simple Touch Switch NEW! 110,478 5 *
Simple Two Speed Contactor DC Motor Controller 151,202 21 *
Stepper Motor Controller 608,145 120 *
Time Delay Relay 450,933 86
Time Delay Relay II jawaharlal@excite.com 178,215 39 *
Touch Switch 227,738 51 *
Video Activated Relay 73,847 8 *
Video Stabilizer/MacroVision Removal Antti Paarlahti 122,392 9 *
Water Detector With Sump/Bilge Pump Controller 100,769 18 *
Wire Loop Alarm Alex Meaden 153,653 27 *

Power Supply

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Circuit Author Views Rank Comments Marker
12V To 24V DC-DC Converter NEW! 211,652 24 *
12VDC To 120VAC Inverter 1,259,919 684
6V to 12V Converter 384,277 121
Automatic 12V Lead Acid Battery Charger 744,333 239
Automatic Load Sensing Power Switch 109,323 14 *
Car Battery Charger 748,832 158 *
Dual Polarity Power Supply 262,735 84 *
Fixed Voltage Power Supply 244,597 52 *
High Current Power Supply 253,743 64 *
High Voltage High Current Power Supply 193,570 34 *
LASER Power Supply 216,308 28
Portable CD Player Adapter For Car 151,671 12 *
Power Supply 618,883 258 *
Solid State Tesla Coil NEW! 89,588 3
Solid State Tesla Coil/High Voltage Generator 330,706 49
Transformerless Power Supply 373,524 116 *
Voltage Inverter 266,943 51 *
Voltage Inverter II 151,615 19 *

Sound/Radio

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Circuit Author Views Rank Comments Marker
22 Watt Audio Amplifier 491,765 182
3 Watt FM Transmitter Rae XL Tkacik 255,970 80 *
50 Watt Amplifier 404,853 73
8 Note Tune Player 95,003 12 *
8 Watt Audio Amp 282,361 66 *
Aircraft Radio Communications Receiver 191,657 49 *
Crystal Radio 113,701 53 *
Digital Volume Control 263,236 46 *
Electronic Stethoscope 220,380 139 *
FET Audio Mixer 263,253 40
FM Transmitter 847,039 418
Guitar Fuzz Effect 172,452 51 *
Microphone Mixer Anatoly I. Shikhatov 181,791 25 *
Mono To Stereo Synthesizer oRbEq 75,532 17 *
One Tube Regenerative Radio NEW! 74,751 4 *
Op Amp Radio 292,421 80 *
Single Chip AM Radio NEW! 50,875 2 *
Single Chip FM Radio NEW! 92,476 0 *
Sound Level Meter 267,913 51 *
Stereo Tube Amplifier Weslee Kinsler 204,397 15 *
Tone Control 231,218 30
Transistor Organ 135,477 28

Telephone

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Circuit Author Views Rank Comments Marker
Cut Phone Line Detector 120,181 27 *
FM Telephone Bug 179,098 57
Phone Busy Indicator 140,037 24 *
Remote Telephone Ringer 77,517 3 *
Ringing Phone Light Flasher 152,982 32 *
Simple Phone Tap Derek Tombrello 302,727 98 *
Telephone Hold Button 76,399 9
Telephone Recorder 160,613 54 *


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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.