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
Sunday, November 17, 2024		 12VDC To 120VAC Inverter19
Ringing Phone Light Flasher15
Yesterday
Saturday, November 16, 2024		 12VDC To 120VAC Inverter34
Stepper Motor Controller26
Of All Time 12VDC To 120VAC Inverter1,539,682
FM Transmitter1,015,888

Auto

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Circuit Author Views Rank Comments Marker
Automatic Headlight Brightness Switch 229,329 61 *
Car Alarm Arming Horn Beep Canceller bob 138,800 6 *
Wireless Auto Tachometer 345,874 58

Computer

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Circuit Author Views Rank Comments Marker
Computer Controlled Frequency Counter/Logic Probe Richard van Wyk 162,062 29 *
Parallel (Printer) Port Interface 290,028 71

Light/Laser

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Circuit Author Views Rank Comments Marker
12VDC Fluorescent Lamp Driver 451,005 63 *
3 Channel Spectrum Analyzer 225,083 20
40W Fluorescent Lamp Inverter Bart Milnes 332,687 60 *
Adjustable Strobe Light 312,352 36
Black Light 284,941 29
Colour (Sound) Organ 293,908 36
Electronic Dice NEW! 191,775 10 *
Fantastic Atom Expander 205,341 25
Flash Slave Trigger 224,221 18 *
Infa-Red Remote Control 640,688 216 *
IR Remote Extender NEW! 135,411 3 *
IR Remote Jammer Carl 269,430 110 *
IR Remote Switch NEW! 159,959 9 *
LASER Transmitter/Receiver 420,738 92
LED Chaser 449,701 83 *
LED Metronome NEW! 101,961 3 *
LED Thermometer 209,352 22 *
Light/Dark Detector 308,502 90 *
Simple Colour Organ 139,711 11 *
Strobe Light 278,329 27 *
TRIAC Light Dimmer 556,852 55

Major Projects

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Circuit Author Views Rank Comments Marker
Computerize Your Room/Home 363,520 122 *
Electromagnetic Levitator NEW! 146,857 15 *

Other

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Circuit Author Views Rank Comments Marker
7 Segment LED Counter 926,731 214 *
AC Motor Speed Controller 395,916 29 *
Air Flow Detector 254,488 54 *
Digital Keypad Combination Lock 204,598 20
Low Voltage Alarm 231,963 58 *
Pine Racecar Victory Judge 104,954 1 *
Pulse Width Modulation DC Motor Control 658,711 94
Rain Detector 307,731 112 *
Simple Lie Detector 568,289 323
Simple Polarity Tester Dudley LeRoux 168,104 13 *
Simple Servo Controller 224,405 22 *
Simple Touch Switch NEW! 172,635 6 *
Simple Two Speed Contactor DC Motor Controller 208,004 21 *
Stepper Motor Controller 752,466 120 *
Time Delay Relay 559,094 88
Time Delay Relay II jawaharlal@excite.com 250,335 39 *
Touch Switch 292,753 51 *
Video Activated Relay 124,313 8 *
Video Stabilizer/MacroVision Removal Antti Paarlahti 184,508 10 *
Water Detector With Sump/Bilge Pump Controller 155,671 18 *
Wire Loop Alarm Alex Meaden 208,205 27 *

Power Supply

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Circuit Author Views Rank Comments Marker
12V To 24V DC-DC Converter NEW! 320,710 25 *
12VDC To 120VAC Inverter 1,539,682 691
6V to 12V Converter 531,852 121
Automatic 12V Lead Acid Battery Charger 941,503 248
Automatic Load Sensing Power Switch 170,372 16 *
Car Battery Charger 887,186 159 *
Dual Polarity Power Supply 374,700 84 *
Fixed Voltage Power Supply 314,699 52 *
High Current Power Supply 343,677 66 *
High Voltage High Current Power Supply 267,273 35 *
LASER Power Supply 299,719 28
Portable CD Player Adapter For Car 215,025 12 *
Power Supply 743,225 259 *
Solid State Tesla Coil NEW! 149,871 4
Solid State Tesla Coil/High Voltage Generator 448,848 51
Transformerless Power Supply 466,873 117 *
Voltage Inverter 343,985 51 *
Voltage Inverter II 206,601 19 *

Sound/Radio

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Circuit Author Views Rank Comments Marker
22 Watt Audio Amplifier 588,927 182
3 Watt FM Transmitter Rae XL Tkacik 339,938 83 *
50 Watt Amplifier 512,169 74
8 Note Tune Player 143,446 12 *
8 Watt Audio Amp 377,743 67 *
Aircraft Radio Communications Receiver 282,949 49 *
Crystal Radio 162,151 53 *
Digital Volume Control 342,205 47 *
Electronic Stethoscope 325,293 142 *
FET Audio Mixer 347,068 41
FM Transmitter 1,015,888 420
Guitar Fuzz Effect 251,162 54 *
Microphone Mixer Anatoly I. Shikhatov 253,971 26 *
Mono To Stereo Synthesizer oRbEq 137,309 18 *
One Tube Regenerative Radio NEW! 148,112 4 *
Op Amp Radio 393,876 80 *
Single Chip AM Radio NEW! 102,755 3 *
Single Chip FM Radio NEW! 176,068 1 *
Sound Level Meter 345,381 51 *
Stereo Tube Amplifier Weslee Kinsler 271,646 15 *
Tone Control 313,305 31
Transistor Organ 203,239 28

Telephone

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Circuit Author Views Rank Comments Marker
Cut Phone Line Detector 166,150 27 *
FM Telephone Bug 237,701 57
Phone Busy Indicator 216,517 24 *
Remote Telephone Ringer 120,708 3 *
Ringing Phone Light Flasher 221,998 35 *
Simple Phone Tap Derek Tombrello 386,436 98 *
Telephone Hold Button 131,615 10
Telephone Recorder 219,372 55 *

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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.