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
Saturday, November 16, 2024		 12VDC To 120VAC Inverter24
Stepper Motor Controller21
Yesterday
Friday, November 15, 2024		 Stepper Motor Controller30
12VDC To 120VAC Inverter26
Of All Time 12VDC To 120VAC Inverter1,539,650
FM Transmitter1,015,875

Auto

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Circuit Author Views Rank Comments Marker
Automatic Headlight Brightness Switch 229,326 61 *
Car Alarm Arming Horn Beep Canceller bob 138,797 6 *
Wireless Auto Tachometer 345,863 58

Computer

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Circuit Author Views Rank Comments Marker
Computer Controlled Frequency Counter/Logic Probe Richard van Wyk 162,056 29 *
Parallel (Printer) Port Interface 290,021 71

Light/Laser

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Circuit Author Views Rank Comments Marker
12VDC Fluorescent Lamp Driver 451,000 63 *
3 Channel Spectrum Analyzer 225,077 20
40W Fluorescent Lamp Inverter Bart Milnes 332,680 60 *
Adjustable Strobe Light 312,336 36
Black Light 284,932 29
Colour (Sound) Organ 293,898 36
Electronic Dice NEW! 191,769 10 *
Fantastic Atom Expander 205,331 25
Flash Slave Trigger 224,214 18 *
Infa-Red Remote Control 640,681 216 *
IR Remote Extender NEW! 135,406 3 *
IR Remote Jammer Carl 269,423 110 *
IR Remote Switch NEW! 159,955 9 *
LASER Transmitter/Receiver 420,728 92
LED Chaser 449,689 83 *
LED Metronome NEW! 101,955 3 *
LED Thermometer 209,348 22 *
Light/Dark Detector 308,498 90 *
Simple Colour Organ 139,708 11 *
Strobe Light 278,319 27 *
TRIAC Light Dimmer 556,845 55

Major Projects

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Circuit Author Views Rank Comments Marker
Computerize Your Room/Home 363,514 122 *
Electromagnetic Levitator NEW! 146,854 15 *

Other

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Circuit Author Views Rank Comments Marker
7 Segment LED Counter 926,712 214 *
AC Motor Speed Controller 395,908 29 *
Air Flow Detector 254,479 54 *
Digital Keypad Combination Lock 204,590 20
Low Voltage Alarm 231,953 58 *
Pine Racecar Victory Judge 104,947 1 *
Pulse Width Modulation DC Motor Control 658,702 94
Rain Detector 307,717 112 *
Simple Lie Detector 568,273 323
Simple Polarity Tester Dudley LeRoux 168,094 13 *
Simple Servo Controller 224,396 22 *
Simple Touch Switch NEW! 172,624 6 *
Simple Two Speed Contactor DC Motor Controller 207,993 21 *
Stepper Motor Controller 752,452 120 *
Time Delay Relay 559,085 88
Time Delay Relay II jawaharlal@excite.com 250,324 39 *
Touch Switch 292,745 51 *
Video Activated Relay 124,301 8 *
Video Stabilizer/MacroVision Removal Antti Paarlahti 184,502 10 *
Water Detector With Sump/Bilge Pump Controller 155,663 18 *
Wire Loop Alarm Alex Meaden 208,192 27 *

Power Supply

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Circuit Author Views Rank Comments Marker
12V To 24V DC-DC Converter NEW! 320,694 25 *
12VDC To 120VAC Inverter 1,539,650 691
6V to 12V Converter 531,843 121
Automatic 12V Lead Acid Battery Charger 941,491 248
Automatic Load Sensing Power Switch 170,367 16 *
Car Battery Charger 887,177 159 *
Dual Polarity Power Supply 374,687 84 *
Fixed Voltage Power Supply 314,691 52 *
High Current Power Supply 343,657 66 *
High Voltage High Current Power Supply 267,267 35 *
LASER Power Supply 299,711 28
Portable CD Player Adapter For Car 215,019 12 *
Power Supply 743,217 259 *
Solid State Tesla Coil NEW! 149,860 4
Solid State Tesla Coil/High Voltage Generator 448,840 51
Transformerless Power Supply 466,864 117 *
Voltage Inverter 343,977 51 *
Voltage Inverter II 206,589 19 *

Sound/Radio

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Circuit Author Views Rank Comments Marker
22 Watt Audio Amplifier 588,919 182
3 Watt FM Transmitter Rae XL Tkacik 339,929 83 *
50 Watt Amplifier 512,161 74
8 Note Tune Player 143,442 12 *
8 Watt Audio Amp 377,733 67 *
Aircraft Radio Communications Receiver 282,939 49 *
Crystal Radio 162,146 53 *
Digital Volume Control 342,198 47 *
Electronic Stethoscope 325,285 142 *
FET Audio Mixer 347,055 41
FM Transmitter 1,015,875 420
Guitar Fuzz Effect 251,154 54 *
Microphone Mixer Anatoly I. Shikhatov 253,957 26 *
Mono To Stereo Synthesizer oRbEq 137,299 18 *
One Tube Regenerative Radio NEW! 148,095 4 *
Op Amp Radio 393,864 80 *
Single Chip AM Radio NEW! 102,749 3 *
Single Chip FM Radio NEW! 176,063 1 *
Sound Level Meter 345,370 51 *
Stereo Tube Amplifier Weslee Kinsler 271,637 15 *
Tone Control 313,298 31
Transistor Organ 203,228 28

Telephone

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Circuit Author Views Rank Comments Marker
Cut Phone Line Detector 166,146 27 *
FM Telephone Bug 237,696 57
Phone Busy Indicator 216,511 24 *
Remote Telephone Ringer 120,701 3 *
Ringing Phone Light Flasher 221,979 35 *
Simple Phone Tap Derek Tombrello 386,429 98 *
Telephone Hold Button 131,611 10
Telephone Recorder 219,365 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.