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
Tuesday, November 26, 2024		 Voltage Inverter33
12VDC To 120VAC Inverter23
Yesterday
Monday, November 25, 2024		 One Tube Regenerative Radio40
12VDC To 120VAC Inverter34
Of All Time 12VDC To 120VAC Inverter1,540,061
FM Transmitter1,016,168

Auto

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Circuit Author Views Rank Comments Marker
Automatic Headlight Brightness Switch 229,409 61 *
Car Alarm Arming Horn Beep Canceller bob 138,867 6 *
Wireless Auto Tachometer 345,968 58

Computer

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Circuit Author Views Rank Comments Marker
Computer Controlled Frequency Counter/Logic Probe Richard van Wyk 162,140 29 *
Parallel (Printer) Port Interface 290,137 71

Light/Laser

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Circuit Author Views Rank Comments Marker
12VDC Fluorescent Lamp Driver 451,151 63 *
3 Channel Spectrum Analyzer 225,182 20
40W Fluorescent Lamp Inverter Bart Milnes 332,793 60 *
Adjustable Strobe Light 312,477 36
Black Light 285,118 29
Colour (Sound) Organ 294,037 36
Electronic Dice NEW! 191,871 10 *
Fantastic Atom Expander 205,408 25
Flash Slave Trigger 224,314 18 *
Infa-Red Remote Control 640,795 216 *
IR Remote Extender NEW! 135,496 3 *
IR Remote Jammer Carl 269,553 110 *
IR Remote Switch NEW! 160,025 9 *
LASER Transmitter/Receiver 420,873 92
LED Chaser 449,858 83 *
LED Metronome NEW! 102,040 3 *
LED Thermometer 209,451 22 *
Light/Dark Detector 308,591 90 *
Simple Colour Organ 139,799 11 *
Strobe Light 278,417 27 *
TRIAC Light Dimmer 557,008 55

Major Projects

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Circuit Author Views Rank Comments Marker
Computerize Your Room/Home 363,627 122 *
Electromagnetic Levitator NEW! 146,951 15 *

Other

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Circuit Author Views Rank Comments Marker
7 Segment LED Counter 926,913 214 *
AC Motor Speed Controller 396,041 29 *
Air Flow Detector 254,575 54 *
Digital Keypad Combination Lock 204,680 20
Low Voltage Alarm 232,061 58 *
Pine Racecar Victory Judge 105,029 1 *
Pulse Width Modulation DC Motor Control 658,859 94
Rain Detector 307,838 112 *
Simple Lie Detector 568,450 323
Simple Polarity Tester Dudley LeRoux 168,184 13 *
Simple Servo Controller 224,493 22 *
Simple Touch Switch NEW! 172,722 6 *
Simple Two Speed Contactor DC Motor Controller 208,093 21 *
Stepper Motor Controller 752,688 120 *
Time Delay Relay 559,209 88
Time Delay Relay II jawaharlal@excite.com 250,436 39 *
Touch Switch 292,858 51 *
Video Activated Relay 124,378 8 *
Video Stabilizer/MacroVision Removal Antti Paarlahti 184,607 10 *
Water Detector With Sump/Bilge Pump Controller 155,759 18 *
Wire Loop Alarm Alex Meaden 208,287 27 *

Power Supply

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Circuit Author Views Rank Comments Marker
12V To 24V DC-DC Converter NEW! 320,885 25 *
12VDC To 120VAC Inverter 1,540,061 691
6V to 12V Converter 531,976 121
Automatic 12V Lead Acid Battery Charger 941,681 248
Automatic Load Sensing Power Switch 170,468 16 *
Car Battery Charger 887,317 159 *
Dual Polarity Power Supply 374,808 84 *
Fixed Voltage Power Supply 314,807 52 *
High Current Power Supply 343,839 66 *
High Voltage High Current Power Supply 267,370 35 *
LASER Power Supply 299,848 28
Portable CD Player Adapter For Car 215,122 12 *
Power Supply 743,373 259 *
Solid State Tesla Coil NEW! 149,966 4
Solid State Tesla Coil/High Voltage Generator 449,035 51
Transformerless Power Supply 466,988 117 *
Voltage Inverter 344,195 51 *
Voltage Inverter II 206,720 19 *

Sound/Radio

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Circuit Author Views Rank Comments Marker
22 Watt Audio Amplifier 589,060 182
3 Watt FM Transmitter Rae XL Tkacik 340,097 83 *
50 Watt Amplifier 512,328 74
8 Note Tune Player 143,544 12 *
8 Watt Audio Amp 377,890 67 *
Aircraft Radio Communications Receiver 283,115 49 *
Crystal Radio 162,295 53 *
Digital Volume Control 342,334 47 *
Electronic Stethoscope 325,471 142 *
FET Audio Mixer 347,204 41
FM Transmitter 1,016,168 420
Guitar Fuzz Effect 251,265 54 *
Microphone Mixer Anatoly I. Shikhatov 254,081 26 *
Mono To Stereo Synthesizer oRbEq 137,430 18 *
One Tube Regenerative Radio NEW! 148,414 4 *
Op Amp Radio 394,079 80 *
Single Chip AM Radio NEW! 102,852 3 *
Single Chip FM Radio NEW! 176,200 1 *
Sound Level Meter 345,495 51 *
Stereo Tube Amplifier Weslee Kinsler 271,757 15 *
Tone Control 313,431 31
Transistor Organ 203,357 28

Telephone

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Circuit Author Views Rank Comments Marker
Cut Phone Line Detector 166,246 27 *
FM Telephone Bug 237,780 57
Phone Busy Indicator 216,611 24 *
Remote Telephone Ringer 120,788 3 *
Ringing Phone Light Flasher 222,126 35 *
Simple Phone Tap Derek Tombrello 386,523 98 *
Telephone Hold Button 131,702 10
Telephone Recorder 219,470 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.