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, April 29, 2017
12VDC To 120VAC Inverter68
Stepper Motor Controller39
Yesterday
Friday, April 28, 2017
12VDC To 120VAC Inverter92
FM Transmitter73
Of All Time 12VDC To 120VAC Inverter1,375,927
FM Transmitter916,079

Auto

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Circuit Author Views Rank Comments Marker
Automatic Headlight Brightness Switch 182,850 61 *
Car Alarm Arming Horn Beep Canceller bob 95,671 6 *
Wireless Auto Tachometer 289,658 58

Computer

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Circuit Author Views Rank Comments Marker
Computer Controlled Frequency Counter/Logic Probe Richard van Wyk 126,796 29 *
Parallel (Printer) Port Interface 229,039 71

Light/Laser

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Circuit Author Views Rank Comments Marker
12VDC Fluorescent Lamp Driver 382,917 62 *
3 Channel Spectrum Analyzer 176,173 20
40W Fluorescent Lamp Inverter Bart Milnes 282,129 60 *
Adjustable Strobe Light 253,915 36
Black Light 216,292 29
Colour (Sound) Organ 238,831 36
Electronic Dice NEW! 144,512 9 *
Fantastic Atom Expander 153,324 25
Flash Slave Trigger 174,844 17 *
Infa-Red Remote Control 570,654 216 *
IR Remote Extender NEW! 84,115 2 *
IR Remote Jammer Carl 216,731 110 *
IR Remote Switch NEW! 114,571 9 *
LASER Transmitter/Receiver 354,046 92
LED Chaser 396,726 83 *
LED Metronome NEW! 75,055 3 *
LED Thermometer 168,389 22 *
Light/Dark Detector 266,450 89 *
Simple Colour Organ 105,145 10 *
Strobe Light 235,901 27 *
TRIAC Light Dimmer 444,320 55

Major Projects

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Circuit Author Views Rank Comments Marker
Computerize Your Room/Home 304,419 122 *
Electromagnetic Levitator NEW! 104,922 15 *

Other

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Circuit Author Views Rank Comments Marker
7 Segment LED Counter 841,960 214 *
AC Motor Speed Controller 325,904 29 *
Air Flow Detector 211,881 54 *
Digital Keypad Combination Lock 156,245 20
Low Voltage Alarm 183,939 58 *
Pine Racecar Victory Judge 69,765 1 *
Pulse Width Modulation DC Motor Control 598,267 93
Rain Detector 264,401 112 *
Simple Lie Detector 506,231 323
Simple Polarity Tester Dudley LeRoux 120,841 13 *
Simple Servo Controller 176,627 22 *
Simple Touch Switch NEW! 131,974 5 *
Simple Two Speed Contactor DC Motor Controller 168,777 21 *
Stepper Motor Controller 659,610 120 *
Time Delay Relay 498,787 88
Time Delay Relay II jawaharlal@excite.com 196,696 39 *
Touch Switch 247,983 51 *
Video Activated Relay 87,483 8 *
Video Stabilizer/MacroVision Removal Antti Paarlahti 138,971 10 *
Water Detector With Sump/Bilge Pump Controller 113,062 18 *
Wire Loop Alarm Alex Meaden 170,306 27 *

Power Supply

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Circuit Author Views Rank Comments Marker
12V To 24V DC-DC Converter NEW! 255,918 25 *
12VDC To 120VAC Inverter 1,375,927 687
6V to 12V Converter 433,131 121
Automatic 12V Lead Acid Battery Charger 848,960 246
Automatic Load Sensing Power Switch 125,665 15 *
Car Battery Charger 804,144 159 *
Dual Polarity Power Supply 291,044 84 *
Fixed Voltage Power Supply 269,592 52 *
High Current Power Supply 285,816 64 *
High Voltage High Current Power Supply 213,904 35 *
LASER Power Supply 242,953 28
Portable CD Player Adapter For Car 170,642 12 *
Power Supply 670,898 259 *
Solid State Tesla Coil NEW! 109,017 3
Solid State Tesla Coil/High Voltage Generator 372,484 50
Transformerless Power Supply 408,451 117 *
Voltage Inverter 294,385 51 *
Voltage Inverter II 167,288 19 *

Sound/Radio

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Circuit Author Views Rank Comments Marker
22 Watt Audio Amplifier 531,989 182
3 Watt FM Transmitter Rae XL Tkacik 285,703 81 *
50 Watt Amplifier 447,846 74
8 Note Tune Player 108,970 12 *
8 Watt Audio Amp 316,960 67 *
Aircraft Radio Communications Receiver 221,590 49 *
Crystal Radio 129,704 53 *
Digital Volume Control 286,557 47 *
Electronic Stethoscope 261,572 141 *
FET Audio Mixer 291,389 40
FM Transmitter 916,079 418
Guitar Fuzz Effect 196,037 52 *
Microphone Mixer Anatoly I. Shikhatov 204,578 26 *
Mono To Stereo Synthesizer oRbEq 91,572 18 *
One Tube Regenerative Radio NEW! 95,713 4 *
Op Amp Radio 330,533 80 *
Single Chip AM Radio NEW! 73,784 2 *
Single Chip FM Radio NEW! 123,613 1 *
Sound Level Meter 295,092 51 *
Stereo Tube Amplifier Weslee Kinsler 224,151 15 *
Tone Control 257,277 31
Transistor Organ 154,824 28

Telephone

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Circuit Author Views Rank Comments Marker
Cut Phone Line Detector 131,425 27 *
FM Telephone Bug 195,016 57
Phone Busy Indicator 172,823 24 *
Remote Telephone Ringer 87,749 3 *
Ringing Phone Light Flasher 172,462 33 *
Simple Phone Tap Derek Tombrello 322,666 98 *
Telephone Hold Button 91,395 9
Telephone Recorder 175,429 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.