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, October 25, 2014
7 Segment LED Counter378
LED Chaser145
Yesterday
Friday, October 24, 2014
7 Segment LED Counter548
Infa-Red Remote Control252
Of All Time 12VDC To 120VAC Inverter1,248,910
FM Transmitter839,735

Auto

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Circuit Author Views Rank Comments Marker
Automatic Headlight Brightness Switch 166,496 60 *
Car Alarm Arming Horn Beep Canceller bob 84,491 6 *
Wireless Auto Tachometer 255,303 57

Computer

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Circuit Author Views Rank Comments Marker
Computer Controlled Frequency Counter/Logic Probe Richard van Wyk 109,960 29 *
Parallel (Printer) Port Interface 211,373 71

Light/Laser

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Circuit Author Views Rank Comments Marker
12VDC Fluorescent Lamp Driver 350,669 61 *
3 Channel Spectrum Analyzer 148,967 19
40W Fluorescent Lamp Inverter Bart Milnes 256,873 60 *
Adjustable Strobe Light 226,534 36
Black Light 192,496 29
Colour (Sound) Organ 214,983 34
Electronic Dice NEW! 121,427 8 *
Fantastic Atom Expander 132,400 24
Flash Slave Trigger 157,048 17 *
Infa-Red Remote Control 511,063 216 *
IR Remote Extender NEW! 66,060 2 *
IR Remote Jammer Carl 193,756 110 *
IR Remote Switch NEW! 95,010 9 *
LASER Transmitter/Receiver 319,567 91
LED Chaser 353,660 83 *
LED Metronome NEW! 61,117 3 *
LED Thermometer 150,795 22 *
Light/Dark Detector 233,447 89 *
Simple Colour Organ 91,087 10 *
Strobe Light 211,971 27 *
TRIAC Light Dimmer 397,542 54

Major Projects

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Circuit Author Views Rank Comments Marker
Computerize Your Room/Home 278,668 122 *
Electromagnetic Levitator NEW! 85,345 15 *

Other

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Circuit Author Views Rank Comments Marker
7 Segment LED Counter 731,255 214 *
AC Motor Speed Controller 280,261 28 *
Air Flow Detector 185,280 54 *
Digital Keypad Combination Lock 133,917 20
Low Voltage Alarm 161,469 58 *
Pine Racecar Victory Judge 59,661 1 *
Pulse Width Modulation DC Motor Control 551,293 93
Rain Detector 233,487 111 *
Simple Lie Detector 460,077 320
Simple Polarity Tester Dudley LeRoux 101,202 13 *
Simple Servo Controller 152,344 22 *
Simple Touch Switch NEW! 108,317 5 *
Simple Two Speed Contactor DC Motor Controller 149,093 21 *
Stepper Motor Controller 601,684 120 *
Time Delay Relay 445,431 86
Time Delay Relay II jawaharlal@excite.com 176,131 39 *
Touch Switch 225,385 51 *
Video Activated Relay 72,750 8 *
Video Stabilizer/MacroVision Removal Antti Paarlahti 121,082 9 *
Water Detector With Sump/Bilge Pump Controller 99,341 18 *
Wire Loop Alarm Alex Meaden 152,459 27 *

Power Supply

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Circuit Author Views Rank Comments Marker
12V To 24V DC-DC Converter NEW! 207,370 24 *
12VDC To 120VAC Inverter 1,248,910 684
6V to 12V Converter 380,549 121
Automatic 12V Lead Acid Battery Charger 733,293 238
Automatic Load Sensing Power Switch 108,120 14 *
Car Battery Charger 743,416 158 *
Dual Polarity Power Supply 260,076 84 *
Fixed Voltage Power Supply 242,273 52 *
High Current Power Supply 251,375 64 *
High Voltage High Current Power Supply 192,049 34 *
LASER Power Supply 214,098 28
Portable CD Player Adapter For Car 150,353 12 *
Power Supply 612,550 258 *
Solid State Tesla Coil NEW! 87,920 2
Solid State Tesla Coil/High Voltage Generator 325,198 49
Transformerless Power Supply 370,065 116 *
Voltage Inverter 264,737 51 *
Voltage Inverter II 149,942 19 *

Sound/Radio

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Circuit Author Views Rank Comments Marker
22 Watt Audio Amplifier 487,332 182
3 Watt FM Transmitter Rae XL Tkacik 253,575 80 *
50 Watt Amplifier 399,656 73
8 Note Tune Player 94,041 12 *
8 Watt Audio Amp 278,846 65 *
Aircraft Radio Communications Receiver 189,266 49 *
Crystal Radio 112,551 53 *
Digital Volume Control 261,495 46 *
Electronic Stethoscope 208,986 138 *
FET Audio Mixer 260,548 40
FM Transmitter 839,735 418
Guitar Fuzz Effect 170,122 51 *
Microphone Mixer Anatoly I. Shikhatov 180,059 25 *
Mono To Stereo Synthesizer oRbEq 73,835 16 *
One Tube Regenerative Radio NEW! 72,430 4 *
Op Amp Radio 288,689 80 *
Single Chip AM Radio NEW! 49,906 2 *
Single Chip FM Radio NEW! 90,148 0 *
Sound Level Meter 265,747 50 *
Stereo Tube Amplifier Weslee Kinsler 199,456 15 *
Tone Control 228,952 29
Transistor Organ 134,084 28

Telephone

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Circuit Author Views Rank Comments Marker
Cut Phone Line Detector 119,332 27 *
FM Telephone Bug 177,429 57
Phone Busy Indicator 137,483 24 *
Remote Telephone Ringer 76,831 3 *
Ringing Phone Light Flasher 151,522 32 *
Simple Phone Tap Derek Tombrello 300,693 98 *
Telephone Hold Button 75,533 9
Telephone Recorder 159,220 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.