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, December 17, 2017
12VDC To 120VAC Inverter66
FM Transmitter61
Yesterday
Saturday, December 16, 2017
12VDC To 120VAC Inverter86
Power Supply73
Of All Time 12VDC To 120VAC Inverter1,398,464
FM Transmitter926,867

Auto

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Circuit Author Views Rank Comments Marker
Automatic Headlight Brightness Switch 187,012 61 *
Car Alarm Arming Horn Beep Canceller bob 98,996 6 *
Wireless Auto Tachometer 294,320 58

Computer

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Circuit Author Views Rank Comments Marker
Computer Controlled Frequency Counter/Logic Probe Richard van Wyk 130,642 29 *
Parallel (Printer) Port Interface 233,122 71

Light/Laser

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Circuit Author Views Rank Comments Marker
12VDC Fluorescent Lamp Driver 388,823 62 *
3 Channel Spectrum Analyzer 181,553 20
40W Fluorescent Lamp Inverter Bart Milnes 287,009 60 *
Adjustable Strobe Light 259,579 36
Black Light 221,368 29
Colour (Sound) Organ 243,794 36
Electronic Dice NEW! 148,170 9 *
Fantastic Atom Expander 158,114 25
Flash Slave Trigger 179,015 17 *
Infa-Red Remote Control 576,338 216 *
IR Remote Extender NEW! 88,387 2 *
IR Remote Jammer Carl 221,353 110 *
IR Remote Switch NEW! 118,401 9 *
LASER Transmitter/Receiver 359,169 92
LED Chaser 402,598 83 *
LED Metronome NEW! 78,280 3 *
LED Thermometer 172,797 22 *
Light/Dark Detector 271,857 89 *
Simple Colour Organ 108,598 10 *
Strobe Light 240,290 27 *
TRIAC Light Dimmer 451,223 55

Major Projects

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Circuit Author Views Rank Comments Marker
Computerize Your Room/Home 308,569 122 *
Electromagnetic Levitator NEW! 109,327 15 *

Other

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Circuit Author Views Rank Comments Marker
7 Segment LED Counter 850,997 214 *
AC Motor Speed Controller 333,355 29 *
Air Flow Detector 216,453 54 *
Digital Keypad Combination Lock 160,251 20
Low Voltage Alarm 189,536 58 *
Pine Racecar Victory Judge 73,189 1 *
Pulse Width Modulation DC Motor Control 605,345 93
Rain Detector 268,869 112 *
Simple Lie Detector 512,258 323
Simple Polarity Tester Dudley LeRoux 125,050 13 *
Simple Servo Controller 181,430 22 *
Simple Touch Switch NEW! 135,889 5 *
Simple Two Speed Contactor DC Motor Controller 172,967 21 *
Stepper Motor Controller 669,951 120 *
Time Delay Relay 506,322 88
Time Delay Relay II jawaharlal@excite.com 201,300 39 *
Touch Switch 253,067 51 *
Video Activated Relay 91,211 8 *
Video Stabilizer/MacroVision Removal Antti Paarlahti 142,480 10 *
Water Detector With Sump/Bilge Pump Controller 116,627 18 *
Wire Loop Alarm Alex Meaden 174,669 27 *

Power Supply

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Circuit Author Views Rank Comments Marker
12V To 24V DC-DC Converter NEW! 262,845 25 *
12VDC To 120VAC Inverter 1,398,464 687
6V to 12V Converter 442,277 121
Automatic 12V Lead Acid Battery Charger 862,425 246
Automatic Load Sensing Power Switch 129,943 15 *
Car Battery Charger 814,771 159 *
Dual Polarity Power Supply 307,164 84 *
Fixed Voltage Power Supply 274,035 52 *
High Current Power Supply 291,261 64 *
High Voltage High Current Power Supply 218,000 35 *
LASER Power Supply 248,367 28
Portable CD Player Adapter For Car 175,749 12 *
Power Supply 679,843 259 *
Solid State Tesla Coil NEW! 113,477 3
Solid State Tesla Coil/High Voltage Generator 380,964 50
Transformerless Power Supply 414,201 117 *
Voltage Inverter 299,983 51 *
Voltage Inverter II 170,071 19 *

Sound/Radio

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Circuit Author Views Rank Comments Marker
22 Watt Audio Amplifier 539,646 182
3 Watt FM Transmitter Rae XL Tkacik 291,292 81 *
50 Watt Amplifier 455,510 74
8 Note Tune Player 112,488 12 *
8 Watt Audio Amp 323,577 67 *
Aircraft Radio Communications Receiver 227,809 49 *
Crystal Radio 133,322 53 *
Digital Volume Control 292,163 47 *
Electronic Stethoscope 267,993 141 *
FET Audio Mixer 298,455 40
FM Transmitter 926,867 418
Guitar Fuzz Effect 201,148 52 *
Microphone Mixer Anatoly I. Shikhatov 210,070 26 *
Mono To Stereo Synthesizer oRbEq 95,262 18 *
One Tube Regenerative Radio NEW! 100,334 4 *
Op Amp Radio 337,431 80 *
Single Chip AM Radio NEW! 77,102 2 *
Single Chip FM Radio NEW! 128,715 1 *
Sound Level Meter 299,850 51 *
Stereo Tube Amplifier Weslee Kinsler 228,731 15 *
Tone Control 263,796 31
Transistor Organ 159,118 28

Telephone

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Circuit Author Views Rank Comments Marker
Cut Phone Line Detector 134,471 27 *
FM Telephone Bug 198,781 57
Phone Busy Indicator 178,778 24 *
Remote Telephone Ringer 90,643 3 *
Ringing Phone Light Flasher 177,499 33 *
Simple Phone Tap Derek Tombrello 326,585 98 *
Telephone Hold Button 94,800 9
Telephone Recorder 179,431 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.