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
Thursday, November 21, 2024		 Solid State Tesla Coil/High Voltage Generator14
Voltage Inverter11
Yesterday
Wednesday, November 20, 2024		 One Tube Regenerative Radio28
12VDC To 120VAC Inverter26
Of All Time 12VDC To 120VAC Inverter1,539,838
FM Transmitter1,015,995

Auto

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Circuit Author Views Rank Comments Marker
Automatic Headlight Brightness Switch 229,360 61 *
Car Alarm Arming Horn Beep Canceller bob 138,820 6 *
Wireless Auto Tachometer 345,910 58

Computer

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Circuit Author Views Rank Comments Marker
Computer Controlled Frequency Counter/Logic Probe Richard van Wyk 162,080 29 *
Parallel (Printer) Port Interface 290,068 71

Light/Laser

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Circuit Author Views Rank Comments Marker
12VDC Fluorescent Lamp Driver 451,055 63 *
3 Channel Spectrum Analyzer 225,116 20
40W Fluorescent Lamp Inverter Bart Milnes 332,715 60 *
Adjustable Strobe Light 312,396 36
Black Light 285,006 29
Colour (Sound) Organ 293,963 36
Electronic Dice NEW! 191,813 10 *
Fantastic Atom Expander 205,355 25
Flash Slave Trigger 224,251 18 *
Infa-Red Remote Control 640,719 216 *
IR Remote Extender NEW! 135,435 3 *
IR Remote Jammer Carl 269,472 110 *
IR Remote Switch NEW! 159,981 9 *
LASER Transmitter/Receiver 420,787 92
LED Chaser 449,768 83 *
LED Metronome NEW! 101,991 3 *
LED Thermometer 209,378 22 *
Light/Dark Detector 308,529 90 *
Simple Colour Organ 139,724 11 *
Strobe Light 278,353 27 *
TRIAC Light Dimmer 556,905 55

Major Projects

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Circuit Author Views Rank Comments Marker
Computerize Your Room/Home 363,550 122 *
Electromagnetic Levitator NEW! 146,880 15 *

Other

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Circuit Author Views Rank Comments Marker
7 Segment LED Counter 926,795 214 *
AC Motor Speed Controller 395,952 29 *
Air Flow Detector 254,504 54 *
Digital Keypad Combination Lock 204,615 20
Low Voltage Alarm 231,997 58 *
Pine Racecar Victory Judge 104,976 1 *
Pulse Width Modulation DC Motor Control 658,756 94
Rain Detector 307,768 112 *
Simple Lie Detector 568,355 323
Simple Polarity Tester Dudley LeRoux 168,127 13 *
Simple Servo Controller 224,445 22 *
Simple Touch Switch NEW! 172,671 6 *
Simple Two Speed Contactor DC Motor Controller 208,025 21 *
Stepper Motor Controller 752,537 120 *
Time Delay Relay 559,119 88
Time Delay Relay II jawaharlal@excite.com 250,363 39 *
Touch Switch 292,792 51 *
Video Activated Relay 124,328 8 *
Video Stabilizer/MacroVision Removal Antti Paarlahti 184,535 10 *
Water Detector With Sump/Bilge Pump Controller 155,694 18 *
Wire Loop Alarm Alex Meaden 208,229 27 *

Power Supply

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Circuit Author Views Rank Comments Marker
12V To 24V DC-DC Converter NEW! 320,770 25 *
12VDC To 120VAC Inverter 1,539,838 691
6V to 12V Converter 531,897 121
Automatic 12V Lead Acid Battery Charger 941,569 248
Automatic Load Sensing Power Switch 170,393 16 *
Car Battery Charger 887,232 159 *
Dual Polarity Power Supply 374,740 84 *
Fixed Voltage Power Supply 314,738 52 *
High Current Power Supply 343,732 66 *
High Voltage High Current Power Supply 267,295 35 *
LASER Power Supply 299,757 28
Portable CD Player Adapter For Car 215,047 12 *
Power Supply 743,272 259 *
Solid State Tesla Coil NEW! 149,898 4
Solid State Tesla Coil/High Voltage Generator 448,923 51
Transformerless Power Supply 466,922 117 *
Voltage Inverter 344,033 51 *
Voltage Inverter II 206,639 19 *

Sound/Radio

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Circuit Author Views Rank Comments Marker
22 Watt Audio Amplifier 588,977 182
3 Watt FM Transmitter Rae XL Tkacik 340,008 83 *
50 Watt Amplifier 512,250 74
8 Note Tune Player 143,472 12 *
8 Watt Audio Amp 377,807 67 *
Aircraft Radio Communications Receiver 283,005 49 *
Crystal Radio 162,203 53 *
Digital Volume Control 342,261 47 *
Electronic Stethoscope 325,361 142 *
FET Audio Mixer 347,115 41
FM Transmitter 1,015,995 420
Guitar Fuzz Effect 251,205 54 *
Microphone Mixer Anatoly I. Shikhatov 254,007 26 *
Mono To Stereo Synthesizer oRbEq 137,360 18 *
One Tube Regenerative Radio NEW! 148,215 4 *
Op Amp Radio 393,975 80 *
Single Chip AM Radio NEW! 102,788 3 *
Single Chip FM Radio NEW! 176,121 1 *
Sound Level Meter 345,422 51 *
Stereo Tube Amplifier Weslee Kinsler 271,690 15 *
Tone Control 313,360 31
Transistor Organ 203,282 28

Telephone

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Circuit Author Views Rank Comments Marker
Cut Phone Line Detector 166,183 27 *
FM Telephone Bug 237,722 57
Phone Busy Indicator 216,552 24 *
Remote Telephone Ringer 120,732 3 *
Ringing Phone Light Flasher 222,033 35 *
Simple Phone Tap Derek Tombrello 386,459 98 *
Telephone Hold Button 131,641 10
Telephone Recorder 219,400 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.