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, December 21, 2024		 12VDC To 120VAC Inverter17
One Tube Regenerative Radio14
Yesterday
Friday, December 20, 2024		 One Tube Regenerative Radio51
12VDC To 120VAC Inverter43
Of All Time 12VDC To 120VAC Inverter1,540,972
FM Transmitter1,016,802

Auto

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Circuit Author Views Rank Comments Marker
Automatic Headlight Brightness Switch 229,599 61 *
Car Alarm Arming Horn Beep Canceller bob 139,022 6 *
Wireless Auto Tachometer 346,178 58

Computer

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Circuit Author Views Rank Comments Marker
Computer Controlled Frequency Counter/Logic Probe Richard van Wyk 162,305 29 *
Parallel (Printer) Port Interface 290,463 71

Light/Laser

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Circuit Author Views Rank Comments Marker
12VDC Fluorescent Lamp Driver 451,440 63 *
3 Channel Spectrum Analyzer 225,481 20
40W Fluorescent Lamp Inverter Bart Milnes 333,023 60 *
Adjustable Strobe Light 312,739 36
Black Light 285,498 29
Colour (Sound) Organ 294,323 36
Electronic Dice NEW! 192,100 10 *
Fantastic Atom Expander 205,581 25
Flash Slave Trigger 224,534 18 *
Infa-Red Remote Control 641,053 216 *
IR Remote Extender NEW! 135,753 3 *
IR Remote Jammer Carl 269,805 110 *
IR Remote Switch NEW! 160,225 9 *
LASER Transmitter/Receiver 421,190 92
LED Chaser 450,194 83 *
LED Metronome NEW! 102,241 3 *
LED Thermometer 209,632 22 *
Light/Dark Detector 308,800 90 *
Simple Colour Organ 139,992 11 *
Strobe Light 278,644 27 *
TRIAC Light Dimmer 557,354 55

Major Projects

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Circuit Author Views Rank Comments Marker
Computerize Your Room/Home 363,875 122 *
Electromagnetic Levitator NEW! 147,170 15 *

Other

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Circuit Author Views Rank Comments Marker
7 Segment LED Counter 927,323 214 *
AC Motor Speed Controller 396,560 29 *
Air Flow Detector 254,794 54 *
Digital Keypad Combination Lock 204,878 20
Low Voltage Alarm 232,254 58 *
Pine Racecar Victory Judge 105,203 1 *
Pulse Width Modulation DC Motor Control 659,173 94
Rain Detector 308,064 112 *
Simple Lie Detector 568,748 323
Simple Polarity Tester Dudley LeRoux 168,375 13 *
Simple Servo Controller 224,711 22 *
Simple Touch Switch NEW! 172,943 6 *
Simple Two Speed Contactor DC Motor Controller 208,313 21 *
Stepper Motor Controller 753,324 120 *
Time Delay Relay 559,504 88
Time Delay Relay II jawaharlal@excite.com 250,704 39 *
Touch Switch 293,106 51 *
Video Activated Relay 124,564 8 *
Video Stabilizer/MacroVision Removal Antti Paarlahti 184,800 10 *
Water Detector With Sump/Bilge Pump Controller 155,983 18 *
Wire Loop Alarm Alex Meaden 208,502 27 *

Power Supply

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Circuit Author Views Rank Comments Marker
12V To 24V DC-DC Converter NEW! 321,333 25 *
12VDC To 120VAC Inverter 1,540,972 691
6V to 12V Converter 532,331 121
Automatic 12V Lead Acid Battery Charger 942,039 248
Automatic Load Sensing Power Switch 170,683 16 *
Car Battery Charger 887,698 159 *
Dual Polarity Power Supply 375,078 84 *
Fixed Voltage Power Supply 315,105 52 *
High Current Power Supply 344,263 66 *
High Voltage High Current Power Supply 267,619 35 *
LASER Power Supply 300,168 28
Portable CD Player Adapter For Car 215,363 12 *
Power Supply 743,695 259 *
Solid State Tesla Coil NEW! 150,255 4
Solid State Tesla Coil/High Voltage Generator 449,432 51
Transformerless Power Supply 467,255 117 *
Voltage Inverter 344,728 51 *
Voltage Inverter II 206,999 19 *

Sound/Radio

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Circuit Author Views Rank Comments Marker
22 Watt Audio Amplifier 589,358 182
3 Watt FM Transmitter Rae XL Tkacik 340,518 83 *
50 Watt Amplifier 512,718 74
8 Note Tune Player 143,744 12 *
8 Watt Audio Amp 378,257 67 *
Aircraft Radio Communications Receiver 283,464 49 *
Crystal Radio 162,591 53 *
Digital Volume Control 342,591 47 *
Electronic Stethoscope 325,850 142 *
FET Audio Mixer 347,527 41
FM Transmitter 1,016,802 420
Guitar Fuzz Effect 251,542 54 *
Microphone Mixer Anatoly I. Shikhatov 254,349 26 *
Mono To Stereo Synthesizer oRbEq 137,716 18 *
One Tube Regenerative Radio NEW! 149,172 4 *
Op Amp Radio 394,474 80 *
Single Chip AM Radio NEW! 103,066 3 *
Single Chip FM Radio NEW! 176,507 1 *
Sound Level Meter 345,763 51 *
Stereo Tube Amplifier Weslee Kinsler 272,022 15 *
Tone Control 313,744 31
Transistor Organ 203,668 28

Telephone

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Circuit Author Views Rank Comments Marker
Cut Phone Line Detector 166,402 27 *
FM Telephone Bug 237,954 57
Phone Busy Indicator 216,819 24 *
Remote Telephone Ringer 120,942 3 *
Ringing Phone Light Flasher 222,359 35 *
Simple Phone Tap Derek Tombrello 386,726 98 *
Telephone Hold Button 131,898 10
Telephone Recorder 219,670 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.