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		 One Tube Regenerative Radio11
12VDC To 120VAC Inverter10
Yesterday
Friday, December 20, 2024		 One Tube Regenerative Radio51
12VDC To 120VAC Inverter43
Of All Time 12VDC To 120VAC Inverter1,540,965
FM Transmitter1,016,802

Auto

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Circuit Author Views Rank Comments Marker
Automatic Headlight Brightness Switch 229,597 61 *
Car Alarm Arming Horn Beep Canceller bob 139,022 6 *
Wireless Auto Tachometer 346,177 58

Computer

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Circuit Author Views Rank Comments Marker
Computer Controlled Frequency Counter/Logic Probe Richard van Wyk 162,304 29 *
Parallel (Printer) Port Interface 290,462 71

Light/Laser

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Circuit Author Views Rank Comments Marker
12VDC Fluorescent Lamp Driver 451,439 63 *
3 Channel Spectrum Analyzer 225,481 20
40W Fluorescent Lamp Inverter Bart Milnes 333,023 60 *
Adjustable Strobe Light 312,738 36
Black Light 285,498 29
Colour (Sound) Organ 294,318 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! 160,222 9 *
LASER Transmitter/Receiver 421,189 92
LED Chaser 450,194 83 *
LED Metronome NEW! 102,240 3 *
LED Thermometer 209,631 22 *
Light/Dark Detector 308,797 90 *
Simple Colour Organ 139,991 11 *
Strobe Light 278,642 27 *
TRIAC Light Dimmer 557,353 55

Major Projects

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Circuit Author Views Rank Comments Marker
Computerize Your Room/Home 363,873 122 *
Electromagnetic Levitator NEW! 147,169 15 *

Other

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Circuit Author Views Rank Comments Marker
7 Segment LED Counter 927,318 214 *
AC Motor Speed Controller 396,557 29 *
Air Flow Detector 254,792 54 *
Digital Keypad Combination Lock 204,876 20
Low Voltage Alarm 232,254 58 *
Pine Racecar Victory Judge 105,202 1 *
Pulse Width Modulation DC Motor Control 659,172 94
Rain Detector 308,062 112 *
Simple Lie Detector 568,746 323
Simple Polarity Tester Dudley LeRoux 168,373 13 *
Simple Servo Controller 224,709 22 *
Simple Touch Switch NEW! 172,942 6 *
Simple Two Speed Contactor DC Motor Controller 208,312 21 *
Stepper Motor Controller 753,320 120 *
Time Delay Relay 559,501 88
Time Delay Relay II jawaharlal@excite.com 250,702 39 *
Touch Switch 293,104 51 *
Video Activated Relay 124,563 8 *
Video Stabilizer/MacroVision Removal Antti Paarlahti 184,798 10 *
Water Detector With Sump/Bilge Pump Controller 155,982 18 *
Wire Loop Alarm Alex Meaden 208,500 27 *

Power Supply

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Circuit Author Views Rank Comments Marker
12V To 24V DC-DC Converter NEW! 321,331 25 *
12VDC To 120VAC Inverter 1,540,965 691
6V to 12V Converter 532,329 121
Automatic 12V Lead Acid Battery Charger 942,038 248
Automatic Load Sensing Power Switch 170,679 16 *
Car Battery Charger 887,698 159 *
Dual Polarity Power Supply 375,073 84 *
Fixed Voltage Power Supply 315,103 52 *
High Current Power Supply 344,261 66 *
High Voltage High Current Power Supply 267,618 35 *
LASER Power Supply 300,165 28
Portable CD Player Adapter For Car 215,363 12 *
Power Supply 743,693 259 *
Solid State Tesla Coil NEW! 150,254 4
Solid State Tesla Coil/High Voltage Generator 449,429 51
Transformerless Power Supply 467,253 117 *
Voltage Inverter 344,723 51 *
Voltage Inverter II 206,996 19 *

Sound/Radio

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Circuit Author Views Rank Comments Marker
22 Watt Audio Amplifier 589,356 182
3 Watt FM Transmitter Rae XL Tkacik 340,516 83 *
50 Watt Amplifier 512,718 74
8 Note Tune Player 143,740 12 *
8 Watt Audio Amp 378,256 67 *
Aircraft Radio Communications Receiver 283,463 49 *
Crystal Radio 162,591 53 *
Digital Volume Control 342,591 47 *
Electronic Stethoscope 325,849 142 *
FET Audio Mixer 347,523 41
FM Transmitter 1,016,802 420
Guitar Fuzz Effect 251,536 54 *
Microphone Mixer Anatoly I. Shikhatov 254,348 26 *
Mono To Stereo Synthesizer oRbEq 137,716 18 *
One Tube Regenerative Radio NEW! 149,169 4 *
Op Amp Radio 394,470 80 *
Single Chip AM Radio NEW! 103,064 3 *
Single Chip FM Radio NEW! 176,506 1 *
Sound Level Meter 345,759 51 *
Stereo Tube Amplifier Weslee Kinsler 272,020 15 *
Tone Control 313,743 31
Transistor Organ 203,666 28

Telephone

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Circuit Author Views Rank Comments Marker
Cut Phone Line Detector 166,401 27 *
FM Telephone Bug 237,954 57
Phone Busy Indicator 216,818 24 *
Remote Telephone Ringer 120,941 3 *
Ringing Phone Light Flasher 222,358 35 *
Simple Phone Tap Derek Tombrello 386,723 98 *
Telephone Hold Button 131,897 10
Telephone Recorder 219,669 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.