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
Wednesday, July 24, 2024
12VDC To 120VAC Inverter12
FM Transmitter10
Yesterday
Tuesday, July 23, 2024
12VDC To 120VAC Inverter51
FM Transmitter33
Of All Time 12VDC To 120VAC Inverter1,535,217
FM Transmitter1,012,301

Auto

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Circuit Author Views Rank Comments Marker
Automatic Headlight Brightness Switch 228,358 61 *
Car Alarm Arming Horn Beep Canceller bob 137,847 6 *
Wireless Auto Tachometer 344,635 58

Computer

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Circuit Author Views Rank Comments Marker
Computer Controlled Frequency Counter/Logic Probe Richard van Wyk 161,156 29 *
Parallel (Printer) Port Interface 288,291 71

Light/Laser

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Circuit Author Views Rank Comments Marker
12VDC Fluorescent Lamp Driver 449,480 63 *
3 Channel Spectrum Analyzer 223,664 20
40W Fluorescent Lamp Inverter Bart Milnes 331,642 60 *
Adjustable Strobe Light 310,722 36
Black Light 282,909 29
Colour (Sound) Organ 292,469 36
Electronic Dice NEW! 190,755 10 *
Fantastic Atom Expander 204,382 25
Flash Slave Trigger 222,895 18 *
Infa-Red Remote Control 639,062 216 *
IR Remote Extender NEW! 134,249 3 *
IR Remote Jammer Carl 267,973 110 *
IR Remote Switch NEW! 159,085 9 *
LASER Transmitter/Receiver 418,856 92
LED Chaser 447,975 83 *
LED Metronome NEW! 100,968 3 *
LED Thermometer 208,240 22 *
Light/Dark Detector 307,565 90 *
Simple Colour Organ 138,818 11 *
Strobe Light 277,235 27 *
TRIAC Light Dimmer 555,075 55

Major Projects

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Circuit Author Views Rank Comments Marker
Computerize Your Room/Home 361,226 122 *
Electromagnetic Levitator NEW! 145,844 15 *

Other

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Circuit Author Views Rank Comments Marker
7 Segment LED Counter 924,587 214 *
AC Motor Speed Controller 393,768 29 *
Air Flow Detector 253,428 54 *
Digital Keypad Combination Lock 203,718 20
Low Voltage Alarm 230,847 58 *
Pine Racecar Victory Judge 104,042 1 *
Pulse Width Modulation DC Motor Control 656,973 94
Rain Detector 306,368 112 *
Simple Lie Detector 566,647 323
Simple Polarity Tester Dudley LeRoux 167,031 13 *
Simple Servo Controller 223,111 22 *
Simple Touch Switch NEW! 171,537 6 *
Simple Two Speed Contactor DC Motor Controller 206,828 21 *
Stepper Motor Controller 749,043 120 *
Time Delay Relay 557,535 88
Time Delay Relay II jawaharlal@excite.com 248,937 39 *
Touch Switch 291,429 51 *
Video Activated Relay 123,347 8 *
Video Stabilizer/MacroVision Removal Antti Paarlahti 183,162 10 *
Water Detector With Sump/Bilge Pump Controller 154,550 18 *
Wire Loop Alarm Alex Meaden 207,182 27 *

Power Supply

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Circuit Author Views Rank Comments Marker
12V To 24V DC-DC Converter NEW! 318,438 25 *
12VDC To 120VAC Inverter 1,535,217 691
6V to 12V Converter 529,974 121
Automatic 12V Lead Acid Battery Charger 939,479 248
Automatic Load Sensing Power Switch 169,118 16 *
Car Battery Charger 885,387 159 *
Dual Polarity Power Supply 373,151 84 *
Fixed Voltage Power Supply 313,107 52 *
High Current Power Supply 341,381 66 *
High Voltage High Current Power Supply 265,816 35 *
LASER Power Supply 298,172 28
Portable CD Player Adapter For Car 213,951 12 *
Power Supply 741,544 259 *
Solid State Tesla Coil NEW! 148,352 4
Solid State Tesla Coil/High Voltage Generator 446,818 51
Transformerless Power Supply 465,258 117 *
Voltage Inverter 341,725 51 *
Voltage Inverter II 205,130 19 *

Sound/Radio

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Circuit Author Views Rank Comments Marker
22 Watt Audio Amplifier 587,466 182
3 Watt FM Transmitter Rae XL Tkacik 337,903 83 *
50 Watt Amplifier 510,141 74
8 Note Tune Player 142,246 12 *
8 Watt Audio Amp 375,613 67 *
Aircraft Radio Communications Receiver 280,959 49 *
Crystal Radio 160,735 53 *
Digital Volume Control 340,549 47 *
Electronic Stethoscope 323,407 142 *
FET Audio Mixer 345,510 41
FM Transmitter 1,012,301 420
Guitar Fuzz Effect 249,681 54 *
Microphone Mixer Anatoly I. Shikhatov 252,507 26 *
Mono To Stereo Synthesizer oRbEq 135,782 18 *
One Tube Regenerative Radio NEW! 145,082 4 *
Op Amp Radio 391,619 80 *
Single Chip AM Radio NEW! 101,599 3 *
Single Chip FM Radio NEW! 174,633 1 *
Sound Level Meter 343,946 51 *
Stereo Tube Amplifier Weslee Kinsler 270,275 15 *
Tone Control 311,718 31
Transistor Organ 201,678 28

Telephone

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Circuit Author Views Rank Comments Marker
Cut Phone Line Detector 165,158 27 *
FM Telephone Bug 236,841 57
Phone Busy Indicator 215,554 24 *
Remote Telephone Ringer 119,791 3 *
Ringing Phone Light Flasher 220,411 35 *
Simple Phone Tap Derek Tombrello 385,298 98 *
Telephone Hold Button 130,653 10
Telephone Recorder 218,187 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.