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, October 01, 2016
12VDC To 120VAC Inverter65
Stepper Motor Controller53
Yesterday
Friday, September 30, 2016
12VDC To 120VAC Inverter87
FM Transmitter82
Of All Time 12VDC To 120VAC Inverter1,355,669
FM Transmitter905,702

Auto

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Circuit Author Views Rank Comments Marker
Automatic Headlight Brightness Switch 179,882 61 *
Car Alarm Arming Horn Beep Canceller bob 93,584 6 *
Wireless Auto Tachometer 286,070 58

Computer

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Circuit Author Views Rank Comments Marker
Computer Controlled Frequency Counter/Logic Probe Richard van Wyk 123,808 29 *
Parallel (Printer) Port Interface 225,941 71

Light/Laser

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Circuit Author Views Rank Comments Marker
12VDC Fluorescent Lamp Driver 377,292 62 *
3 Channel Spectrum Analyzer 171,376 20
40W Fluorescent Lamp Inverter Bart Milnes 277,813 60 *
Adjustable Strobe Light 249,096 36
Black Light 211,681 29
Colour (Sound) Organ 234,303 35
Electronic Dice NEW! 139,721 8 *
Fantastic Atom Expander 148,997 25
Flash Slave Trigger 171,358 17 *
Infa-Red Remote Control 564,577 216 *
IR Remote Extender NEW! 80,345 2 *
IR Remote Jammer Carl 212,284 110 *
IR Remote Switch NEW! 111,411 9 *
LASER Transmitter/Receiver 348,178 91
LED Chaser 391,550 83 *
LED Metronome NEW! 72,260 3 *
LED Thermometer 164,993 22 *
Light/Dark Detector 260,305 89 *
Simple Colour Organ 102,434 10 *
Strobe Light 232,541 27 *
TRIAC Light Dimmer 438,281 55

Major Projects

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Circuit Author Views Rank Comments Marker
Computerize Your Room/Home 301,027 122 *
Electromagnetic Levitator NEW! 100,824 15 *

Other

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Circuit Author Views Rank Comments Marker
7 Segment LED Counter 832,446 214 *
AC Motor Speed Controller 318,053 29 *
Air Flow Detector 207,336 54 *
Digital Keypad Combination Lock 152,856 20
Low Voltage Alarm 179,311 58 *
Pine Racecar Victory Judge 67,490 1 *
Pulse Width Modulation DC Motor Control 590,664 93
Rain Detector 260,330 112 *
Simple Lie Detector 500,131 323
Simple Polarity Tester Dudley LeRoux 117,057 13 *
Simple Servo Controller 172,908 22 *
Simple Touch Switch NEW! 128,331 5 *
Simple Two Speed Contactor DC Motor Controller 165,466 21 *
Stepper Motor Controller 650,873 120 *
Time Delay Relay 491,534 86
Time Delay Relay II jawaharlal@excite.com 193,156 39 *
Touch Switch 244,389 51 *
Video Activated Relay 84,508 8 *
Video Stabilizer/MacroVision Removal Antti Paarlahti 135,555 10 *
Water Detector With Sump/Bilge Pump Controller 110,833 18 *
Wire Loop Alarm Alex Meaden 166,929 27 *

Power Supply

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Circuit Author Views Rank Comments Marker
12V To 24V DC-DC Converter NEW! 247,638 25 *
12VDC To 120VAC Inverter 1,355,669 686
6V to 12V Converter 424,582 121
Automatic 12V Lead Acid Battery Charger 834,208 243
Automatic Load Sensing Power Switch 121,914 15 *
Car Battery Charger 793,957 159 *
Dual Polarity Power Supply 285,589 84 *
Fixed Voltage Power Supply 264,795 52 *
High Current Power Supply 280,402 64 *
High Voltage High Current Power Supply 209,816 35 *
LASER Power Supply 237,388 28
Portable CD Player Adapter For Car 165,966 12 *
Power Supply 661,398 259 *
Solid State Tesla Coil NEW! 105,151 3
Solid State Tesla Coil/High Voltage Generator 363,607 49
Transformerless Power Supply 402,667 116 *
Voltage Inverter 288,870 51 *
Voltage Inverter II 164,701 19 *

Sound/Radio

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Circuit Author Views Rank Comments Marker
22 Watt Audio Amplifier 525,238 182
3 Watt FM Transmitter Rae XL Tkacik 280,491 81 *
50 Watt Amplifier 440,612 74
8 Note Tune Player 105,903 12 *
8 Watt Audio Amp 310,604 67 *
Aircraft Radio Communications Receiver 216,246 49 *
Crystal Radio 126,333 53 *
Digital Volume Control 281,843 46 *
Electronic Stethoscope 255,092 141 *
FET Audio Mixer 285,764 40
FM Transmitter 905,702 418
Guitar Fuzz Effect 191,507 52 *
Microphone Mixer Anatoly I. Shikhatov 199,574 25 *
Mono To Stereo Synthesizer oRbEq 88,459 17 *
One Tube Regenerative Radio NEW! 91,114 4 *
Op Amp Radio 323,852 80 *
Single Chip AM Radio NEW! 70,857 2 *
Single Chip FM Radio NEW! 118,131 0 *
Sound Level Meter 290,686 51 *
Stereo Tube Amplifier Weslee Kinsler 220,531 15 *
Tone Control 252,307 31
Transistor Organ 151,197 28

Telephone

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Circuit Author Views Rank Comments Marker
Cut Phone Line Detector 128,969 27 *
FM Telephone Bug 192,119 57
Phone Busy Indicator 165,668 24 *
Remote Telephone Ringer 85,511 3 *
Ringing Phone Light Flasher 168,358 33 *
Simple Phone Tap Derek Tombrello 319,239 98 *
Telephone Hold Button 88,000 9
Telephone Recorder 172,394 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.