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
Tuesday, May 23, 2017
12VDC To 120VAC Inverter10
Power Supply8
Yesterday
Monday, May 22, 2017
12VDC To 120VAC Inverter119
Dual Polarity Power Supply84
Of All Time 12VDC To 120VAC Inverter1,378,111
FM Transmitter917,076

Auto

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Circuit Author Views Rank Comments Marker
Automatic Headlight Brightness Switch 183,265 61 *
Car Alarm Arming Horn Beep Canceller bob 95,950 6 *
Wireless Auto Tachometer 290,081 58

Computer

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Circuit Author Views Rank Comments Marker
Computer Controlled Frequency Counter/Logic Probe Richard van Wyk 127,144 29 *
Parallel (Printer) Port Interface 229,371 71

Light/Laser

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Circuit Author Views Rank Comments Marker
12VDC Fluorescent Lamp Driver 383,533 62 *
3 Channel Spectrum Analyzer 176,694 20
40W Fluorescent Lamp Inverter Bart Milnes 282,607 60 *
Adjustable Strobe Light 254,409 36
Black Light 216,851 29
Colour (Sound) Organ 239,301 36
Electronic Dice NEW! 144,924 9 *
Fantastic Atom Expander 153,778 25
Flash Slave Trigger 175,287 17 *
Infa-Red Remote Control 571,238 216 *
IR Remote Extender NEW! 84,507 2 *
IR Remote Jammer Carl 217,169 110 *
IR Remote Switch NEW! 114,924 9 *
LASER Transmitter/Receiver 354,591 92
LED Chaser 397,254 83 *
LED Metronome NEW! 75,428 3 *
LED Thermometer 168,822 22 *
Light/Dark Detector 266,998 89 *
Simple Colour Organ 105,485 10 *
Strobe Light 236,332 27 *
TRIAC Light Dimmer 444,969 55

Major Projects

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Circuit Author Views Rank Comments Marker
Computerize Your Room/Home 304,804 122 *
Electromagnetic Levitator NEW! 105,379 15 *

Other

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Circuit Author Views Rank Comments Marker
7 Segment LED Counter 842,889 214 *
AC Motor Speed Controller 326,640 29 *
Air Flow Detector 212,325 54 *
Digital Keypad Combination Lock 156,577 20
Low Voltage Alarm 184,494 58 *
Pine Racecar Victory Judge 70,136 1 *
Pulse Width Modulation DC Motor Control 598,972 93
Rain Detector 264,883 112 *
Simple Lie Detector 506,846 323
Simple Polarity Tester Dudley LeRoux 121,234 13 *
Simple Servo Controller 176,985 22 *
Simple Touch Switch NEW! 132,394 5 *
Simple Two Speed Contactor DC Motor Controller 169,171 21 *
Stepper Motor Controller 660,460 120 *
Time Delay Relay 499,576 88
Time Delay Relay II jawaharlal@excite.com 197,126 39 *
Touch Switch 248,394 51 *
Video Activated Relay 87,913 8 *
Video Stabilizer/MacroVision Removal Antti Paarlahti 139,341 10 *
Water Detector With Sump/Bilge Pump Controller 113,336 18 *
Wire Loop Alarm Alex Meaden 170,745 27 *

Power Supply

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Circuit Author Views Rank Comments Marker
12V To 24V DC-DC Converter NEW! 256,764 25 *
12VDC To 120VAC Inverter 1,378,111 687
6V to 12V Converter 434,004 121
Automatic 12V Lead Acid Battery Charger 850,162 246
Automatic Load Sensing Power Switch 126,125 15 *
Car Battery Charger 805,033 159 *
Dual Polarity Power Supply 292,786 84 *
Fixed Voltage Power Supply 270,008 52 *
High Current Power Supply 286,381 64 *
High Voltage High Current Power Supply 214,313 35 *
LASER Power Supply 243,505 28
Portable CD Player Adapter For Car 171,164 12 *
Power Supply 671,753 259 *
Solid State Tesla Coil NEW! 109,454 3
Solid State Tesla Coil/High Voltage Generator 373,421 50
Transformerless Power Supply 408,999 117 *
Voltage Inverter 295,018 51 *
Voltage Inverter II 167,552 19 *

Sound/Radio

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Circuit Author Views Rank Comments Marker
22 Watt Audio Amplifier 532,754 182
3 Watt FM Transmitter Rae XL Tkacik 286,183 81 *
50 Watt Amplifier 448,601 74
8 Note Tune Player 109,315 12 *
8 Watt Audio Amp 317,571 67 *
Aircraft Radio Communications Receiver 222,229 49 *
Crystal Radio 130,058 53 *
Digital Volume Control 287,026 47 *
Electronic Stethoscope 262,205 141 *
FET Audio Mixer 292,062 40
FM Transmitter 917,076 418
Guitar Fuzz Effect 196,534 52 *
Microphone Mixer Anatoly I. Shikhatov 205,234 26 *
Mono To Stereo Synthesizer oRbEq 91,929 18 *
One Tube Regenerative Radio NEW! 96,200 4 *
Op Amp Radio 331,222 80 *
Single Chip AM Radio NEW! 74,145 2 *
Single Chip FM Radio NEW! 124,121 1 *
Sound Level Meter 295,526 51 *
Stereo Tube Amplifier Weslee Kinsler 224,595 15 *
Tone Control 257,791 31
Transistor Organ 155,239 28

Telephone

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Circuit Author Views Rank Comments Marker
Cut Phone Line Detector 131,777 27 *
FM Telephone Bug 195,343 57
Phone Busy Indicator 173,555 24 *
Remote Telephone Ringer 87,978 3 *
Ringing Phone Light Flasher 172,967 33 *
Simple Phone Tap Derek Tombrello 323,002 98 *
Telephone Hold Button 91,775 9
Telephone Recorder 175,837 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.