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, January 17, 2018
12VDC To 120VAC Inverter55
Tone Control48
Yesterday
Tuesday, January 16, 2018
12VDC To 120VAC Inverter58
Car Battery Charger55
Of All Time 12VDC To 120VAC Inverter1,400,754
FM Transmitter928,045

Auto

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Circuit Author Views Rank Comments Marker
Automatic Headlight Brightness Switch 187,379 61 *
Car Alarm Arming Horn Beep Canceller bob 99,316 6 *
Wireless Auto Tachometer 294,816 58

Computer

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Circuit Author Views Rank Comments Marker
Computer Controlled Frequency Counter/Logic Probe Richard van Wyk 130,969 29 *
Parallel (Printer) Port Interface 233,573 71

Light/Laser

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Circuit Author Views Rank Comments Marker
12VDC Fluorescent Lamp Driver 389,495 62 *
3 Channel Spectrum Analyzer 182,172 20
40W Fluorescent Lamp Inverter Bart Milnes 287,521 60 *
Adjustable Strobe Light 260,131 36
Black Light 221,980 29
Colour (Sound) Organ 244,348 36
Electronic Dice NEW! 148,517 9 *
Fantastic Atom Expander 158,618 25
Flash Slave Trigger 179,428 17 *
Infa-Red Remote Control 576,979 216 *
IR Remote Extender NEW! 88,869 2 *
IR Remote Jammer Carl 221,884 110 *
IR Remote Switch NEW! 118,935 9 *
LASER Transmitter/Receiver 359,769 92
LED Chaser 403,211 83 *
LED Metronome NEW! 78,648 3 *
LED Thermometer 173,344 22 *
Light/Dark Detector 272,384 89 *
Simple Colour Organ 108,903 10 *
Strobe Light 240,694 27 *
TRIAC Light Dimmer 452,032 55

Major Projects

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Circuit Author Views Rank Comments Marker
Computerize Your Room/Home 309,117 122 *
Electromagnetic Levitator NEW! 109,784 15 *

Other

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Circuit Author Views Rank Comments Marker
7 Segment LED Counter 852,057 214 *
AC Motor Speed Controller 334,222 29 *
Air Flow Detector 216,882 54 *
Digital Keypad Combination Lock 160,727 20
Low Voltage Alarm 189,983 58 *
Pine Racecar Victory Judge 73,485 1 *
Pulse Width Modulation DC Motor Control 606,145 93
Rain Detector 269,297 112 *
Simple Lie Detector 512,911 323
Simple Polarity Tester Dudley LeRoux 125,521 13 *
Simple Servo Controller 181,895 22 *
Simple Touch Switch NEW! 136,368 5 *
Simple Two Speed Contactor DC Motor Controller 173,376 21 *
Stepper Motor Controller 671,673 120 *
Time Delay Relay 507,261 88
Time Delay Relay II jawaharlal@excite.com 201,804 39 *
Touch Switch 253,534 51 *
Video Activated Relay 91,560 8 *
Video Stabilizer/MacroVision Removal Antti Paarlahti 142,969 10 *
Water Detector With Sump/Bilge Pump Controller 117,090 18 *
Wire Loop Alarm Alex Meaden 175,065 27 *

Power Supply

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Circuit Author Views Rank Comments Marker
12V To 24V DC-DC Converter NEW! 263,563 25 *
12VDC To 120VAC Inverter 1,400,754 687
6V to 12V Converter 443,801 121
Automatic 12V Lead Acid Battery Charger 864,023 246
Automatic Load Sensing Power Switch 130,461 15 *
Car Battery Charger 816,187 159 *
Dual Polarity Power Supply 309,014 84 *
Fixed Voltage Power Supply 274,496 52 *
High Current Power Supply 291,792 64 *
High Voltage High Current Power Supply 218,432 35 *
LASER Power Supply 248,958 28
Portable CD Player Adapter For Car 176,253 12 *
Power Supply 680,917 259 *
Solid State Tesla Coil NEW! 114,114 3
Solid State Tesla Coil/High Voltage Generator 381,925 50
Transformerless Power Supply 414,821 117 *
Voltage Inverter 300,537 51 *
Voltage Inverter II 170,434 19 *

Sound/Radio

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Circuit Author Views Rank Comments Marker
22 Watt Audio Amplifier 540,455 182
3 Watt FM Transmitter Rae XL Tkacik 291,976 81 *
50 Watt Amplifier 456,460 74
8 Note Tune Player 112,806 12 *
8 Watt Audio Amp 324,276 67 *
Aircraft Radio Communications Receiver 228,428 49 *
Crystal Radio 133,667 53 *
Digital Volume Control 292,779 47 *
Electronic Stethoscope 268,623 141 *
FET Audio Mixer 299,281 40
FM Transmitter 928,045 418
Guitar Fuzz Effect 201,726 52 *
Microphone Mixer Anatoly I. Shikhatov 210,772 26 *
Mono To Stereo Synthesizer oRbEq 95,633 18 *
One Tube Regenerative Radio NEW! 100,908 4 *
Op Amp Radio 338,529 80 *
Single Chip AM Radio NEW! 77,496 2 *
Single Chip FM Radio NEW! 129,381 1 *
Sound Level Meter 300,469 51 *
Stereo Tube Amplifier Weslee Kinsler 229,216 15 *
Tone Control 264,493 31
Transistor Organ 159,549 28

Telephone

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Circuit Author Views Rank Comments Marker
Cut Phone Line Detector 134,782 27 *
FM Telephone Bug 199,153 57
Phone Busy Indicator 179,467 24 *
Remote Telephone Ringer 90,940 3 *
Ringing Phone Light Flasher 178,075 33 *
Simple Phone Tap Derek Tombrello 327,026 98 *
Telephone Hold Button 95,118 9
Telephone Recorder 179,793 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.