Electronic Circuits

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 17
Major Projects 1
Other 20
Power Supply 16
Sound/Radio 19
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
Friday, May 09, 2008		 12VDC To 120VAC Inverter568
FM Transmitter388
Yesterday
Thursday, May 08, 2008		 12VDC To 120VAC Inverter725
Power Supply436
Of All Time 12VDC To 120VAC Inverter244,098
FM Transmitter205,942

Auto

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Circuit Author Views Rank Comments Marker
Automatic Headlight Brightness Switch 47,195 42 *
Car Alarm Arming Horn Beep Canceller NEW! bob 11,329 2 *
Wireless Auto Tachometer 65,178 41

Computer

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Circuit Author Views Rank Comments Marker
Computer Controlled Frequency Counter/Logic Probe Richard van Wyk 29,868 25 *
Parallel (Printer) Port Interface 57,415 58

Light/Laser

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Circuit Author Views Rank Comments Marker
12VDC Fluorescent Lamp Driver 71,923 41 *
3 Channel Spectrum Analyzer 24,144 10
40W Fluorescent Lamp Inverter Bart Milnes 52,127 38 *
Adjustable Strobe Light 50,874 17
Black Light 50,080 24
Colour (Sound) Organ 52,863 20
Fantastic Atom Expander 30,499 16
Flash Slave Trigger 38,631 11 *
Infa-Red Remote Control 116,474 172 *
IR Remote Jammer Carl 42,701 79 *
LASER Transmitter/Receiver 63,619 67
LED Chaser 65,069 53 *
LED Thermometer NEW! 21,058 6 *
Light/Dark Detector 49,899 70 *
Simple Colour Organ 17,277 5 *
Strobe Light 60,487 17 *
TRIAC Light Dimmer 80,939 43

Major Projects

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Circuit Author Views Rank Comments Marker
Computerize Your Room/Home 77,001 109 *

Other

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Circuit Author Views Rank Comments Marker
7 Segment LED Counter 125,072 146 *
AC Motor Speed Controller NEW! 14,077 6 *
Air Flow Detector 38,921 39 *
Digital Keypad Combination Lock NEW! 11,771 8
Low Voltage Alarm 30,796 41 *
Pine Racecar Victory Judge 12,724 0 *
Pulse Width Modulation DC Motor Control 109,118 68
Rain Detector 49,244 77 *
Simple Lie Detector 97,208 234
Simple Polarity Tester Dudley LeRoux 20,200 11 *
Simple Servo Controller NEW! 9,549 1 *
Simple Two Speed Contactor DC Motor Controller 35,751 16 *
Stepper Motor Controller 125,059 76 *
Time Delay Relay 68,379 37
Time Delay Relay II jawaharlal@excite.com 35,449 24 *
Touch Switch 52,258 35 *
Video Activated Relay 15,913 6 *
Video Stabilizer/MacroVision Removal Antti Paarlahti 27,064 4 *
Water Detector With Sump/Bilge Pump Controller NEW! 10,347 8 *
Wire Loop Alarm Alex Meaden 33,968 22 *

Power Supply

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Circuit Author Views Rank Comments Marker
12VDC To 120VAC Inverter 244,098 538
6V to 12V Converter 67,353 80
Automatic 12V Lead Acid Battery Charger 80,447 114
Automatic Load Sensing Power Switch NEW! 13,045 6 *
Car Battery Charger 162,808 97 *
Dual Polarity Power Supply 48,489 60 *
Fixed Voltage Power Supply 42,276 36 *
High Current Power Supply 55,351 47 *
High Voltage High Current Power Supply 43,917 15 *
LASER Power Supply 44,992 22
Portable CD Player Adapter For Car 35,931 8 *
Power Supply 142,573 220 *
Solid State Tesla Coil/High Voltage Generator 62,762 29
Transformerless Power Supply 73,158 85 *
Voltage Inverter 61,867 41 *
Voltage Inverter II 35,048 13 *

Sound/Radio

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Circuit Author Views Rank Comments Marker
22 Watt Audio Amplifier 92,948 122
3 Watt FM Transmitter Rae XL Tkacik 47,873 58 *
50 Watt Amplifier 94,911 62
8 Note Tune Player 22,522 8 *
8 Watt Audio Amp 62,296 51 *
Aircraft Radio Communications Receiver NEW! 18,453 19 *
Crystal Radio 25,512 39 *
Digital Volume Control 58,589 33 *
Electronic Stethoscope 42,568 114 *
FET Audio Mixer 47,152 17
FM Transmitter 205,942 309
Guitar Fuzz Effect 32,333 25 *
Microphone Mixer Anatoly I. Shikhatov 36,421 17 *
Mono To Stereo Synthesizer oRbEq 18,056 12 *
Op Amp Radio 58,873 45 *
Sound Level Meter 59,487 27 *
Stereo Tube Amplifier Weslee Kinsler 40,949 8 *
Tone Control 45,500 8
Transistor Organ 27,485 14

Telephone

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Circuit Author Views Rank Comments Marker
Cut Phone Line Detector 27,559 20 *
FM Telephone Bug 45,603 37
Phone Busy Indicator 32,105 10 *
Remote Telephone Ringer NEW! 10,413 0 *
Ringing Phone Light Flasher 33,020 17 *
Simple Phone Tap Derek Tombrello 76,194 62 *
Telephone Hold Button 16,691 6
Telephone Recorder 46,017 48 *

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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.