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 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, March 16, 2010		 12VDC To 120VAC Inverter659
7 Segment LED Counter474
Yesterday
Monday, March 15, 2010		 12VDC To 120VAC Inverter684
7 Segment LED Counter495
Of All Time 12VDC To 120VAC Inverter636,734
FM Transmitter462,800

Auto

 Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Automatic Headlight Brightness Switch 94,997 51 *
Car Alarm Arming Horn Beep Canceller bob 43,759 6 *
Wireless Auto Tachometer 150,092 52

Computer

 Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Computer Controlled Frequency Counter/Logic Probe Richard van Wyk 63,891 29 *
Parallel (Printer) Port Interface 129,672 69

Light/Laser

 Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
12VDC Fluorescent Lamp Driver 184,890 55 *
3 Channel Spectrum Analyzer 61,262 11
40W Fluorescent Lamp Inverter Bart Milnes 136,026 57 *
Adjustable Strobe Light 116,116 26
Black Light 111,654 27
Colour (Sound) Organ 122,808 28
Electronic Dice NEW! 24,067 2 *
Fantastic Atom Expander 71,624 22
Flash Slave Trigger 92,267 15 *
Infa-Red Remote Control 271,098 206 *
IR Remote Extender NEW! 8,559 0 *
IR Remote Jammer Carl 102,840 98 *
IR Remote Switch NEW! 11,191 4 *
LASER Transmitter/Receiver 161,850 84
LED Chaser 167,458 78 *
LED Metronome NEW! 8,568 0 *
LED Thermometer 80,941 18 *
Light/Dark Detector 122,815 84 *
Simple Colour Organ 51,781 10 *
Strobe Light 131,185 26 *
TRIAC Light Dimmer 200,791 50

Major Projects

 Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Computerize Your Room/Home 169,180 119 *
Electromagnetic Levitator NEW! 13,868 2 *

Other

 Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
7 Segment LED Counter 358,043 195 *
AC Motor Speed Controller 84,125 19 *
Air Flow Detector 93,587 49 *
Digital Keypad Combination Lock 55,548 18
Low Voltage Alarm 79,403 50 *
Pine Racecar Victory Judge 30,501 0 *
Pulse Width Modulation DC Motor Control 291,746 87
Rain Detector 125,109 102 *
Simple Lie Detector 245,597 293
Simple Polarity Tester Dudley LeRoux 49,881 11 *
Simple Servo Controller 46,867 10 *
Simple Touch Switch NEW! 13,452 0 *
Simple Two Speed Contactor DC Motor Controller 85,897 20 *
Stepper Motor Controller 323,852 107 *
Time Delay Relay 196,568 65
Time Delay Relay II jawaharlal@excite.com 92,876 34 *
Touch Switch 133,477 47 *
Video Activated Relay 36,906 6 *
Video Stabilizer/MacroVision Removal Antti Paarlahti 63,030 7 *
Water Detector With Sump/Bilge Pump Controller 47,184 16 *
Wire Loop Alarm Alex Meaden 82,341 27 *

Power Supply

 Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
12V To 24V DC-DC Converter NEW! 18,096 7 *
12VDC To 120VAC Inverter 636,734 647
6V to 12V Converter 182,391 107
Automatic 12V Lead Acid Battery Charger 253,777 182
Automatic Load Sensing Power Switch 53,745 12 *
Car Battery Charger 422,469 146 *
Dual Polarity Power Supply 132,150 75 *
Fixed Voltage Power Supply 123,709 43 *
High Current Power Supply 134,526 58 *
High Voltage High Current Power Supply 108,469 28 *
LASER Power Supply 111,624 27
Portable CD Player Adapter For Car 86,388 11 *
Power Supply 347,774 250 *
Solid State Tesla Coil NEW! 10,324 0
Solid State Tesla Coil/High Voltage Generator 161,121 43
Transformerless Power Supply 185,371 108 *
Voltage Inverter 144,979 48 *
Voltage Inverter II 83,696 19 *

Sound/Radio

 Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
22 Watt Audio Amplifier 232,231 170
3 Watt FM Transmitter Rae XL Tkacik 124,527 68 *
50 Watt Amplifier 225,589 71
8 Note Tune Player 53,376 10 *
8 Watt Audio Amp 149,927 57 *
Aircraft Radio Communications Receiver 88,366 40 *
Crystal Radio 62,101 50 *
Digital Volume Control 145,067 40 *
Electronic Stethoscope 101,991 132 *
FET Audio Mixer 117,978 30
FM Transmitter 462,800 366
Guitar Fuzz Effect 82,505 45 *
Microphone Mixer Anatoly I. Shikhatov 93,370 20 *
Mono To Stereo Synthesizer oRbEq 38,989 14 *
One Tube Regenerative Radio NEW! 7,842 1 *
Op Amp Radio 139,564 69 *
Single Chip AM Radio NEW! 6,646 0 *
Single Chip FM Radio NEW! 11,669 0 *
Sound Level Meter 142,076 42 *
Stereo Tube Amplifier Weslee Kinsler 101,256 13 *
Tone Control 116,902 21
Transistor Organ 71,988 23

Telephone

 Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Cut Phone Line Detector 65,710 26 *
FM Telephone Bug 103,702 49
Phone Busy Indicator 64,159 19 *
Remote Telephone Ringer 42,277 2 *
Ringing Phone Light Flasher 78,256 24 *
Simple Phone Tap Derek Tombrello 185,716 92 *
Telephone Hold Button 38,651 7
Telephone Recorder 96,349 51 *

Back To Electronics Page | Mail Me | Search

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.