Electronic Circuits


Home > Electronics > 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
Friday, November 24, 2017
7 Segment LED Counter24
6V to 12V Converter24
Yesterday
Thursday, November 23, 2017
12VDC To 120VAC Inverter85
Dual Polarity Power Supply65
Of All Time 12VDC To 120VAC Inverter1,396,426
FM Transmitter925,770

Auto

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Automatic Headlight Brightness Switch 186,553 61 *
Car Alarm Arming Horn Beep Canceller bob 98,743 6 *
Wireless Auto Tachometer 293,876 58

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 130,342 29 *
Parallel (Printer) Port Interface 232,641 71

Light/Laser

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
12VDC Fluorescent Lamp Driver 388,199 62 *
3 Channel Spectrum Analyzer 180,910 20
40W Fluorescent Lamp Inverter Bart Milnes 286,484 60 *
Adjustable Strobe Light 259,000 36
Black Light 220,886 29
Colour (Sound) Organ 243,218 36
Electronic Dice NEW! 147,719 9 *
Fantastic Atom Expander 157,678 25
Flash Slave Trigger 178,673 17 *
Infa-Red Remote Control 575,679 216 *
IR Remote Extender NEW! 87,894 2 *
IR Remote Jammer Carl 220,890 110 *
IR Remote Switch NEW! 117,926 9 *
LASER Transmitter/Receiver 358,625 92
LED Chaser 401,890 83 *
LED Metronome NEW! 77,898 3 *
LED Thermometer 172,371 22 *
Light/Dark Detector 271,346 89 *
Simple Colour Organ 108,213 10 *
Strobe Light 239,834 27 *
TRIAC Light Dimmer 450,456 55

Major Projects

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Computerize Your Room/Home 308,127 122 *
Electromagnetic Levitator NEW! 108,835 15 *

Other

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
7 Segment LED Counter 849,954 214 *
AC Motor Speed Controller 332,724 29 *
Air Flow Detector 215,972 54 *
Digital Keypad Combination Lock 159,778 20
Low Voltage Alarm 189,095 58 *
Pine Racecar Victory Judge 72,848 1 *
Pulse Width Modulation DC Motor Control 604,707 93
Rain Detector 268,486 112 *
Simple Lie Detector 511,633 323
Simple Polarity Tester Dudley LeRoux 124,594 13 *
Simple Servo Controller 180,877 22 *
Simple Touch Switch NEW! 135,451 5 *
Simple Two Speed Contactor DC Motor Controller 172,437 21 *
Stepper Motor Controller 668,651 120 *
Time Delay Relay 505,523 88
Time Delay Relay II jawaharlal@excite.com 200,710 39 *
Touch Switch 252,597 51 *
Video Activated Relay 90,906 8 *
Video Stabilizer/MacroVision Removal Antti Paarlahti 142,154 10 *
Water Detector With Sump/Bilge Pump Controller 116,194 18 *
Wire Loop Alarm Alex Meaden 174,350 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! 262,141 25 *
12VDC To 120VAC Inverter 1,396,426 687
6V to 12V Converter 441,372 121
Automatic 12V Lead Acid Battery Charger 860,452 246
Automatic Load Sensing Power Switch 129,530 15 *
Car Battery Charger 813,561 159 *
Dual Polarity Power Supply 305,784 84 *
Fixed Voltage Power Supply 273,622 52 *
High Current Power Supply 290,799 64 *
High Voltage High Current Power Supply 217,620 35 *
LASER Power Supply 247,877 28
Portable CD Player Adapter For Car 175,297 12 *
Power Supply 678,880 259 *
Solid State Tesla Coil NEW! 112,964 3
Solid State Tesla Coil/High Voltage Generator 380,064 50
Transformerless Power Supply 413,664 117 *
Voltage Inverter 299,516 51 *
Voltage Inverter II 169,770 19 *

Sound/Radio

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
22 Watt Audio Amplifier 538,858 182
3 Watt FM Transmitter Rae XL Tkacik 290,634 81 *
50 Watt Amplifier 454,721 74
8 Note Tune Player 112,163 12 *
8 Watt Audio Amp 322,998 67 *
Aircraft Radio Communications Receiver 227,153 49 *
Crystal Radio 133,009 53 *
Digital Volume Control 291,636 47 *
Electronic Stethoscope 267,333 141 *
FET Audio Mixer 297,809 40
FM Transmitter 925,770 418
Guitar Fuzz Effect 200,714 52 *
Microphone Mixer Anatoly I. Shikhatov 209,517 26 *
Mono To Stereo Synthesizer oRbEq 94,959 18 *
One Tube Regenerative Radio NEW! 99,863 4 *
Op Amp Radio 336,695 80 *
Single Chip AM Radio NEW! 76,751 2 *
Single Chip FM Radio NEW! 128,146 1 *
Sound Level Meter 299,348 51 *
Stereo Tube Amplifier Weslee Kinsler 228,318 15 *
Tone Control 263,266 31
Transistor Organ 158,698 28

Telephone

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Cut Phone Line Detector 134,198 27 *
FM Telephone Bug 198,479 57
Phone Busy Indicator 178,138 24 *
Remote Telephone Ringer 90,373 3 *
Ringing Phone Light Flasher 177,043 33 *
Simple Phone Tap Derek Tombrello 326,236 98 *
Telephone Hold Button 94,504 9
Telephone Recorder 179,129 54 *


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.