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
Tuesday, September 26, 2017
12VDC To 120VAC Inverter45
AC Motor Speed Controller37
Yesterday
Monday, September 25, 2017
12VDC To 120VAC Inverter107
Dual Polarity Power Supply101
Of All Time 12VDC To 120VAC Inverter1,390,175
FM Transmitter922,560

Auto

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Automatic Headlight Brightness Switch 185,487 61 *
Car Alarm Arming Horn Beep Canceller bob 97,918 6 *
Wireless Auto Tachometer 292,638 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 129,317 29 *
Parallel (Printer) Port Interface 231,638 71

Light/Laser

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
12VDC Fluorescent Lamp Driver 386,742 62 *
3 Channel Spectrum Analyzer 179,473 20
40W Fluorescent Lamp Inverter Bart Milnes 285,226 60 *
Adjustable Strobe Light 257,626 36
Black Light 219,748 29
Colour (Sound) Organ 241,926 36
Electronic Dice NEW! 146,849 9 *
Fantastic Atom Expander 156,288 25
Flash Slave Trigger 177,640 17 *
Infa-Red Remote Control 574,181 216 *
IR Remote Extender NEW! 86,827 2 *
IR Remote Jammer Carl 219,774 110 *
IR Remote Switch NEW! 116,757 9 *
LASER Transmitter/Receiver 357,350 92
LED Chaser 400,083 83 *
LED Metronome NEW! 77,160 3 *
LED Thermometer 171,332 22 *
Light/Dark Detector 269,940 89 *
Simple Colour Organ 107,464 10 *
Strobe Light 238,743 27 *
TRIAC Light Dimmer 448,721 55

Major Projects

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Computerize Your Room/Home 306,929 122 *
Electromagnetic Levitator NEW! 107,678 15 *

Other

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
7 Segment LED Counter 847,437 214 *
AC Motor Speed Controller 330,784 29 *
Air Flow Detector 214,800 54 *
Digital Keypad Combination Lock 158,573 20
Low Voltage Alarm 187,731 58 *
Pine Racecar Victory Judge 72,070 1 *
Pulse Width Modulation DC Motor Control 602,761 93
Rain Detector 267,442 112 *
Simple Lie Detector 510,032 323
Simple Polarity Tester Dudley LeRoux 123,470 13 *
Simple Servo Controller 179,523 22 *
Simple Touch Switch NEW! 134,383 5 *
Simple Two Speed Contactor DC Motor Controller 171,408 21 *
Stepper Motor Controller 665,577 120 *
Time Delay Relay 503,560 88
Time Delay Relay II jawaharlal@excite.com 199,540 39 *
Touch Switch 251,236 51 *
Video Activated Relay 89,903 8 *
Video Stabilizer/MacroVision Removal Antti Paarlahti 141,264 10 *
Water Detector With Sump/Bilge Pump Controller 115,001 18 *
Wire Loop Alarm Alex Meaden 173,348 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! 260,513 25 *
12VDC To 120VAC Inverter 1,390,175 687
6V to 12V Converter 438,957 121
Automatic 12V Lead Acid Battery Charger 857,306 246
Automatic Load Sensing Power Switch 128,448 15 *
Car Battery Charger 810,544 159 *
Dual Polarity Power Supply 301,582 84 *
Fixed Voltage Power Supply 272,582 52 *
High Current Power Supply 289,457 64 *
High Voltage High Current Power Supply 216,545 35 *
LASER Power Supply 246,365 28
Portable CD Player Adapter For Car 174,014 12 *
Power Supply 676,308 259 *
Solid State Tesla Coil NEW! 111,692 3
Solid State Tesla Coil/High Voltage Generator 377,921 50
Transformerless Power Supply 412,303 117 *
Voltage Inverter 298,123 51 *
Voltage Inverter II 169,024 19 *

Sound/Radio

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
22 Watt Audio Amplifier 536,760 182
3 Watt FM Transmitter Rae XL Tkacik 289,056 81 *
50 Watt Amplifier 452,673 74
8 Note Tune Player 111,174 12 *
8 Watt Audio Amp 321,218 67 *
Aircraft Radio Communications Receiver 225,555 49 *
Crystal Radio 132,100 53 *
Digital Volume Control 290,152 47 *
Electronic Stethoscope 265,735 141 *
FET Audio Mixer 295,770 40
FM Transmitter 922,560 418
Guitar Fuzz Effect 199,423 52 *
Microphone Mixer Anatoly I. Shikhatov 208,143 26 *
Mono To Stereo Synthesizer oRbEq 93,866 18 *
One Tube Regenerative Radio NEW! 98,725 4 *
Op Amp Radio 334,941 80 *
Single Chip AM Radio NEW! 75,961 2 *
Single Chip FM Radio NEW! 126,847 1 *
Sound Level Meter 297,871 51 *
Stereo Tube Amplifier Weslee Kinsler 227,101 15 *
Tone Control 261,731 31
Transistor Organ 157,625 28

Telephone

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Cut Phone Line Detector 133,557 27 *
FM Telephone Bug 197,581 57
Phone Busy Indicator 176,625 24 *
Remote Telephone Ringer 89,521 3 *
Ringing Phone Light Flasher 175,820 33 *
Simple Phone Tap Derek Tombrello 325,207 98 *
Telephone Hold Button 93,734 9
Telephone Recorder 177,989 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.