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
Monday, December 09, 2019
Mono To Stereo Synthesizer5
Simple Lie Detector4
Yesterday
Sunday, December 08, 2019
12VDC To 120VAC Inverter57
Touch Switch44
Of All Time 12VDC To 120VAC Inverter1,453,234
FM Transmitter960,176

Auto

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Automatic Headlight Brightness Switch 202,257 61 *
Car Alarm Arming Horn Beep Canceller bob 113,378 6 *
Wireless Auto Tachometer 314,244 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 141,449 29 *
Parallel (Printer) Port Interface 254,259 71

Light/Laser

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
12VDC Fluorescent Lamp Driver 410,902 63 *
3 Channel Spectrum Analyzer 197,455 20
40W Fluorescent Lamp Inverter Bart Milnes 303,876 60 *
Adjustable Strobe Light 278,618 36
Black Light 242,043 29
Colour (Sound) Organ 261,216 36
Electronic Dice NEW! 163,422 10 *
Fantastic Atom Expander 175,758 25
Flash Slave Trigger 193,960 18 *
Infa-Red Remote Control 601,142 216 *
IR Remote Extender NEW! 104,843 2 *
IR Remote Jammer Carl 237,517 110 *
IR Remote Switch NEW! 133,921 9 *
LASER Transmitter/Receiver 379,576 92
LED Chaser 420,175 83 *
LED Metronome NEW! 86,864 3 *
LED Thermometer 186,691 22 *
Light/Dark Detector 284,660 90 *
Simple Colour Organ 119,724 10 *
Strobe Light 253,339 27 *
TRIAC Light Dimmer 472,299 55

Major Projects

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Computerize Your Room/Home 327,558 122 *
Electromagnetic Levitator NEW! 123,679 15 *

Other

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
7 Segment LED Counter 884,114 214 *
AC Motor Speed Controller 358,600 29 *
Air Flow Detector 230,751 54 *
Digital Keypad Combination Lock 176,403 20
Low Voltage Alarm 205,052 58 *
Pine Racecar Victory Judge 85,721 1 *
Pulse Width Modulation DC Motor Control 622,958 94
Rain Detector 284,146 112 *
Simple Lie Detector 535,422 323
Simple Polarity Tester Dudley LeRoux 140,372 13 *
Simple Servo Controller 199,270 22 *
Simple Touch Switch NEW! 149,381 5 *
Simple Two Speed Contactor DC Motor Controller 184,467 21 *
Stepper Motor Controller 710,339 120 *
Time Delay Relay 529,076 88
Time Delay Relay II jawaharlal@excite.com 218,642 39 *
Touch Switch 267,580 51 *
Video Activated Relay 103,359 8 *
Video Stabilizer/MacroVision Removal Antti Paarlahti 158,187 10 *
Water Detector With Sump/Bilge Pump Controller 129,380 18 *
Wire Loop Alarm Alex Meaden 186,294 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! 286,933 25 *
12VDC To 120VAC Inverter 1,453,234 689
6V to 12V Converter 480,596 121
Automatic 12V Lead Acid Battery Charger 897,471 247
Automatic Load Sensing Power Switch 143,806 16 *
Car Battery Charger 849,057 159 *
Dual Polarity Power Supply 351,089 84 *
Fixed Voltage Power Supply 287,710 52 *
High Current Power Supply 309,755 65 *
High Voltage High Current Power Supply 230,917 35 *
LASER Power Supply 269,927 28
Portable CD Player Adapter For Car 189,295 12 *
Power Supply 707,540 259 *
Solid State Tesla Coil NEW! 127,231 4
Solid State Tesla Coil/High Voltage Generator 408,716 50
Transformerless Power Supply 437,048 117 *
Voltage Inverter 313,099 51 *
Voltage Inverter II 180,803 19 *

Sound/Radio

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
22 Watt Audio Amplifier 558,842 182
3 Watt FM Transmitter Rae XL Tkacik 307,530 82 *
50 Watt Amplifier 479,710 74
8 Note Tune Player 122,510 12 *
8 Watt Audio Amp 344,334 67 *
Aircraft Radio Communications Receiver 247,927 49 *
Crystal Radio 145,172 53 *
Digital Volume Control 308,812 47 *
Electronic Stethoscope 286,396 141 *
FET Audio Mixer 317,126 41
FM Transmitter 960,176 419
Guitar Fuzz Effect 220,845 52 *
Microphone Mixer Anatoly I. Shikhatov 227,625 26 *
Mono To Stereo Synthesizer oRbEq 110,563 18 *
One Tube Regenerative Radio NEW! 116,058 4 *
Op Amp Radio 357,343 80 *
Single Chip AM Radio NEW! 86,137 2 *
Single Chip FM Radio NEW! 147,686 1 *
Sound Level Meter 318,106 51 *
Stereo Tube Amplifier Weslee Kinsler 245,378 15 *
Tone Control 282,781 31
Transistor Organ 175,012 28

Telephone

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Cut Phone Line Detector 144,803 27 *
FM Telephone Bug 216,559 57
Phone Busy Indicator 195,454 24 *
Remote Telephone Ringer 99,974 3 *
Ringing Phone Light Flasher 192,143 35 *
Simple Phone Tap Derek Tombrello 344,221 98 *
Telephone Hold Button 109,738 10
Telephone Recorder 193,593 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.