Electronic Circuits

Home > Electronics > Electronic Circuits Buy Me A Coffee

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, February 28, 2025		 Voltage Inverter14
Stepper Motor Controller7
Yesterday
Thursday, February 27, 2025		 Stepper Motor Controller46
Stepper Motor Controller46
Of All Time 12VDC To 120VAC Inverter1,543,362
FM Transmitter1,018,442

Auto

 Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Automatic Headlight Brightness Switch 230,227 61 *
Car Alarm Arming Horn Beep Canceller bob 139,548 6 *
Wireless Auto Tachometer 346,868 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 162,895 29 *
Parallel (Printer) Port Interface 291,343 71

Light/Laser

 Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
12VDC Fluorescent Lamp Driver 452,286 63 *
3 Channel Spectrum Analyzer 226,366 20
40W Fluorescent Lamp Inverter Bart Milnes 333,691 60 *
Adjustable Strobe Light 313,479 36
Black Light 286,708 29
Colour (Sound) Organ 295,203 36
Electronic Dice NEW! 192,788 10 *
Fantastic Atom Expander 206,154 25
Flash Slave Trigger 225,204 18 *
Infa-Red Remote Control 641,925 216 *
IR Remote Extender NEW! 136,499 3 *
IR Remote Jammer Carl 270,662 110 *
IR Remote Switch NEW! 160,837 9 *
LASER Transmitter/Receiver 422,101 92
LED Chaser 451,171 83 *
LED Metronome NEW! 102,877 3 *
LED Thermometer 210,273 22 *
Light/Dark Detector 309,472 90 *
Simple Colour Organ 140,556 11 *
Strobe Light 279,313 27 *
TRIAC Light Dimmer 558,343 55

Major Projects

 Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Computerize Your Room/Home 364,644 122 *
Electromagnetic Levitator NEW! 147,832 15 *

Other

 Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
7 Segment LED Counter 928,483 214 *
AC Motor Speed Controller 397,762 29 *
Air Flow Detector 255,508 54 *
Digital Keypad Combination Lock 205,483 20
Low Voltage Alarm 232,924 58 *
Pine Racecar Victory Judge 105,763 1 *
Pulse Width Modulation DC Motor Control 660,145 94
Rain Detector 308,838 112 *
Simple Lie Detector 569,649 323
Simple Polarity Tester Dudley LeRoux 169,034 13 *
Simple Servo Controller 225,447 22 *
Simple Touch Switch NEW! 173,680 6 *
Simple Two Speed Contactor DC Motor Controller 208,998 21 *
Stepper Motor Controller 755,256 120 *
Time Delay Relay 560,410 88
Time Delay Relay II jawaharlal@excite.com 251,440 39 *
Touch Switch 293,890 51 *
Video Activated Relay 125,163 8 *
Video Stabilizer/MacroVision Removal Antti Paarlahti 185,543 10 *
Water Detector With Sump/Bilge Pump Controller 156,675 18 *
Wire Loop Alarm Alex Meaden 209,160 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! 322,709 25 *
12VDC To 120VAC Inverter 1,543,362 691
6V to 12V Converter 533,481 121
Automatic 12V Lead Acid Battery Charger 943,280 248
Automatic Load Sensing Power Switch 171,365 16 *
Car Battery Charger 888,718 159 *
Dual Polarity Power Supply 375,891 84 *
Fixed Voltage Power Supply 315,938 52 *
High Current Power Supply 345,432 66 *
High Voltage High Current Power Supply 268,331 35 *
LASER Power Supply 301,085 28
Portable CD Player Adapter For Car 216,052 12 *
Power Supply 744,722 259 *
Solid State Tesla Coil NEW! 151,173 4
Solid State Tesla Coil/High Voltage Generator 450,542 51
Transformerless Power Supply 468,051 117 *
Voltage Inverter 346,034 51 *
Voltage Inverter II 207,808 19 *

Sound/Radio

 Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
22 Watt Audio Amplifier 590,214 182
3 Watt FM Transmitter Rae XL Tkacik 341,884 83 *
50 Watt Amplifier 513,715 74
8 Note Tune Player 144,385 12 *
8 Watt Audio Amp 379,277 67 *
Aircraft Radio Communications Receiver 284,521 50 *
Crystal Radio 163,541 53 *
Digital Volume Control 343,493 47 *
Electronic Stethoscope 326,841 142 *
FET Audio Mixer 348,442 41
FM Transmitter 1,018,442 420
Guitar Fuzz Effect 252,479 54 *
Microphone Mixer Anatoly I. Shikhatov 255,080 26 *
Mono To Stereo Synthesizer oRbEq 138,538 18 *
One Tube Regenerative Radio NEW! 151,173 4 *
Op Amp Radio 395,555 80 *
Single Chip AM Radio NEW! 103,844 4 *
Single Chip FM Radio NEW! 177,565 1 *
Sound Level Meter 346,643 51 *
Stereo Tube Amplifier Weslee Kinsler 272,908 15 *
Tone Control 314,595 31
Transistor Organ 204,490 29

Telephone

 Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Cut Phone Line Detector 167,009 27 *
FM Telephone Bug 238,544 57
Phone Busy Indicator 217,460 24 *
Remote Telephone Ringer 121,481 3 *
Ringing Phone Light Flasher 223,203 35 *
Simple Phone Tap Derek Tombrello 387,390 98 *
Telephone Hold Button 132,507 10
Telephone Recorder 220,352 55 *

Back To Electronics Page | Mail Me | Search | Buy Me A Coffee

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.