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
Wednesday, March 26, 2025		 Voltage Inverter10
12VDC To 120VAC Inverter7
Yesterday
Tuesday, March 25, 2025		 12VDC To 120VAC Inverter62
12VDC To 120VAC Inverter62
Of All Time 12VDC To 120VAC Inverter1,544,242
FM Transmitter1,019,133

Auto

 Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Automatic Headlight Brightness Switch 230,469 61 *
Car Alarm Arming Horn Beep Canceller bob 139,748 6 *
Wireless Auto Tachometer 347,161 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 163,128 29 *
Parallel (Printer) Port Interface 291,733 71

Light/Laser

 Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
12VDC Fluorescent Lamp Driver 452,653 63 *
3 Channel Spectrum Analyzer 226,739 20
40W Fluorescent Lamp Inverter Bart Milnes 333,984 60 *
Adjustable Strobe Light 313,816 36
Black Light 287,171 29
Colour (Sound) Organ 295,561 36
Electronic Dice NEW! 193,082 10 *
Fantastic Atom Expander 206,394 25
Flash Slave Trigger 225,524 18 *
Infa-Red Remote Control 642,290 216 *
IR Remote Extender NEW! 136,804 3 *
IR Remote Jammer Carl 271,022 110 *
IR Remote Switch NEW! 161,127 9 *
LASER Transmitter/Receiver 422,472 92
LED Chaser 451,560 83 *
LED Metronome NEW! 103,135 3 *
LED Thermometer 210,547 22 *
Light/Dark Detector 309,764 90 *
Simple Colour Organ 140,794 11 *
Strobe Light 279,589 27 *
TRIAC Light Dimmer 558,710 55

Major Projects

 Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Computerize Your Room/Home 365,004 122 *
Electromagnetic Levitator NEW! 148,088 15 *

Other

 Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
7 Segment LED Counter 929,002 214 *
AC Motor Speed Controller 398,239 29 *
Air Flow Detector 255,820 54 *
Digital Keypad Combination Lock 205,760 20
Low Voltage Alarm 233,228 58 *
Pine Racecar Victory Judge 106,013 1 *
Pulse Width Modulation DC Motor Control 660,538 94
Rain Detector 309,155 112 *
Simple Lie Detector 570,002 323
Simple Polarity Tester Dudley LeRoux 169,303 13 *
Simple Servo Controller 225,751 22 *
Simple Touch Switch NEW! 173,992 6 *
Simple Two Speed Contactor DC Motor Controller 209,319 21 *
Stepper Motor Controller 755,895 120 *
Time Delay Relay 560,791 88
Time Delay Relay II jawaharlal@excite.com 251,731 39 *
Touch Switch 294,210 51 *
Video Activated Relay 125,423 8 *
Video Stabilizer/MacroVision Removal Antti Paarlahti 185,834 10 *
Water Detector With Sump/Bilge Pump Controller 156,929 18 *
Wire Loop Alarm Alex Meaden 209,425 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! 323,251 25 *
12VDC To 120VAC Inverter 1,544,242 691
6V to 12V Converter 533,938 121
Automatic 12V Lead Acid Battery Charger 943,738 248
Automatic Load Sensing Power Switch 171,663 16 *
Car Battery Charger 889,109 159 *
Dual Polarity Power Supply 376,245 84 *
Fixed Voltage Power Supply 316,218 52 *
High Current Power Supply 345,821 66 *
High Voltage High Current Power Supply 268,640 35 *
LASER Power Supply 301,438 28
Portable CD Player Adapter For Car 216,350 12 *
Power Supply 745,114 259 *
Solid State Tesla Coil NEW! 151,535 4
Solid State Tesla Coil/High Voltage Generator 451,017 51
Transformerless Power Supply 468,370 117 *
Voltage Inverter 346,565 51 *
Voltage Inverter II 208,135 19 *

Sound/Radio

 Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
22 Watt Audio Amplifier 590,534 182
3 Watt FM Transmitter Rae XL Tkacik 342,399 83 *
50 Watt Amplifier 514,081 74
8 Note Tune Player 144,622 12 *
8 Watt Audio Amp 379,668 67 *
Aircraft Radio Communications Receiver 285,015 50 *
Crystal Radio 163,913 53 *
Digital Volume Control 343,832 47 *
Electronic Stethoscope 327,208 142 *
FET Audio Mixer 348,814 41
FM Transmitter 1,019,133 420
Guitar Fuzz Effect 252,918 54 *
Microphone Mixer Anatoly I. Shikhatov 255,413 26 *
Mono To Stereo Synthesizer oRbEq 138,859 18 *
One Tube Regenerative Radio NEW! 151,853 4 *
Op Amp Radio 396,030 80 *
Single Chip AM Radio NEW! 104,128 4 *
Single Chip FM Radio NEW! 177,949 1 *
Sound Level Meter 346,983 51 *
Stereo Tube Amplifier Weslee Kinsler 273,284 15 *
Tone Control 314,939 31
Transistor Organ 204,854 29

Telephone

 Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Cut Phone Line Detector 167,239 27 *
FM Telephone Bug 238,812 57
Phone Busy Indicator 217,757 24 *
Remote Telephone Ringer 121,704 3 *
Ringing Phone Light Flasher 223,572 35 *
Simple Phone Tap Derek Tombrello 387,691 98 *
Telephone Hold Button 132,766 10
Telephone Recorder 220,601 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.