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
Thursday, October 24, 2024		 FM Transmitter21
Parallel (Printer) Port Interface20
Yesterday
Wednesday, October 23, 2024		 Ringing Phone Light Flasher41
12VDC To 120VAC Inverter37
Of All Time 12VDC To 120VAC Inverter1,538,811
FM Transmitter1,015,202

Auto

 Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Automatic Headlight Brightness Switch 229,115 61 *
Car Alarm Arming Horn Beep Canceller bob 138,609 6 *
Wireless Auto Tachometer 345,644 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 161,868 29 *
Parallel (Printer) Port Interface 289,681 71

Light/Laser

 Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
12VDC Fluorescent Lamp Driver 450,693 63 *
3 Channel Spectrum Analyzer 224,800 20
40W Fluorescent Lamp Inverter Bart Milnes 332,452 60 *
Adjustable Strobe Light 311,979 36
Black Light 284,513 29
Colour (Sound) Organ 293,599 36
Electronic Dice NEW! 191,529 10 *
Fantastic Atom Expander 205,149 25
Flash Slave Trigger 223,961 18 *
Infa-Red Remote Control 640,395 216 *
IR Remote Extender NEW! 135,189 3 *
IR Remote Jammer Carl 269,117 110 *
IR Remote Switch NEW! 159,782 9 *
LASER Transmitter/Receiver 420,394 92
LED Chaser 449,258 83 *
LED Metronome NEW! 101,775 3 *
LED Thermometer 209,157 22 *
Light/Dark Detector 308,304 90 *
Simple Colour Organ 139,534 11 *
Strobe Light 278,085 27 *
TRIAC Light Dimmer 556,501 55

Major Projects

 Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Computerize Your Room/Home 363,231 122 *
Electromagnetic Levitator NEW! 146,637 15 *

Other

 Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
7 Segment LED Counter 926,261 214 *
AC Motor Speed Controller 395,542 29 *
Air Flow Detector 254,241 54 *
Digital Keypad Combination Lock 204,398 20
Low Voltage Alarm 231,733 58 *
Pine Racecar Victory Judge 104,766 1 *
Pulse Width Modulation DC Motor Control 658,343 94
Rain Detector 307,434 112 *
Simple Lie Detector 567,945 323
Simple Polarity Tester Dudley LeRoux 167,871 13 *
Simple Servo Controller 224,199 22 *
Simple Touch Switch NEW! 172,374 6 *
Simple Two Speed Contactor DC Motor Controller 207,723 21 *
Stepper Motor Controller 751,759 120 *
Time Delay Relay 558,798 88
Time Delay Relay II jawaharlal@excite.com 250,070 39 *
Touch Switch 292,488 51 *
Video Activated Relay 124,105 8 *
Video Stabilizer/MacroVision Removal Antti Paarlahti 184,248 10 *
Water Detector With Sump/Bilge Pump Controller 155,450 18 *
Wire Loop Alarm Alex Meaden 207,970 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! 320,195 25 *
12VDC To 120VAC Inverter 1,538,811 691
6V to 12V Converter 531,468 121
Automatic 12V Lead Acid Battery Charger 941,056 248
Automatic Load Sensing Power Switch 170,144 16 *
Car Battery Charger 886,800 159 *
Dual Polarity Power Supply 374,350 84 *
Fixed Voltage Power Supply 314,402 52 *
High Current Power Supply 343,140 66 *
High Voltage High Current Power Supply 266,870 35 *
LASER Power Supply 299,371 28
Portable CD Player Adapter For Car 214,779 12 *
Power Supply 742,893 259 *
Solid State Tesla Coil NEW! 149,519 4
Solid State Tesla Coil/High Voltage Generator 448,410 51
Transformerless Power Supply 466,591 117 *
Voltage Inverter 343,513 51 *
Voltage Inverter II 206,315 19 *

Sound/Radio

 Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
22 Watt Audio Amplifier 588,634 182
3 Watt FM Transmitter Rae XL Tkacik 339,501 83 *
50 Watt Amplifier 511,734 74
8 Note Tune Player 143,241 12 *
8 Watt Audio Amp 377,328 67 *
Aircraft Radio Communications Receiver 282,620 49 *
Crystal Radio 161,842 53 *
Digital Volume Control 341,868 47 *
Electronic Stethoscope 324,910 142 *
FET Audio Mixer 346,749 41
FM Transmitter 1,015,202 420
Guitar Fuzz Effect 250,898 54 *
Microphone Mixer Anatoly I. Shikhatov 253,661 26 *
Mono To Stereo Synthesizer oRbEq 137,040 18 *
One Tube Regenerative Radio NEW! 147,192 4 *
Op Amp Radio 393,370 80 *
Single Chip AM Radio NEW! 102,523 3 *
Single Chip FM Radio NEW! 175,793 1 *
Sound Level Meter 345,102 51 *
Stereo Tube Amplifier Weslee Kinsler 271,388 15 *
Tone Control 312,989 31
Transistor Organ 202,914 28

Telephone

 Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Cut Phone Line Detector 165,960 27 *
FM Telephone Bug 237,532 57
Phone Busy Indicator 216,301 24 *
Remote Telephone Ringer 120,522 3 *
Ringing Phone Light Flasher 221,698 35 *
Simple Phone Tap Derek Tombrello 386,192 98 *
Telephone Hold Button 131,419 10
Telephone Recorder 219,117 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.