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
Wednesday, December 02, 2020
Computerize Your Room/Home7
8 Note Tune Player7
Yesterday
Tuesday, December 01, 2020
12VDC To 120VAC Inverter36
Car Battery Charger24
Of All Time 12VDC To 120VAC Inverter1,474,903
FM Transmitter973,737

Auto

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Automatic Headlight Brightness Switch 212,845 61 *
Car Alarm Arming Horn Beep Canceller bob 123,845 6 *
Wireless Auto Tachometer 326,385 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 148,713 29 *
Parallel (Printer) Port Interface 266,953 71

Light/Laser

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
12VDC Fluorescent Lamp Driver 426,922 63 *
3 Channel Spectrum Analyzer 206,245 20
40W Fluorescent Lamp Inverter Bart Milnes 314,956 60 *
Adjustable Strobe Light 291,111 36
Black Light 256,383 29
Colour (Sound) Organ 273,308 36
Electronic Dice NEW! 174,368 10 *
Fantastic Atom Expander 187,546 25
Flash Slave Trigger 205,124 18 *
Infa-Red Remote Control 614,997 216 *
IR Remote Extender NEW! 116,857 2 *
IR Remote Jammer Carl 246,903 110 *
IR Remote Switch NEW! 144,711 9 *
LASER Transmitter/Receiver 392,764 92
LED Chaser 428,981 83 *
LED Metronome NEW! 90,690 3 *
LED Thermometer 194,699 22 *
Light/Dark Detector 293,299 90 *
Simple Colour Organ 126,834 10 *
Strobe Light 261,312 27 *
TRIAC Light Dimmer 534,461 55

Major Projects

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Computerize Your Room/Home 343,181 122 *
Electromagnetic Levitator NEW! 131,817 15 *

Other

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
7 Segment LED Counter 899,426 214 *
AC Motor Speed Controller 369,065 29 *
Air Flow Detector 238,956 54 *
Digital Keypad Combination Lock 184,316 20
Low Voltage Alarm 213,814 58 *
Pine Racecar Victory Judge 92,594 1 *
Pulse Width Modulation DC Motor Control 632,342 94
Rain Detector 291,806 112 *
Simple Lie Detector 544,864 323
Simple Polarity Tester Dudley LeRoux 151,367 13 *
Simple Servo Controller 207,252 22 *
Simple Touch Switch NEW! 156,947 5 *
Simple Two Speed Contactor DC Motor Controller 192,271 21 *
Stepper Motor Controller 722,495 120 *
Time Delay Relay 540,542 88
Time Delay Relay II jawaharlal@excite.com 229,725 39 *
Touch Switch 276,070 51 *
Video Activated Relay 110,436 8 *
Video Stabilizer/MacroVision Removal Antti Paarlahti 166,552 10 *
Water Detector With Sump/Bilge Pump Controller 139,448 18 *
Wire Loop Alarm Alex Meaden 193,715 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! 296,970 25 *
12VDC To 120VAC Inverter 1,474,903 689
6V to 12V Converter 505,037 121
Automatic 12V Lead Acid Battery Charger 911,872 248
Automatic Load Sensing Power Switch 152,576 16 *
Car Battery Charger 862,441 159 *
Dual Polarity Power Supply 356,741 84 *
Fixed Voltage Power Supply 295,886 52 *
High Current Power Supply 320,358 66 *
High Voltage High Current Power Supply 239,117 35 *
LASER Power Supply 279,254 28
Portable CD Player Adapter For Car 197,940 12 *
Power Supply 718,735 259 *
Solid State Tesla Coil NEW! 132,661 4
Solid State Tesla Coil/High Voltage Generator 421,330 50
Transformerless Power Supply 446,782 117 *
Voltage Inverter 319,680 51 *
Voltage Inverter II 188,349 19 *

Sound/Radio

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
22 Watt Audio Amplifier 568,991 182
3 Watt FM Transmitter Rae XL Tkacik 317,363 83 *
50 Watt Amplifier 490,083 74
8 Note Tune Player 129,646 12 *
8 Watt Audio Amp 354,634 67 *
Aircraft Radio Communications Receiver 260,407 49 *
Crystal Radio 149,410 53 *
Digital Volume Control 317,419 47 *
Electronic Stethoscope 296,546 141 *
FET Audio Mixer 326,677 41
FM Transmitter 973,737 420
Guitar Fuzz Effect 229,892 52 *
Microphone Mixer Anatoly I. Shikhatov 236,115 26 *
Mono To Stereo Synthesizer oRbEq 119,093 18 *
One Tube Regenerative Radio NEW! 121,792 4 *
Op Amp Radio 368,189 80 *
Single Chip AM Radio NEW! 89,940 2 *
Single Chip FM Radio NEW! 156,614 1 *
Sound Level Meter 326,572 51 *
Stereo Tube Amplifier Weslee Kinsler 253,553 15 *
Tone Control 292,308 31
Transistor Organ 183,622 28

Telephone

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Cut Phone Line Detector 152,195 27 *
FM Telephone Bug 224,243 57
Phone Busy Indicator 202,435 24 *
Remote Telephone Ringer 107,475 3 *
Ringing Phone Light Flasher 200,972 35 *
Simple Phone Tap Derek Tombrello 371,351 98 *
Telephone Hold Button 117,116 10
Telephone Recorder 203,819 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.