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
Tuesday, May 24, 2016
12VDC To 120VAC Inverter107
Automatic 12V Lead Acid Battery Charger71
Yesterday
Monday, May 23, 2016
12VDC To 120VAC Inverter124
FM Transmitter78
Of All Time 12VDC To 120VAC Inverter1,342,088
FM Transmitter897,890

Auto

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Automatic Headlight Brightness Switch 178,285 61 *
Car Alarm Arming Horn Beep Canceller bob 92,270 6 *
Wireless Auto Tachometer 283,731 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 122,060 29 *
Parallel (Printer) Port Interface 224,021 71

Light/Laser

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
12VDC Fluorescent Lamp Driver 373,543 62 *
3 Channel Spectrum Analyzer 168,127 20
40W Fluorescent Lamp Inverter Bart Milnes 275,148 60 *
Adjustable Strobe Light 246,082 36
Black Light 209,137 29
Colour (Sound) Organ 231,804 35
Electronic Dice NEW! 137,473 8 *
Fantastic Atom Expander 146,757 25
Flash Slave Trigger 169,527 17 *
Infa-Red Remote Control 560,451 216 *
IR Remote Extender NEW! 78,550 2 *
IR Remote Jammer Carl 209,758 110 *
IR Remote Switch NEW! 109,453 9 *
LASER Transmitter/Receiver 344,061 91
LED Chaser 388,497 83 *
LED Metronome NEW! 70,716 3 *
LED Thermometer 163,312 22 *
Light/Dark Detector 254,655 89 *
Simple Colour Organ 100,898 10 *
Strobe Light 230,377 27 *
TRIAC Light Dimmer 434,524 55

Major Projects

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Computerize Your Room/Home 298,678 122 *
Electromagnetic Levitator NEW! 98,448 15 *

Other

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
7 Segment LED Counter 825,804 214 *
AC Motor Speed Controller 313,143 29 *
Air Flow Detector 204,589 54 *
Digital Keypad Combination Lock 150,780 20
Low Voltage Alarm 176,265 58 *
Pine Racecar Victory Judge 66,164 1 *
Pulse Width Modulation DC Motor Control 585,897 93
Rain Detector 257,563 112 *
Simple Lie Detector 495,521 323
Simple Polarity Tester Dudley LeRoux 114,668 13 *
Simple Servo Controller 170,374 22 *
Simple Touch Switch NEW! 125,853 5 *
Simple Two Speed Contactor DC Motor Controller 163,251 21 *
Stepper Motor Controller 644,246 120 *
Time Delay Relay 485,138 86
Time Delay Relay II jawaharlal@excite.com 190,089 39 *
Touch Switch 241,964 51 *
Video Activated Relay 82,664 8 *
Video Stabilizer/MacroVision Removal Antti Paarlahti 133,236 10 *
Water Detector With Sump/Bilge Pump Controller 109,157 18 *
Wire Loop Alarm Alex Meaden 164,766 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! 242,485 25 *
12VDC To 120VAC Inverter 1,342,088 686
6V to 12V Converter 418,925 121
Automatic 12V Lead Acid Battery Charger 823,250 243
Automatic Load Sensing Power Switch 119,695 15 *
Car Battery Charger 787,685 159 *
Dual Polarity Power Supply 281,977 84 *
Fixed Voltage Power Supply 261,730 52 *
High Current Power Supply 276,873 64 *
High Voltage High Current Power Supply 207,166 35 *
LASER Power Supply 233,790 28
Portable CD Player Adapter For Car 163,283 12 *
Power Supply 654,509 259 *
Solid State Tesla Coil NEW! 102,940 3
Solid State Tesla Coil/High Voltage Generator 358,247 49
Transformerless Power Supply 398,344 116 *
Voltage Inverter 285,275 51 *
Voltage Inverter II 162,948 19 *

Sound/Radio

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
22 Watt Audio Amplifier 520,335 182
3 Watt FM Transmitter Rae XL Tkacik 276,891 81 *
50 Watt Amplifier 435,807 74
8 Note Tune Player 104,155 12 *
8 Watt Audio Amp 306,567 67 *
Aircraft Radio Communications Receiver 212,932 49 *
Crystal Radio 124,433 53 *
Digital Volume Control 278,793 46 *
Electronic Stethoscope 252,019 141 *
FET Audio Mixer 282,300 40
FM Transmitter 897,890 418
Guitar Fuzz Effect 188,376 52 *
Microphone Mixer Anatoly I. Shikhatov 196,802 25 *
Mono To Stereo Synthesizer oRbEq 86,525 17 *
One Tube Regenerative Radio NEW! 88,476 4 *
Op Amp Radio 320,283 80 *
Single Chip AM Radio NEW! 69,120 2 *
Single Chip FM Radio NEW! 115,803 0 *
Sound Level Meter 287,735 51 *
Stereo Tube Amplifier Weslee Kinsler 218,422 15 *
Tone Control 249,137 31
Transistor Organ 148,718 28

Telephone

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Cut Phone Line Detector 127,470 27 *
FM Telephone Bug 190,108 57
Phone Busy Indicator 162,012 24 *
Remote Telephone Ringer 84,102 3 *
Ringing Phone Light Flasher 165,296 33 *
Simple Phone Tap Derek Tombrello 316,846 98 *
Telephone Hold Button 85,785 9
Telephone Recorder 170,286 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.