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
Sunday, June 25, 2017
12VDC To 120VAC Inverter38
Automatic 12V Lead Acid Battery Charger30
Yesterday
Saturday, June 24, 2017
12VDC To 120VAC Inverter96
Automatic 12V Lead Acid Battery Charger46
Of All Time 12VDC To 120VAC Inverter1,381,373
FM Transmitter918,611

Auto

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Automatic Headlight Brightness Switch 183,828 61 *
Car Alarm Arming Horn Beep Canceller bob 96,388 6 *
Wireless Auto Tachometer 290,716 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 127,674 29 *
Parallel (Printer) Port Interface 230,009 71

Light/Laser

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
12VDC Fluorescent Lamp Driver 384,379 62 *
3 Channel Spectrum Analyzer 177,391 20
40W Fluorescent Lamp Inverter Bart Milnes 283,275 60 *
Adjustable Strobe Light 255,228 36
Black Light 217,663 29
Colour (Sound) Organ 239,999 36
Electronic Dice NEW! 145,523 9 *
Fantastic Atom Expander 154,379 25
Flash Slave Trigger 175,983 17 *
Infa-Red Remote Control 572,151 216 *
IR Remote Extender NEW! 85,265 2 *
IR Remote Jammer Carl 217,896 110 *
IR Remote Switch NEW! 115,417 9 *
LASER Transmitter/Receiver 355,415 92
LED Chaser 398,006 83 *
LED Metronome NEW! 75,965 3 *
LED Thermometer 169,426 22 *
Light/Dark Detector 267,754 89 *
Simple Colour Organ 106,060 10 *
Strobe Light 237,000 27 *
TRIAC Light Dimmer 445,951 55

Major Projects

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Computerize Your Room/Home 305,349 122 *
Electromagnetic Levitator NEW! 106,022 15 *

Other

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
7 Segment LED Counter 844,177 214 *
AC Motor Speed Controller 327,784 29 *
Air Flow Detector 213,028 54 *
Digital Keypad Combination Lock 157,053 20
Low Voltage Alarm 185,293 58 *
Pine Racecar Victory Judge 70,622 1 *
Pulse Width Modulation DC Motor Control 600,026 93
Rain Detector 265,571 112 *
Simple Lie Detector 507,680 323
Simple Polarity Tester Dudley LeRoux 121,835 13 *
Simple Servo Controller 177,596 22 *
Simple Touch Switch NEW! 132,963 5 *
Simple Two Speed Contactor DC Motor Controller 169,779 21 *
Stepper Motor Controller 661,622 120 *
Time Delay Relay 500,668 88
Time Delay Relay II jawaharlal@excite.com 197,776 39 *
Touch Switch 249,079 51 *
Video Activated Relay 88,471 8 *
Video Stabilizer/MacroVision Removal Antti Paarlahti 139,896 10 *
Water Detector With Sump/Bilge Pump Controller 113,745 18 *
Wire Loop Alarm Alex Meaden 171,349 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! 257,846 25 *
12VDC To 120VAC Inverter 1,381,373 687
6V to 12V Converter 435,266 121
Automatic 12V Lead Acid Battery Charger 851,981 246
Automatic Load Sensing Power Switch 126,883 15 *
Car Battery Charger 806,417 159 *
Dual Polarity Power Supply 294,494 84 *
Fixed Voltage Power Supply 270,626 52 *
High Current Power Supply 287,278 64 *
High Voltage High Current Power Supply 214,957 35 *
LASER Power Supply 244,247 28
Portable CD Player Adapter For Car 171,933 12 *
Power Supply 672,954 259 *
Solid State Tesla Coil NEW! 110,082 3
Solid State Tesla Coil/High Voltage Generator 374,656 50
Transformerless Power Supply 409,869 117 *
Voltage Inverter 295,826 51 *
Voltage Inverter II 167,928 19 *

Sound/Radio

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
22 Watt Audio Amplifier 533,783 182
3 Watt FM Transmitter Rae XL Tkacik 286,833 81 *
50 Watt Amplifier 449,581 74
8 Note Tune Player 109,778 12 *
8 Watt Audio Amp 318,406 67 *
Aircraft Radio Communications Receiver 223,092 49 *
Crystal Radio 130,539 53 *
Digital Volume Control 287,835 47 *
Electronic Stethoscope 263,263 141 *
FET Audio Mixer 292,986 40
FM Transmitter 918,611 418
Guitar Fuzz Effect 197,250 52 *
Microphone Mixer Anatoly I. Shikhatov 206,074 26 *
Mono To Stereo Synthesizer oRbEq 92,422 18 *
One Tube Regenerative Radio NEW! 96,874 4 *
Op Amp Radio 332,105 80 *
Single Chip AM Radio NEW! 74,688 2 *
Single Chip FM Radio NEW! 124,914 1 *
Sound Level Meter 296,152 51 *
Stereo Tube Amplifier Weslee Kinsler 225,188 15 *
Tone Control 258,655 31
Transistor Organ 155,875 28

Telephone

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Cut Phone Line Detector 132,258 27 *
FM Telephone Bug 195,878 57
Phone Busy Indicator 174,304 24 *
Remote Telephone Ringer 88,350 3 *
Ringing Phone Light Flasher 173,734 33 *
Simple Phone Tap Derek Tombrello 323,532 98 *
Telephone Hold Button 92,354 9
Telephone Recorder 176,438 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.