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
Monday, November 29, 2021
Voltage Inverter19
7 Segment LED Counter17
Yesterday
Sunday, November 28, 2021
12VDC To 120VAC Inverter31
FM Transmitter29
Of All Time 12VDC To 120VAC Inverter1,494,237
FM Transmitter986,672

Auto

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Automatic Headlight Brightness Switch 219,070 61 *
Car Alarm Arming Horn Beep Canceller bob 129,579 6 *
Wireless Auto Tachometer 333,612 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 153,316 29 *
Parallel (Printer) Port Interface 274,784 71

Light/Laser

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
12VDC Fluorescent Lamp Driver 436,547 63 *
3 Channel Spectrum Analyzer 212,048 20
40W Fluorescent Lamp Inverter Bart Milnes 321,552 60 *
Adjustable Strobe Light 298,619 36
Black Light 265,769 29
Colour (Sound) Organ 280,488 36
Electronic Dice NEW! 180,750 10 *
Fantastic Atom Expander 194,842 25
Flash Slave Trigger 211,813 18 *
Infa-Red Remote Control 623,426 216 *
IR Remote Extender NEW! 123,708 2 *
IR Remote Jammer Carl 254,517 110 *
IR Remote Switch NEW! 150,523 9 *
LASER Transmitter/Receiver 401,852 92
LED Chaser 434,976 83 *
LED Metronome NEW! 93,427 3 *
LED Thermometer 199,537 22 *
Light/Dark Detector 298,633 90 *
Simple Colour Organ 131,035 10 *
Strobe Light 266,688 27 *
TRIAC Light Dimmer 540,688 55

Major Projects

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Computerize Your Room/Home 350,334 122 *
Electromagnetic Levitator NEW! 136,772 15 *

Other

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
7 Segment LED Counter 909,642 214 *
AC Motor Speed Controller 376,614 29 *
Air Flow Detector 243,948 54 *
Digital Keypad Combination Lock 189,258 20
Low Voltage Alarm 220,007 58 *
Pine Racecar Victory Judge 96,728 1 *
Pulse Width Modulation DC Motor Control 638,542 94
Rain Detector 296,764 112 *
Simple Lie Detector 551,214 323
Simple Polarity Tester Dudley LeRoux 157,609 13 *
Simple Servo Controller 213,033 22 *
Simple Touch Switch NEW! 161,845 5 *
Simple Two Speed Contactor DC Motor Controller 197,205 21 *
Stepper Motor Controller 731,098 120 *
Time Delay Relay 546,557 88
Time Delay Relay II jawaharlal@excite.com 236,584 39 *
Touch Switch 281,315 51 *
Video Activated Relay 114,904 8 *
Video Stabilizer/MacroVision Removal Antti Paarlahti 171,973 10 *
Water Detector With Sump/Bilge Pump Controller 145,297 18 *
Wire Loop Alarm Alex Meaden 198,423 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! 303,414 25 *
12VDC To 120VAC Inverter 1,494,237 689
6V to 12V Converter 513,859 121
Automatic 12V Lead Acid Battery Charger 921,272 248
Automatic Load Sensing Power Switch 158,896 16 *
Car Battery Charger 869,906 159 *
Dual Polarity Power Supply 361,442 84 *
Fixed Voltage Power Supply 301,673 52 *
High Current Power Supply 326,722 66 *
High Voltage High Current Power Supply 244,367 35 *
LASER Power Supply 285,728 28
Portable CD Player Adapter For Car 203,733 12 *
Power Supply 726,245 259 *
Solid State Tesla Coil NEW! 137,022 4
Solid State Tesla Coil/High Voltage Generator 430,449 50
Transformerless Power Supply 453,161 117 *
Voltage Inverter 326,937 51 *
Voltage Inverter II 193,191 19 *

Sound/Radio

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
22 Watt Audio Amplifier 575,444 182
3 Watt FM Transmitter Rae XL Tkacik 323,758 83 *
50 Watt Amplifier 496,821 74
8 Note Tune Player 134,087 12 *
8 Watt Audio Amp 361,487 67 *
Aircraft Radio Communications Receiver 266,696 49 *
Crystal Radio 152,290 53 *
Digital Volume Control 323,460 47 *
Electronic Stethoscope 304,002 142 *
FET Audio Mixer 333,440 41
FM Transmitter 986,672 420
Guitar Fuzz Effect 236,514 54 *
Microphone Mixer Anatoly I. Shikhatov 241,754 26 *
Mono To Stereo Synthesizer oRbEq 124,835 18 *
One Tube Regenerative Radio NEW! 126,962 4 *
Op Amp Radio 375,436 80 *
Single Chip AM Radio NEW! 93,068 2 *
Single Chip FM Radio NEW! 162,578 1 *
Sound Level Meter 332,158 51 *
Stereo Tube Amplifier Weslee Kinsler 259,298 15 *
Tone Control 299,524 31
Transistor Organ 190,051 28

Telephone

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Cut Phone Line Detector 156,858 27 *
FM Telephone Bug 228,940 57
Phone Busy Indicator 206,972 24 *
Remote Telephone Ringer 111,987 3 *
Ringing Phone Light Flasher 207,259 35 *
Simple Phone Tap Derek Tombrello 376,276 98 *
Telephone Hold Button 121,919 10
Telephone Recorder 209,329 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.