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
Saturday, January 22, 2022
12VDC To 120VAC Inverter41
Wireless Auto Tachometer32
Yesterday
Friday, January 21, 2022
6V to 12V Converter38
Flash Slave Trigger35
Of All Time 12VDC To 120VAC Inverter1,496,475
FM Transmitter988,269

Auto

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Automatic Headlight Brightness Switch 219,742 61 *
Car Alarm Arming Horn Beep Canceller bob 130,179 6 *
Wireless Auto Tachometer 334,430 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 153,851 29 *
Parallel (Printer) Port Interface 275,648 71

Light/Laser

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
12VDC Fluorescent Lamp Driver 437,546 63 *
3 Channel Spectrum Analyzer 212,832 20
40W Fluorescent Lamp Inverter Bart Milnes 322,336 60 *
Adjustable Strobe Light 299,495 36
Black Light 266,917 29
Colour (Sound) Organ 281,392 36
Electronic Dice NEW! 181,412 10 *
Fantastic Atom Expander 195,897 25
Flash Slave Trigger 212,607 18 *
Infa-Red Remote Control 624,305 216 *
IR Remote Extender NEW! 124,495 2 *
IR Remote Jammer Carl 255,404 110 *
IR Remote Switch NEW! 151,140 9 *
LASER Transmitter/Receiver 402,881 92
LED Chaser 435,798 83 *
LED Metronome NEW! 93,841 3 *
LED Thermometer 200,177 22 *
Light/Dark Detector 299,346 90 *
Simple Colour Organ 131,592 10 *
Strobe Light 267,414 27 *
TRIAC Light Dimmer 541,488 55

Major Projects

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Computerize Your Room/Home 351,065 122 *
Electromagnetic Levitator NEW! 137,409 15 *

Other

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
7 Segment LED Counter 910,813 214 *
AC Motor Speed Controller 377,747 29 *
Air Flow Detector 244,611 54 *
Digital Keypad Combination Lock 189,934 20
Low Voltage Alarm 220,991 58 *
Pine Racecar Victory Judge 97,255 1 *
Pulse Width Modulation DC Motor Control 639,439 94
Rain Detector 297,484 112 *
Simple Lie Detector 551,990 323
Simple Polarity Tester Dudley LeRoux 158,319 13 *
Simple Servo Controller 213,928 22 *
Simple Touch Switch NEW! 162,499 5 *
Simple Two Speed Contactor DC Motor Controller 197,871 21 *
Stepper Motor Controller 732,753 120 *
Time Delay Relay 547,276 88
Time Delay Relay II jawaharlal@excite.com 237,391 39 *
Touch Switch 282,019 51 *
Video Activated Relay 115,484 8 *
Video Stabilizer/MacroVision Removal Antti Paarlahti 172,716 10 *
Water Detector With Sump/Bilge Pump Controller 145,959 18 *
Wire Loop Alarm Alex Meaden 199,122 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! 304,276 25 *
12VDC To 120VAC Inverter 1,496,475 689
6V to 12V Converter 515,070 121
Automatic 12V Lead Acid Battery Charger 922,726 248
Automatic Load Sensing Power Switch 159,777 16 *
Car Battery Charger 870,984 159 *
Dual Polarity Power Supply 362,180 84 *
Fixed Voltage Power Supply 302,488 52 *
High Current Power Supply 327,633 66 *
High Voltage High Current Power Supply 245,014 35 *
LASER Power Supply 286,562 28
Portable CD Player Adapter For Car 204,460 12 *
Power Supply 727,142 259 *
Solid State Tesla Coil NEW! 137,658 4
Solid State Tesla Coil/High Voltage Generator 431,529 50
Transformerless Power Supply 453,996 117 *
Voltage Inverter 328,142 51 *
Voltage Inverter II 193,921 19 *

Sound/Radio

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
22 Watt Audio Amplifier 576,301 182
3 Watt FM Transmitter Rae XL Tkacik 324,610 83 *
50 Watt Amplifier 497,671 74
8 Note Tune Player 134,609 12 *
8 Watt Audio Amp 362,399 67 *
Aircraft Radio Communications Receiver 267,537 49 *
Crystal Radio 152,760 53 *
Digital Volume Control 324,222 47 *
Electronic Stethoscope 304,785 142 *
FET Audio Mixer 334,369 41
FM Transmitter 988,269 420
Guitar Fuzz Effect 237,423 54 *
Microphone Mixer Anatoly I. Shikhatov 242,483 26 *
Mono To Stereo Synthesizer oRbEq 125,540 18 *
One Tube Regenerative Radio NEW! 127,973 4 *
Op Amp Radio 376,433 80 *
Single Chip AM Radio NEW! 93,552 2 *
Single Chip FM Radio NEW! 163,313 1 *
Sound Level Meter 332,964 51 *
Stereo Tube Amplifier Weslee Kinsler 259,950 15 *
Tone Control 300,739 31
Transistor Organ 190,812 28

Telephone

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Cut Phone Line Detector 157,451 27 *
FM Telephone Bug 229,551 57
Phone Busy Indicator 207,588 24 *
Remote Telephone Ringer 112,575 3 *
Ringing Phone Light Flasher 208,142 35 *
Simple Phone Tap Derek Tombrello 376,955 98 *
Telephone Hold Button 122,532 10
Telephone Recorder 209,946 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.