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, March 19, 2024
Voltage Inverter15
Colour (Sound) Organ14
Yesterday
Monday, March 18, 2024
12VDC To 120VAC Inverter45
FM Transmitter22
Of All Time 12VDC To 120VAC Inverter1,530,151
FM Transmitter1,008,384

Auto

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Automatic Headlight Brightness Switch 227,337 61 *
Car Alarm Arming Horn Beep Canceller bob 136,950 6 *
Wireless Auto Tachometer 343,430 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 160,265 29 *
Parallel (Printer) Port Interface 286,133 71

Light/Laser

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
12VDC Fluorescent Lamp Driver 448,042 63 *
3 Channel Spectrum Analyzer 222,099 20
40W Fluorescent Lamp Inverter Bart Milnes 330,541 60 *
Adjustable Strobe Light 309,387 36
Black Light 280,930 29
Colour (Sound) Organ 291,017 36
Electronic Dice NEW! 189,551 10 *
Fantastic Atom Expander 203,389 25
Flash Slave Trigger 221,633 18 *
Infa-Red Remote Control 637,494 216 *
IR Remote Extender NEW! 133,117 3 *
IR Remote Jammer Carl 266,339 110 *
IR Remote Switch NEW! 158,037 9 *
LASER Transmitter/Receiver 416,626 92
LED Chaser 446,335 83 *
LED Metronome NEW! 99,805 3 *
LED Thermometer 207,157 22 *
Light/Dark Detector 306,529 90 *
Simple Colour Organ 137,972 11 *
Strobe Light 276,295 27 *
TRIAC Light Dimmer 553,056 55

Major Projects

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Computerize Your Room/Home 359,755 122 *
Electromagnetic Levitator NEW! 144,845 15 *

Other

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
7 Segment LED Counter 922,627 214 *
AC Motor Speed Controller 391,687 29 *
Air Flow Detector 252,212 54 *
Digital Keypad Combination Lock 202,740 20
Low Voltage Alarm 229,653 58 *
Pine Racecar Victory Judge 103,131 1 *
Pulse Width Modulation DC Motor Control 655,243 94
Rain Detector 305,111 112 *
Simple Lie Detector 564,969 323
Simple Polarity Tester Dudley LeRoux 165,891 13 *
Simple Servo Controller 221,872 22 *
Simple Touch Switch NEW! 170,304 6 *
Simple Two Speed Contactor DC Motor Controller 205,693 21 *
Stepper Motor Controller 746,128 120 *
Time Delay Relay 556,013 88
Time Delay Relay II jawaharlal@excite.com 247,417 39 *
Touch Switch 290,157 51 *
Video Activated Relay 122,217 8 *
Video Stabilizer/MacroVision Removal Antti Paarlahti 181,694 10 *
Water Detector With Sump/Bilge Pump Controller 153,233 18 *
Wire Loop Alarm Alex Meaden 206,243 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! 316,349 25 *
12VDC To 120VAC Inverter 1,530,151 691
6V to 12V Converter 527,828 121
Automatic 12V Lead Acid Battery Charger 937,598 248
Automatic Load Sensing Power Switch 167,792 16 *
Car Battery Charger 883,636 159 *
Dual Polarity Power Supply 371,654 84 *
Fixed Voltage Power Supply 311,727 52 *
High Current Power Supply 339,341 66 *
High Voltage High Current Power Supply 264,491 35 *
LASER Power Supply 296,592 28
Portable CD Player Adapter For Car 212,910 12 *
Power Supply 738,885 259 *
Solid State Tesla Coil NEW! 146,843 4
Solid State Tesla Coil/High Voltage Generator 444,778 51
Transformerless Power Supply 463,580 117 *
Voltage Inverter 339,130 51 *
Voltage Inverter II 203,528 19 *

Sound/Radio

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
22 Watt Audio Amplifier 585,833 182
3 Watt FM Transmitter Rae XL Tkacik 335,713 83 *
50 Watt Amplifier 508,157 74
8 Note Tune Player 141,181 12 *
8 Watt Audio Amp 373,127 67 *
Aircraft Radio Communications Receiver 278,932 49 *
Crystal Radio 159,366 53 *
Digital Volume Control 338,828 47 *
Electronic Stethoscope 321,737 142 *
FET Audio Mixer 344,086 41
FM Transmitter 1,008,384 420
Guitar Fuzz Effect 248,023 54 *
Microphone Mixer Anatoly I. Shikhatov 251,137 26 *
Mono To Stereo Synthesizer oRbEq 134,316 18 *
One Tube Regenerative Radio NEW! 142,440 4 *
Op Amp Radio 389,228 80 *
Single Chip AM Radio NEW! 100,322 3 *
Single Chip FM Radio NEW! 173,096 1 *
Sound Level Meter 342,507 51 *
Stereo Tube Amplifier Weslee Kinsler 268,807 15 *
Tone Control 310,289 31
Transistor Organ 200,099 28

Telephone

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Cut Phone Line Detector 164,161 27 *
FM Telephone Bug 235,977 57
Phone Busy Indicator 214,507 24 *
Remote Telephone Ringer 118,880 3 *
Ringing Phone Light Flasher 218,645 35 *
Simple Phone Tap Derek Tombrello 384,182 98 *
Telephone Hold Button 129,651 10
Telephone Recorder 217,110 55 *


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.