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, November 21, 2017
Car Battery Charger22
12VDC To 120VAC Inverter20
Yesterday
Monday, November 20, 2017
Dual Polarity Power Supply86
Stepper Motor Controller85
Of All Time 12VDC To 120VAC Inverter1,396,160
FM Transmitter925,634

Auto

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Automatic Headlight Brightness Switch 186,491 61 *
Car Alarm Arming Horn Beep Canceller bob 98,709 6 *
Wireless Auto Tachometer 293,793 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 130,270 29 *
Parallel (Printer) Port Interface 232,589 71

Light/Laser

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
12VDC Fluorescent Lamp Driver 388,141 62 *
3 Channel Spectrum Analyzer 180,845 20
40W Fluorescent Lamp Inverter Bart Milnes 286,434 60 *
Adjustable Strobe Light 258,915 36
Black Light 220,825 29
Colour (Sound) Organ 243,139 36
Electronic Dice NEW! 147,675 9 *
Fantastic Atom Expander 157,628 25
Flash Slave Trigger 178,628 17 *
Infa-Red Remote Control 575,614 216 *
IR Remote Extender NEW! 87,843 2 *
IR Remote Jammer Carl 220,840 110 *
IR Remote Switch NEW! 117,863 9 *
LASER Transmitter/Receiver 358,574 92
LED Chaser 401,818 83 *
LED Metronome NEW! 77,867 3 *
LED Thermometer 172,328 22 *
Light/Dark Detector 271,288 89 *
Simple Colour Organ 108,187 10 *
Strobe Light 239,782 27 *
TRIAC Light Dimmer 450,373 55

Major Projects

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Computerize Your Room/Home 308,083 122 *
Electromagnetic Levitator NEW! 108,774 15 *

Other

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
7 Segment LED Counter 849,793 214 *
AC Motor Speed Controller 332,627 29 *
Air Flow Detector 215,922 54 *
Digital Keypad Combination Lock 159,732 20
Low Voltage Alarm 189,040 58 *
Pine Racecar Victory Judge 72,807 1 *
Pulse Width Modulation DC Motor Control 604,634 93
Rain Detector 268,434 112 *
Simple Lie Detector 511,563 323
Simple Polarity Tester Dudley LeRoux 124,548 13 *
Simple Servo Controller 180,821 22 *
Simple Touch Switch NEW! 135,373 5 *
Simple Two Speed Contactor DC Motor Controller 172,395 21 *
Stepper Motor Controller 668,503 120 *
Time Delay Relay 505,433 88
Time Delay Relay II jawaharlal@excite.com 200,639 39 *
Touch Switch 252,551 51 *
Video Activated Relay 90,860 8 *
Video Stabilizer/MacroVision Removal Antti Paarlahti 142,121 10 *
Water Detector With Sump/Bilge Pump Controller 116,137 18 *
Wire Loop Alarm Alex Meaden 174,294 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! 262,054 25 *
12VDC To 120VAC Inverter 1,396,160 687
6V to 12V Converter 441,225 121
Automatic 12V Lead Acid Battery Charger 860,305 246
Automatic Load Sensing Power Switch 129,475 15 *
Car Battery Charger 813,374 159 *
Dual Polarity Power Supply 305,597 84 *
Fixed Voltage Power Supply 273,579 52 *
High Current Power Supply 290,753 64 *
High Voltage High Current Power Supply 217,544 35 *
LASER Power Supply 247,814 28
Portable CD Player Adapter For Car 175,220 12 *
Power Supply 678,771 259 *
Solid State Tesla Coil NEW! 112,899 3
Solid State Tesla Coil/High Voltage Generator 379,936 50
Transformerless Power Supply 413,599 117 *
Voltage Inverter 299,435 51 *
Voltage Inverter II 169,734 19 *

Sound/Radio

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
22 Watt Audio Amplifier 538,739 182
3 Watt FM Transmitter Rae XL Tkacik 290,556 81 *
50 Watt Amplifier 454,632 74
8 Note Tune Player 112,137 12 *
8 Watt Audio Amp 322,916 67 *
Aircraft Radio Communications Receiver 227,056 49 *
Crystal Radio 132,980 53 *
Digital Volume Control 291,588 47 *
Electronic Stethoscope 267,266 141 *
FET Audio Mixer 297,739 40
FM Transmitter 925,634 418
Guitar Fuzz Effect 200,666 52 *
Microphone Mixer Anatoly I. Shikhatov 209,440 26 *
Mono To Stereo Synthesizer oRbEq 94,926 18 *
One Tube Regenerative Radio NEW! 99,823 4 *
Op Amp Radio 336,603 80 *
Single Chip AM Radio NEW! 76,721 2 *
Single Chip FM Radio NEW! 128,079 1 *
Sound Level Meter 299,276 51 *
Stereo Tube Amplifier Weslee Kinsler 228,283 15 *
Tone Control 263,209 31
Transistor Organ 158,647 28

Telephone

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Cut Phone Line Detector 134,162 27 *
FM Telephone Bug 198,434 57
Phone Busy Indicator 178,071 24 *
Remote Telephone Ringer 90,339 3 *
Ringing Phone Light Flasher 177,000 33 *
Simple Phone Tap Derek Tombrello 326,186 98 *
Telephone Hold Button 94,472 9
Telephone Recorder 178,936 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.