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
Thursday, October 29, 2020
Simple Phone Tap13
Electronic Dice12
Yesterday
Wednesday, October 28, 2020
12VDC Fluorescent Lamp Driver46
12VDC To 120VAC Inverter46
Of All Time 12VDC To 120VAC Inverter1,472,794
FM Transmitter972,707

Auto

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Automatic Headlight Brightness Switch 212,374 61 *
Car Alarm Arming Horn Beep Canceller bob 123,383 6 *
Wireless Auto Tachometer 325,752 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 148,324 29 *
Parallel (Printer) Port Interface 266,291 71

Light/Laser

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
12VDC Fluorescent Lamp Driver 426,124 63 *
3 Channel Spectrum Analyzer 205,733 20
40W Fluorescent Lamp Inverter Bart Milnes 314,371 60 *
Adjustable Strobe Light 290,401 36
Black Light 255,509 29
Colour (Sound) Organ 272,496 36
Electronic Dice NEW! 173,744 10 *
Fantastic Atom Expander 186,861 25
Flash Slave Trigger 204,556 18 *
Infa-Red Remote Control 614,234 216 *
IR Remote Extender NEW! 116,324 2 *
IR Remote Jammer Carl 246,451 110 *
IR Remote Switch NEW! 144,145 9 *
LASER Transmitter/Receiver 391,907 92
LED Chaser 428,362 83 *
LED Metronome NEW! 90,406 3 *
LED Thermometer 194,213 22 *
Light/Dark Detector 292,806 90 *
Simple Colour Organ 126,459 10 *
Strobe Light 260,794 27 *
TRIAC Light Dimmer 533,910 55

Major Projects

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Computerize Your Room/Home 342,103 122 *
Electromagnetic Levitator NEW! 131,372 15 *

Other

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
7 Segment LED Counter 898,530 214 *
AC Motor Speed Controller 368,277 29 *
Air Flow Detector 238,474 54 *
Digital Keypad Combination Lock 183,857 20
Low Voltage Alarm 213,318 58 *
Pine Racecar Victory Judge 92,287 1 *
Pulse Width Modulation DC Motor Control 631,637 94
Rain Detector 291,340 112 *
Simple Lie Detector 544,286 323
Simple Polarity Tester Dudley LeRoux 150,841 13 *
Simple Servo Controller 206,776 22 *
Simple Touch Switch NEW! 156,536 5 *
Simple Two Speed Contactor DC Motor Controller 191,871 21 *
Stepper Motor Controller 721,617 120 *
Time Delay Relay 539,953 88
Time Delay Relay II jawaharlal@excite.com 229,226 39 *
Touch Switch 275,618 51 *
Video Activated Relay 110,083 8 *
Video Stabilizer/MacroVision Removal Antti Paarlahti 166,055 10 *
Water Detector With Sump/Bilge Pump Controller 138,664 18 *
Wire Loop Alarm Alex Meaden 193,348 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! 296,348 25 *
12VDC To 120VAC Inverter 1,472,794 689
6V to 12V Converter 504,296 121
Automatic 12V Lead Acid Battery Charger 910,862 248
Automatic Load Sensing Power Switch 151,981 16 *
Car Battery Charger 861,622 159 *
Dual Polarity Power Supply 356,217 84 *
Fixed Voltage Power Supply 295,345 52 *
High Current Power Supply 319,731 66 *
High Voltage High Current Power Supply 238,648 35 *
LASER Power Supply 278,658 28
Portable CD Player Adapter For Car 197,446 12 *
Power Supply 718,135 259 *
Solid State Tesla Coil NEW! 132,223 4
Solid State Tesla Coil/High Voltage Generator 420,448 50
Transformerless Power Supply 446,156 117 *
Voltage Inverter 319,067 51 *
Voltage Inverter II 187,938 19 *

Sound/Radio

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
22 Watt Audio Amplifier 568,426 182
3 Watt FM Transmitter Rae XL Tkacik 316,766 83 *
50 Watt Amplifier 489,479 74
8 Note Tune Player 129,257 12 *
8 Watt Audio Amp 353,970 67 *
Aircraft Radio Communications Receiver 259,822 49 *
Crystal Radio 149,117 53 *
Digital Volume Control 316,870 47 *
Electronic Stethoscope 295,843 141 *
FET Audio Mixer 326,082 41
FM Transmitter 972,707 420
Guitar Fuzz Effect 229,337 52 *
Microphone Mixer Anatoly I. Shikhatov 235,594 26 *
Mono To Stereo Synthesizer oRbEq 118,568 18 *
One Tube Regenerative Radio NEW! 121,268 4 *
Op Amp Radio 367,525 80 *
Single Chip AM Radio NEW! 89,673 2 *
Single Chip FM Radio NEW! 156,072 1 *
Sound Level Meter 326,042 51 *
Stereo Tube Amplifier Weslee Kinsler 253,025 15 *
Tone Control 291,624 31
Transistor Organ 183,057 28

Telephone

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Cut Phone Line Detector 151,784 27 *
FM Telephone Bug 223,824 57
Phone Busy Indicator 202,029 24 *
Remote Telephone Ringer 107,035 3 *
Ringing Phone Light Flasher 200,455 35 *
Simple Phone Tap Derek Tombrello 370,889 98 *
Telephone Hold Button 116,712 10
Telephone Recorder 203,279 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.