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
Sunday, September 19, 2021
12VDC Fluorescent Lamp Driver13
Solid State Tesla Coil/High Voltage Generator12
Yesterday
Saturday, September 18, 2021
FM Transmitter31
Voltage Inverter26
Of All Time 12VDC To 120VAC Inverter1,491,506
FM Transmitter982,327

Auto

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Automatic Headlight Brightness Switch 218,293 61 *
Car Alarm Arming Horn Beep Canceller bob 128,942 6 *
Wireless Auto Tachometer 332,604 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 152,682 29 *
Parallel (Printer) Port Interface 273,786 71

Light/Laser

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
12VDC Fluorescent Lamp Driver 435,421 63 *
3 Channel Spectrum Analyzer 211,289 20
40W Fluorescent Lamp Inverter Bart Milnes 320,748 60 *
Adjustable Strobe Light 297,582 36
Black Light 264,412 29
Colour (Sound) Organ 279,576 36
Electronic Dice NEW! 179,974 10 *
Fantastic Atom Expander 193,702 25
Flash Slave Trigger 210,985 18 *
Infa-Red Remote Control 622,386 216 *
IR Remote Extender NEW! 122,821 2 *
IR Remote Jammer Carl 253,488 110 *
IR Remote Switch NEW! 149,853 9 *
LASER Transmitter/Receiver 400,618 92
LED Chaser 434,017 83 *
LED Metronome NEW! 92,924 3 *
LED Thermometer 198,879 22 *
Light/Dark Detector 297,753 90 *
Simple Colour Organ 130,440 10 *
Strobe Light 265,828 27 *
TRIAC Light Dimmer 539,794 55

Major Projects

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Computerize Your Room/Home 349,399 122 *
Electromagnetic Levitator NEW! 136,047 15 *

Other

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
7 Segment LED Counter 908,296 214 *
AC Motor Speed Controller 375,431 29 *
Air Flow Detector 243,282 54 *
Digital Keypad Combination Lock 188,552 20
Low Voltage Alarm 218,825 58 *
Pine Racecar Victory Judge 96,153 1 *
Pulse Width Modulation DC Motor Control 637,606 94
Rain Detector 295,968 112 *
Simple Lie Detector 550,250 323
Simple Polarity Tester Dudley LeRoux 156,842 13 *
Simple Servo Controller 211,975 22 *
Simple Touch Switch NEW! 161,143 5 *
Simple Two Speed Contactor DC Motor Controller 196,488 21 *
Stepper Motor Controller 729,718 120 *
Time Delay Relay 545,646 88
Time Delay Relay II jawaharlal@excite.com 235,653 39 *
Touch Switch 280,559 51 *
Video Activated Relay 114,266 8 *
Video Stabilizer/MacroVision Removal Antti Paarlahti 171,193 10 *
Water Detector With Sump/Bilge Pump Controller 144,555 18 *
Wire Loop Alarm Alex Meaden 197,746 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! 302,441 25 *
12VDC To 120VAC Inverter 1,491,506 689
6V to 12V Converter 512,561 121
Automatic 12V Lead Acid Battery Charger 919,683 248
Automatic Load Sensing Power Switch 157,799 16 *
Car Battery Charger 868,764 159 *
Dual Polarity Power Supply 360,600 84 *
Fixed Voltage Power Supply 300,776 52 *
High Current Power Supply 325,829 66 *
High Voltage High Current Power Supply 243,592 35 *
LASER Power Supply 284,798 28
Portable CD Player Adapter For Car 202,910 12 *
Power Supply 725,215 259 *
Solid State Tesla Coil NEW! 136,220 4
Solid State Tesla Coil/High Voltage Generator 429,299 50
Transformerless Power Supply 452,204 117 *
Voltage Inverter 325,262 51 *
Voltage Inverter II 192,507 19 *

Sound/Radio

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
22 Watt Audio Amplifier 574,397 182
3 Watt FM Transmitter Rae XL Tkacik 322,698 83 *
50 Watt Amplifier 495,816 74
8 Note Tune Player 133,441 12 *
8 Watt Audio Amp 360,381 67 *
Aircraft Radio Communications Receiver 265,779 49 *
Crystal Radio 151,760 53 *
Digital Volume Control 322,552 47 *
Electronic Stethoscope 302,948 142 *
FET Audio Mixer 332,442 41
FM Transmitter 982,327 420
Guitar Fuzz Effect 235,545 54 *
Microphone Mixer Anatoly I. Shikhatov 240,987 26 *
Mono To Stereo Synthesizer oRbEq 124,026 18 *
One Tube Regenerative Radio NEW! 125,952 4 *
Op Amp Radio 374,306 80 *
Single Chip AM Radio NEW! 92,502 2 *
Single Chip FM Radio NEW! 161,696 1 *
Sound Level Meter 331,309 51 *
Stereo Tube Amplifier Weslee Kinsler 258,400 15 *
Tone Control 298,176 31
Transistor Organ 189,150 28

Telephone

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Cut Phone Line Detector 156,158 27 *
FM Telephone Bug 228,267 57
Phone Busy Indicator 206,215 24 *
Remote Telephone Ringer 111,410 3 *
Ringing Phone Light Flasher 206,127 35 *
Simple Phone Tap Derek Tombrello 375,594 98 *
Telephone Hold Button 121,321 10
Telephone Recorder 208,535 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.