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
Friday, January 24, 2020
12VDC Fluorescent Lamp Driver63
LASER Transmitter/Receiver62
Yesterday
Thursday, January 23, 2020
Low Voltage Alarm470
Time Delay Relay422
Of All Time 12VDC To 120VAC Inverter1,456,268
FM Transmitter962,202

Auto

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Automatic Headlight Brightness Switch 203,998 61 *
Car Alarm Arming Horn Beep Canceller bob 115,084 6 *
Wireless Auto Tachometer 316,296 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 142,576 29 *
Parallel (Printer) Port Interface 256,203 71

Light/Laser

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
12VDC Fluorescent Lamp Driver 413,442 63 *
3 Channel Spectrum Analyzer 198,866 20
40W Fluorescent Lamp Inverter Bart Milnes 305,764 60 *
Adjustable Strobe Light 280,617 36
Black Light 244,395 29
Colour (Sound) Organ 263,247 36
Electronic Dice NEW! 165,301 10 *
Fantastic Atom Expander 177,606 25
Flash Slave Trigger 195,716 18 *
Infa-Red Remote Control 603,211 216 *
IR Remote Extender NEW! 106,711 2 *
IR Remote Jammer Carl 238,896 110 *
IR Remote Switch NEW! 135,792 9 *
LASER Transmitter/Receiver 381,614 92
LED Chaser 421,536 83 *
LED Metronome NEW! 87,356 3 *
LED Thermometer 187,959 22 *
Light/Dark Detector 286,023 90 *
Simple Colour Organ 120,793 10 *
Strobe Light 254,515 27 *
TRIAC Light Dimmer 475,538 55

Major Projects

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Computerize Your Room/Home 329,585 122 *
Electromagnetic Levitator NEW! 124,977 15 *

Other

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
7 Segment LED Counter 886,525 214 *
AC Motor Speed Controller 360,153 29 *
Air Flow Detector 231,947 54 *
Digital Keypad Combination Lock 177,659 20
Low Voltage Alarm 206,758 58 *
Pine Racecar Victory Judge 86,775 1 *
Pulse Width Modulation DC Motor Control 624,444 94
Rain Detector 285,267 112 *
Simple Lie Detector 536,889 323
Simple Polarity Tester Dudley LeRoux 142,211 13 *
Simple Servo Controller 200,490 22 *
Simple Touch Switch NEW! 150,528 5 *
Simple Two Speed Contactor DC Motor Controller 185,668 21 *
Stepper Motor Controller 712,082 120 *
Time Delay Relay 531,655 88
Time Delay Relay II jawaharlal@excite.com 220,427 39 *
Touch Switch 268,765 51 *
Video Activated Relay 104,487 8 *
Video Stabilizer/MacroVision Removal Antti Paarlahti 159,464 10 *
Water Detector With Sump/Bilge Pump Controller 130,532 18 *
Wire Loop Alarm Alex Meaden 187,420 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! 288,602 25 *
12VDC To 120VAC Inverter 1,456,268 689
6V to 12V Converter 483,183 121
Automatic 12V Lead Acid Battery Charger 899,815 247
Automatic Load Sensing Power Switch 145,154 16 *
Car Battery Charger 851,139 159 *
Dual Polarity Power Supply 351,808 84 *
Fixed Voltage Power Supply 288,946 52 *
High Current Power Supply 311,166 65 *
High Voltage High Current Power Supply 232,151 35 *
LASER Power Supply 271,467 28
Portable CD Player Adapter For Car 190,572 12 *
Power Supply 709,232 259 *
Solid State Tesla Coil NEW! 127,968 4
Solid State Tesla Coil/High Voltage Generator 410,534 50
Transformerless Power Supply 438,411 117 *
Voltage Inverter 313,935 51 *
Voltage Inverter II 181,949 19 *

Sound/Radio

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
22 Watt Audio Amplifier 560,287 182
3 Watt FM Transmitter Rae XL Tkacik 308,850 82 *
50 Watt Amplifier 481,316 74
8 Note Tune Player 123,567 12 *
8 Watt Audio Amp 345,834 67 *
Aircraft Radio Communications Receiver 252,241 49 *
Crystal Radio 145,630 53 *
Digital Volume Control 310,086 47 *
Electronic Stethoscope 287,952 141 *
FET Audio Mixer 318,532 41
FM Transmitter 962,202 419
Guitar Fuzz Effect 222,194 52 *
Microphone Mixer Anatoly I. Shikhatov 228,961 26 *
Mono To Stereo Synthesizer oRbEq 111,931 18 *
One Tube Regenerative Radio NEW! 116,868 4 *
Op Amp Radio 358,731 80 *
Single Chip AM Radio NEW! 86,669 2 *
Single Chip FM Radio NEW! 149,069 1 *
Sound Level Meter 319,417 51 *
Stereo Tube Amplifier Weslee Kinsler 246,658 15 *
Tone Control 284,140 31
Transistor Organ 176,298 28

Telephone

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Cut Phone Line Detector 145,871 27 *
FM Telephone Bug 217,651 57
Phone Busy Indicator 196,494 24 *
Remote Telephone Ringer 101,061 3 *
Ringing Phone Light Flasher 193,531 35 *
Simple Phone Tap Derek Tombrello 345,519 98 *
Telephone Hold Button 110,867 10
Telephone Recorder 195,604 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.