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
Saturday, May 30, 2020
12VDC Fluorescent Lamp Driver74
12VDC To 120VAC Inverter56
Yesterday
Friday, May 29, 2020
7 Segment LED Counter74
Electronic Dice67
Of All Time 12VDC To 120VAC Inverter1,465,321
FM Transmitter968,370

Auto

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Automatic Headlight Brightness Switch 209,008 61 *
Car Alarm Arming Horn Beep Canceller bob 120,211 6 *
Wireless Auto Tachometer 322,025 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 145,881 29 *
Parallel (Printer) Port Interface 262,193 71

Light/Laser

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
12VDC Fluorescent Lamp Driver 421,442 63 *
3 Channel Spectrum Analyzer 202,652 20
40W Fluorescent Lamp Inverter Bart Milnes 311,058 60 *
Adjustable Strobe Light 286,464 36
Black Light 251,012 29
Colour (Sound) Organ 268,737 36
Electronic Dice NEW! 170,490 10 *
Fantastic Atom Expander 183,402 25
Flash Slave Trigger 201,036 18 *
Infa-Red Remote Control 610,521 216 *
IR Remote Extender NEW! 112,419 2 *
IR Remote Jammer Carl 243,710 110 *
IR Remote Switch NEW! 140,885 9 *
LASER Transmitter/Receiver 387,713 92
LED Chaser 425,503 83 *
LED Metronome NEW! 88,582 3 *
LED Thermometer 191,748 22 *
Light/Dark Detector 289,802 90 *
Simple Colour Organ 124,047 10 *
Strobe Light 258,209 27 *
TRIAC Light Dimmer 480,220 55

Major Projects

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Computerize Your Room/Home 335,846 122 *
Electromagnetic Levitator NEW! 128,507 15 *

Other

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
7 Segment LED Counter 893,582 214 *
AC Motor Speed Controller 364,770 29 *
Air Flow Detector 235,663 54 *
Digital Keypad Combination Lock 181,232 20
Low Voltage Alarm 210,603 58 *
Pine Racecar Victory Judge 89,813 1 *
Pulse Width Modulation DC Motor Control 628,630 94
Rain Detector 288,778 112 *
Simple Lie Detector 541,227 323
Simple Polarity Tester Dudley LeRoux 147,675 13 *
Simple Servo Controller 204,132 22 *
Simple Touch Switch NEW! 153,838 5 *
Simple Two Speed Contactor DC Motor Controller 189,149 21 *
Stepper Motor Controller 717,107 120 *
Time Delay Relay 536,494 88
Time Delay Relay II jawaharlal@excite.com 225,914 39 *
Touch Switch 272,666 51 *
Video Activated Relay 107,777 8 *
Video Stabilizer/MacroVision Removal Antti Paarlahti 163,299 10 *
Water Detector With Sump/Bilge Pump Controller 134,227 18 *
Wire Loop Alarm Alex Meaden 190,706 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! 292,949 25 *
12VDC To 120VAC Inverter 1,465,321 689
6V to 12V Converter 497,684 121
Automatic 12V Lead Acid Battery Charger 906,420 247
Automatic Load Sensing Power Switch 148,971 16 *
Car Battery Charger 857,195 159 *
Dual Polarity Power Supply 354,076 84 *
Fixed Voltage Power Supply 292,648 52 *
High Current Power Supply 316,194 65 *
High Voltage High Current Power Supply 236,016 35 *
LASER Power Supply 275,734 28
Portable CD Player Adapter For Car 194,412 12 *
Power Supply 714,450 259 *
Solid State Tesla Coil NEW! 130,077 4
Solid State Tesla Coil/High Voltage Generator 415,955 50
Transformerless Power Supply 442,539 117 *
Voltage Inverter 316,528 51 *
Voltage Inverter II 185,357 19 *

Sound/Radio

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
22 Watt Audio Amplifier 564,802 182
3 Watt FM Transmitter Rae XL Tkacik 313,530 82 *
50 Watt Amplifier 486,167 74
8 Note Tune Player 126,904 12 *
8 Watt Audio Amp 350,137 67 *
Aircraft Radio Communications Receiver 256,911 49 *
Crystal Radio 147,426 53 *
Digital Volume Control 313,843 47 *
Electronic Stethoscope 292,426 141 *
FET Audio Mixer 322,848 41
FM Transmitter 968,370 419
Guitar Fuzz Effect 226,264 52 *
Microphone Mixer Anatoly I. Shikhatov 232,783 26 *
Mono To Stereo Synthesizer oRbEq 115,709 18 *
One Tube Regenerative Radio NEW! 118,903 4 *
Op Amp Radio 364,138 80 *
Single Chip AM Radio NEW! 88,144 2 *
Single Chip FM Radio NEW! 153,045 1 *
Sound Level Meter 323,266 51 *
Stereo Tube Amplifier Weslee Kinsler 250,277 15 *
Tone Control 288,314 31
Transistor Organ 180,202 28

Telephone

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Cut Phone Line Detector 149,341 27 *
FM Telephone Bug 221,071 57
Phone Busy Indicator 199,749 24 *
Remote Telephone Ringer 104,451 3 *
Ringing Phone Light Flasher 197,230 35 *
Simple Phone Tap Derek Tombrello 351,517 98 *
Telephone Hold Button 114,380 10
Telephone Recorder 200,281 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.