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, December 11, 2018
Dual Polarity Power Supply44
Stepper Motor Controller34
Yesterday
Monday, December 10, 2018
7 Segment LED Counter117
Car Battery Charger82
Of All Time 12VDC To 120VAC Inverter1,423,984
FM Transmitter942,193

Auto

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Automatic Headlight Brightness Switch 194,139 61 *
Car Alarm Arming Horn Beep Canceller bob 105,525 6 *
Wireless Auto Tachometer 301,309 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 135,130 29 *
Parallel (Printer) Port Interface 240,196 71

Light/Laser

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
12VDC Fluorescent Lamp Driver 397,549 63 *
3 Channel Spectrum Analyzer 189,813 20
40W Fluorescent Lamp Inverter Bart Milnes 293,878 60 *
Adjustable Strobe Light 268,434 36
Black Light 230,058 29
Colour (Sound) Organ 251,592 36
Electronic Dice NEW! 154,353 10 *
Fantastic Atom Expander 166,171 25
Flash Slave Trigger 185,595 18 *
Infa-Red Remote Control 587,968 216 *
IR Remote Extender NEW! 95,109 2 *
IR Remote Jammer Carl 229,430 110 *
IR Remote Switch NEW! 125,192 9 *
LASER Transmitter/Receiver 368,460 92
LED Chaser 411,528 83 *
LED Metronome NEW! 82,684 3 *
LED Thermometer 179,669 22 *
Light/Dark Detector 277,784 90 *
Simple Colour Organ 114,305 10 *
Strobe Light 246,810 27 *
TRIAC Light Dimmer 459,362 55

Major Projects

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Computerize Your Room/Home 316,140 122 *
Electromagnetic Levitator NEW! 116,590 15 *

Other

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
7 Segment LED Counter 865,592 214 *
AC Motor Speed Controller 345,246 29 *
Air Flow Detector 223,707 54 *
Digital Keypad Combination Lock 167,296 20
Low Voltage Alarm 197,600 58 *
Pine Racecar Victory Judge 78,488 1 *
Pulse Width Modulation DC Motor Control 613,908 93
Rain Detector 277,030 112 *
Simple Lie Detector 523,344 323
Simple Polarity Tester Dudley LeRoux 131,935 13 *
Simple Servo Controller 187,785 22 *
Simple Touch Switch NEW! 143,021 5 *
Simple Two Speed Contactor DC Motor Controller 177,737 21 *
Stepper Motor Controller 694,398 120 *
Time Delay Relay 518,025 88
Time Delay Relay II jawaharlal@excite.com 209,422 39 *
Touch Switch 260,378 51 *
Video Activated Relay 97,712 8 *
Video Stabilizer/MacroVision Removal Antti Paarlahti 149,795 10 *
Water Detector With Sump/Bilge Pump Controller 123,304 18 *
Wire Loop Alarm Alex Meaden 180,115 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! 273,472 25 *
12VDC To 120VAC Inverter 1,423,984 688
6V to 12V Converter 456,095 121
Automatic 12V Lead Acid Battery Charger 879,210 246
Automatic Load Sensing Power Switch 136,267 16 *
Car Battery Charger 832,342 159 *
Dual Polarity Power Supply 338,017 84 *
Fixed Voltage Power Supply 280,351 52 *
High Current Power Supply 298,316 65 *
High Voltage High Current Power Supply 223,933 35 *
LASER Power Supply 256,617 28
Portable CD Player Adapter For Car 182,105 12 *
Power Supply 692,901 259 *
Solid State Tesla Coil NEW! 121,176 4
Solid State Tesla Coil/High Voltage Generator 393,288 50
Transformerless Power Supply 421,958 117 *
Voltage Inverter 306,410 51 *
Voltage Inverter II 174,990 19 *

Sound/Radio

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
22 Watt Audio Amplifier 549,503 182
3 Watt FM Transmitter Rae XL Tkacik 298,791 82 *
50 Watt Amplifier 467,362 74
8 Note Tune Player 117,117 12 *
8 Watt Audio Amp 332,299 67 *
Aircraft Radio Communications Receiver 236,146 49 *
Crystal Radio 138,258 53 *
Digital Volume Control 299,166 47 *
Electronic Stethoscope 276,657 141 *
FET Audio Mixer 308,398 41
FM Transmitter 942,193 419
Guitar Fuzz Effect 209,161 52 *
Microphone Mixer Anatoly I. Shikhatov 217,516 26 *
Mono To Stereo Synthesizer oRbEq 101,121 18 *
One Tube Regenerative Radio NEW! 107,056 4 *
Op Amp Radio 347,587 80 *
Single Chip AM Radio NEW! 81,717 2 *
Single Chip FM Radio NEW! 136,503 1 *
Sound Level Meter 307,279 51 *
Stereo Tube Amplifier Weslee Kinsler 234,961 15 *
Tone Control 271,412 31
Transistor Organ 165,647 28

Telephone

Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Cut Phone Line Detector 138,975 27 *
FM Telephone Bug 205,846 57
Phone Busy Indicator 186,873 24 *
Remote Telephone Ringer 94,826 3 *
Ringing Phone Light Flasher 184,135 34 *
Simple Phone Tap Derek Tombrello 332,907 98 *
Telephone Hold Button 100,057 10
Telephone Recorder 185,301 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.