Electronic Circuits

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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, September 28, 2024		 12VDC To 120VAC Inverter33
One Tube Regenerative Radio26
Yesterday
Friday, September 27, 2024		 12VDC To 120VAC Inverter35
High Current Power Supply26
Of All Time 12VDC To 120VAC Inverter1,537,630
FM Transmitter1,014,508

Auto

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Circuit Author Views Rank Comments Marker
Automatic Headlight Brightness Switch 228,901 61 *
Car Alarm Arming Horn Beep Canceller bob 138,401 6 *
Wireless Auto Tachometer 345,370 58

Computer

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Circuit Author Views Rank Comments Marker
Computer Controlled Frequency Counter/Logic Probe Richard van Wyk 161,647 29 *
Parallel (Printer) Port Interface 289,299 71

Light/Laser

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Circuit Author Views Rank Comments Marker
12VDC Fluorescent Lamp Driver 450,379 63 *
3 Channel Spectrum Analyzer 224,496 20
40W Fluorescent Lamp Inverter Bart Milnes 332,215 60 *
Adjustable Strobe Light 311,618 36
Black Light 284,045 29
Colour (Sound) Organ 293,306 36
Electronic Dice NEW! 191,291 10 *
Fantastic Atom Expander 204,964 25
Flash Slave Trigger 223,666 18 *
Infa-Red Remote Control 640,028 216 *
IR Remote Extender NEW! 134,927 3 *
IR Remote Jammer Carl 268,795 110 *
IR Remote Switch NEW! 159,578 9 *
LASER Transmitter/Receiver 419,982 92
LED Chaser 448,933 83 *
LED Metronome NEW! 101,557 3 *
LED Thermometer 208,915 22 *
Light/Dark Detector 308,097 90 *
Simple Colour Organ 139,336 11 *
Strobe Light 277,850 27 *
TRIAC Light Dimmer 556,132 55

Major Projects

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Circuit Author Views Rank Comments Marker
Computerize Your Room/Home 362,958 122 *
Electromagnetic Levitator NEW! 146,407 15 *

Other

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Circuit Author Views Rank Comments Marker
7 Segment LED Counter 925,777 214 *
AC Motor Speed Controller 395,007 29 *
Air Flow Detector 254,035 54 *
Digital Keypad Combination Lock 204,193 20
Low Voltage Alarm 231,519 58 *
Pine Racecar Victory Judge 104,565 1 *
Pulse Width Modulation DC Motor Control 657,981 94
Rain Detector 307,138 112 *
Simple Lie Detector 567,585 323
Simple Polarity Tester Dudley LeRoux 167,650 13 *
Simple Servo Controller 223,871 22 *
Simple Touch Switch NEW! 172,131 6 *
Simple Two Speed Contactor DC Motor Controller 207,459 21 *
Stepper Motor Controller 750,835 120 *
Time Delay Relay 558,462 88
Time Delay Relay II jawaharlal@excite.com 249,785 39 *
Touch Switch 292,209 51 *
Video Activated Relay 123,872 8 *
Video Stabilizer/MacroVision Removal Antti Paarlahti 183,914 10 *
Water Detector With Sump/Bilge Pump Controller 155,171 18 *
Wire Loop Alarm Alex Meaden 207,753 27 *

Power Supply

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Circuit Author Views Rank Comments Marker
12V To 24V DC-DC Converter NEW! 319,677 25 *
12VDC To 120VAC Inverter 1,537,630 691
6V to 12V Converter 531,057 121
Automatic 12V Lead Acid Battery Charger 940,595 248
Automatic Load Sensing Power Switch 169,899 16 *
Car Battery Charger 886,445 159 *
Dual Polarity Power Supply 374,025 84 *
Fixed Voltage Power Supply 313,975 52 *
High Current Power Supply 342,581 66 *
High Voltage High Current Power Supply 266,579 35 *
LASER Power Supply 299,051 28
Portable CD Player Adapter For Car 214,515 12 *
Power Supply 742,561 259 *
Solid State Tesla Coil NEW! 149,162 4
Solid State Tesla Coil/High Voltage Generator 447,971 51
Transformerless Power Supply 466,294 117 *
Voltage Inverter 343,058 51 *
Voltage Inverter II 206,019 19 *

Sound/Radio

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Circuit Author Views Rank Comments Marker
22 Watt Audio Amplifier 588,320 182
3 Watt FM Transmitter Rae XL Tkacik 339,044 83 *
50 Watt Amplifier 511,292 74
8 Note Tune Player 142,986 12 *
8 Watt Audio Amp 376,765 67 *
Aircraft Radio Communications Receiver 282,124 49 *
Crystal Radio 161,514 53 *
Digital Volume Control 341,518 47 *
Electronic Stethoscope 324,514 142 *
FET Audio Mixer 346,408 41
FM Transmitter 1,014,508 420
Guitar Fuzz Effect 250,509 54 *
Microphone Mixer Anatoly I. Shikhatov 253,382 26 *
Mono To Stereo Synthesizer oRbEq 136,705 18 *
One Tube Regenerative Radio NEW! 146,556 4 *
Op Amp Radio 392,866 80 *
Single Chip AM Radio NEW! 102,260 3 *
Single Chip FM Radio NEW! 175,451 1 *
Sound Level Meter 344,779 51 *
Stereo Tube Amplifier Weslee Kinsler 271,069 15 *
Tone Control 312,689 31
Transistor Organ 202,570 28

Telephone

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Circuit Author Views Rank Comments Marker
Cut Phone Line Detector 165,762 27 *
FM Telephone Bug 237,353 57
Phone Busy Indicator 216,096 24 *
Remote Telephone Ringer 120,346 3 *
Ringing Phone Light Flasher 221,321 35 *
Simple Phone Tap Derek Tombrello 385,960 98 *
Telephone Hold Button 131,226 10
Telephone Recorder 218,865 55 *

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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.