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, May 03, 2024	12VDC To 120VAC Inverter	24
	High Current Power Supply	20
Yesterday Thursday, May 02, 2024	Power Supply	519
	12VDC To 120VAC Inverter	42
Of All Time	12VDC To 120VAC Inverter	1,531,959
	FM Transmitter	1,009,584

Auto	Back to the top of this document

Detailed View: On/Off
Circuit	Author	Views	Rank	Comments	Marker
Automatic Headlight Brightness Switch		227,709		61	*
Car Alarm Arming Horn Beep Canceller	bob	137,286		6	*
Wireless Auto Tachometer		343,849		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	160,572		29	*
Parallel (Printer) Port Interface		286,698		71

Light/Laser

Back to the top of this document

Detailed View: On/Off
Circuit	Author	Views	Rank	Comments	Marker
12VDC Fluorescent Lamp Driver		448,505		63	*
3 Channel Spectrum Analyzer		222,597		20
40W Fluorescent Lamp Inverter	Bart Milnes	330,961		60	*
Adjustable Strobe Light		309,856		36
Black Light		281,613		29
Colour (Sound) Organ		291,531		36
Electronic Dice NEW!		190,020		10	*
Fantastic Atom Expander		203,760		25
Flash Slave Trigger		222,026		18	*
Infa-Red Remote Control		638,080		216	*
IR Remote Extender NEW!		133,519		3	*
IR Remote Jammer	Carl	267,006		110	*
IR Remote Switch NEW!		158,461		9	*
LASER Transmitter/Receiver		417,424		92
LED Chaser		446,876		83	*
LED Metronome NEW!		100,247		3	*
LED Thermometer		207,548		22	*
Light/Dark Detector		306,947		90	*
Simple Colour Organ		138,275		11	*
Strobe Light		276,659		27	*
TRIAC Light Dimmer		553,773		55

Major Projects

Back to the top of this document

Detailed View: On/Off
Circuit	Author	Views	Rank	Comments	Marker
Computerize Your Room/Home		360,239		122	*
Electromagnetic Levitator NEW!		145,207		15	*

Other

Back to the top of this document

Detailed View: On/Off
Circuit	Author	Views	Rank	Comments	Marker
7 Segment LED Counter		923,240		214	*
AC Motor Speed Controller		392,398		29	*
Air Flow Detector		252,628		54	*
Digital Keypad Combination Lock		203,125		20
Low Voltage Alarm		230,104		58	*
Pine Racecar Victory Judge		103,489		1	*
Pulse Width Modulation DC Motor Control		655,888		94
Rain Detector		305,565		112	*
Simple Lie Detector		565,552		323
Simple Polarity Tester	Dudley LeRoux	166,266		13	*
Simple Servo Controller		222,330		22	*
Simple Touch Switch NEW!		170,760		6	*
Simple Two Speed Contactor DC Motor Controller		206,084		21	*
Stepper Motor Controller		747,106		120	*
Time Delay Relay		556,557		88
Time Delay Relay II	jawaharlal@excite.com	247,950		39	*
Touch Switch		290,620		51	*
Video Activated Relay		122,613		8	*
Video Stabilizer/MacroVision Removal	Antti Paarlahti	182,183		10	*
Water Detector With Sump/Bilge Pump Controller		153,665		18	*
Wire Loop Alarm	Alex Meaden	206,554		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!		317,084		25	*
12VDC To 120VAC Inverter		1,531,959		691
6V to 12V Converter		528,581		121
Automatic 12V Lead Acid Battery Charger		938,273		248
Automatic Load Sensing Power Switch		168,293		16	*
Car Battery Charger		884,229		159	*
Dual Polarity Power Supply		372,175		84	*
Fixed Voltage Power Supply		312,163		52	*
High Current Power Supply		340,049		66	*
High Voltage High Current Power Supply		264,937		35	*
LASER Power Supply		297,152		28
Portable CD Player Adapter For Car		213,285		12	*
Power Supply		740,067		259	*
Solid State Tesla Coil NEW!		147,357		4
Solid State Tesla Coil/High Voltage Generator		445,470		51
Transformerless Power Supply		464,106		117	*
Voltage Inverter		340,143		51	*
Voltage Inverter II		204,113		19	*

Sound/Radio

Back to the top of this document

Detailed View: On/Off
Circuit	Author	Views	Rank	Comments	Marker
22 Watt Audio Amplifier		586,422		182
3 Watt FM Transmitter	Rae XL Tkacik	336,377		83	*
50 Watt Amplifier		508,859		74
8 Note Tune Player		141,559		12	*
8 Watt Audio Amp		374,043		67	*
Aircraft Radio Communications Receiver		279,578		49	*
Crystal Radio		159,857		53	*
Digital Volume Control		339,487		47	*
Electronic Stethoscope		322,254		142	*
FET Audio Mixer		344,576		41
FM Transmitter		1,009,584		420
Guitar Fuzz Effect		248,645		54	*
Microphone Mixer	Anatoly I. Shikhatov	251,572		26	*
Mono To Stereo Synthesizer	oRbEq	134,780		18	*
One Tube Regenerative Radio NEW!		143,462		4	*
Op Amp Radio		390,005		80	*
Single Chip AM Radio NEW!		100,734		3	*
Single Chip FM Radio NEW!		173,642		1	*
Sound Level Meter		343,000		51	*
Stereo Tube Amplifier	Weslee Kinsler	269,312		15	*
Tone Control		310,753		31
Transistor Organ		200,691		28

Telephone

Back to the top of this document

Detailed View: On/Off
Circuit	Author	Views	Rank	Comments	Marker
Cut Phone Line Detector		164,479		27	*
FM Telephone Bug		236,287		57
Phone Busy Indicator		214,866		24	*
Remote Telephone Ringer		119,174		3	*
Ringing Phone Light Flasher		219,388		35	*
Simple Phone Tap	Derek Tombrello	384,536		98	*
Telephone Hold Button		130,005		10
Telephone Recorder		217,540		55	*

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.