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 Wednesday, April 24, 2024	12VDC To 120VAC Inverter	37
	FM Transmitter	24
Yesterday Tuesday, April 23, 2024	12VDC To 120VAC Inverter	41
	Infa-Red Remote Control	36
Of All Time	12VDC To 120VAC Inverter	1,531,632
	FM Transmitter	1,009,359

Auto	Back to the top of this document

Detailed View: On/Off
Circuit	Author	Views	Rank	Comments	Marker
Automatic Headlight Brightness Switch		227,630		61	*
Car Alarm Arming Horn Beep Canceller	bob	137,211		6	*
Wireless Auto Tachometer		343,754		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	160,507		29	*
Parallel (Printer) Port Interface		286,570		71

Light/Laser

Back to the top of this document

Detailed View: On/Off
Circuit	Author	Views	Rank	Comments	Marker
12VDC Fluorescent Lamp Driver		448,409		63	*
3 Channel Spectrum Analyzer		222,496		20
40W Fluorescent Lamp Inverter	Bart Milnes	330,864		60	*
Adjustable Strobe Light		309,767		36
Black Light		281,467		29
Colour (Sound) Organ		291,429		36
Electronic Dice NEW!		189,926		10	*
Fantastic Atom Expander		203,672		25
Flash Slave Trigger		221,936		18	*
Infa-Red Remote Control		637,972		216	*
IR Remote Extender NEW!		133,442		3	*
IR Remote Jammer	Carl	266,916		110	*
IR Remote Switch NEW!		158,371		9	*
LASER Transmitter/Receiver		417,286		92
LED Chaser		446,777		83	*
LED Metronome NEW!		100,151		3	*
LED Thermometer		207,478		22	*
Light/Dark Detector		306,877		90	*
Simple Colour Organ		138,212		11	*
Strobe Light		276,586		27	*
TRIAC Light Dimmer		553,618		55

Major Projects

Back to the top of this document

Detailed View: On/Off
Circuit	Author	Views	Rank	Comments	Marker
Computerize Your Room/Home		360,125		122	*
Electromagnetic Levitator NEW!		145,139		15	*

Other

Back to the top of this document

Detailed View: On/Off
Circuit	Author	Views	Rank	Comments	Marker
7 Segment LED Counter		923,096		214	*
AC Motor Speed Controller		392,249		29	*
Air Flow Detector		252,537		54	*
Digital Keypad Combination Lock		203,046		20
Low Voltage Alarm		230,011		58	*
Pine Racecar Victory Judge		103,410		1	*
Pulse Width Modulation DC Motor Control		655,740		94
Rain Detector		305,461		112	*
Simple Lie Detector		565,439		323
Simple Polarity Tester	Dudley LeRoux	166,194		13	*
Simple Servo Controller		222,235		22	*
Simple Touch Switch NEW!		170,668		6	*
Simple Two Speed Contactor DC Motor Controller		205,998		21	*
Stepper Motor Controller		746,892		120	*
Time Delay Relay		556,443		88
Time Delay Relay II	jawaharlal@excite.com	247,830		39	*
Touch Switch		290,532		51	*
Video Activated Relay		122,538		8	*
Video Stabilizer/MacroVision Removal	Antti Paarlahti	182,085		10	*
Water Detector With Sump/Bilge Pump Controller		153,579		18	*
Wire Loop Alarm	Alex Meaden	206,481		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!		316,921		25	*
12VDC To 120VAC Inverter		1,531,632		691
6V to 12V Converter		528,428		121
Automatic 12V Lead Acid Battery Charger		938,132		248
Automatic Load Sensing Power Switch		168,182		16	*
Car Battery Charger		884,092		159	*
Dual Polarity Power Supply		372,063		84	*
Fixed Voltage Power Supply		312,056		52	*
High Current Power Supply		339,904		66	*
High Voltage High Current Power Supply		264,846		35	*
LASER Power Supply		297,038		28
Portable CD Player Adapter For Car		213,205		12	*
Power Supply		739,425		259	*
Solid State Tesla Coil NEW!		147,259		4
Solid State Tesla Coil/High Voltage Generator		445,339		51
Transformerless Power Supply		463,982		117	*
Voltage Inverter		339,958		51	*
Voltage Inverter II		203,979		19	*

Sound/Radio

Back to the top of this document

Detailed View: On/Off
Circuit	Author	Views	Rank	Comments	Marker
22 Watt Audio Amplifier		586,300		182
3 Watt FM Transmitter	Rae XL Tkacik	336,247		83	*
50 Watt Amplifier		508,710		74
8 Note Tune Player		141,480		12	*
8 Watt Audio Amp		373,849		67	*
Aircraft Radio Communications Receiver		279,444		49	*
Crystal Radio		159,751		53	*
Digital Volume Control		339,387		47	*
Electronic Stethoscope		322,136		142	*
FET Audio Mixer		344,481		41
FM Transmitter		1,009,359		420
Guitar Fuzz Effect		248,522		54	*
Microphone Mixer	Anatoly I. Shikhatov	251,483		26	*
Mono To Stereo Synthesizer	oRbEq	134,670		18	*
One Tube Regenerative Radio NEW!		143,297		4	*
Op Amp Radio		389,839		80	*
Single Chip AM Radio NEW!		100,640		3	*
Single Chip FM Radio NEW!		173,540		1	*
Sound Level Meter		342,889		51	*
Stereo Tube Amplifier	Weslee Kinsler	269,212		15	*
Tone Control		310,651		31
Transistor Organ		200,578		28

Telephone

Back to the top of this document

Detailed View: On/Off
Circuit	Author	Views	Rank	Comments	Marker
Cut Phone Line Detector		164,411		27	*
FM Telephone Bug		236,221		57
Phone Busy Indicator		214,777		24	*
Remote Telephone Ringer		119,103		3	*
Ringing Phone Light Flasher		219,290		35	*
Simple Phone Tap	Derek Tombrello	384,454		98	*
Telephone Hold Button		129,912		10
Telephone Recorder		217,461		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.