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 Thursday, April 25, 2024	Parallel (Printer) Port Interface	22
	Stepper Motor Controller	20
Yesterday Wednesday, April 24, 2024	12VDC To 120VAC Inverter	52
	FM Transmitter	33
Of All Time	12VDC To 120VAC Inverter	1,531,666
	FM Transmitter	1,009,377

Auto	Back to the top of this document

Detailed View: On/Off
Circuit	Author	Views	Rank	Comments	Marker
Automatic Headlight Brightness Switch		227,638		61	*
Car Alarm Arming Horn Beep Canceller	bob	137,217		6	*
Wireless Auto Tachometer		343,762		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	160,513		29	*
Parallel (Printer) Port Interface		286,596		71

Light/Laser

Back to the top of this document

Detailed View: On/Off
Circuit	Author	Views	Rank	Comments	Marker
12VDC Fluorescent Lamp Driver		448,413		63	*
3 Channel Spectrum Analyzer		222,504		20
40W Fluorescent Lamp Inverter	Bart Milnes	330,877		60	*
Adjustable Strobe Light		309,774		36
Black Light		281,479		29
Colour (Sound) Organ		291,440		36
Electronic Dice NEW!		189,930		10	*
Fantastic Atom Expander		203,682		25
Flash Slave Trigger		221,943		18	*
Infa-Red Remote Control		637,981		216	*
IR Remote Extender NEW!		133,448		3	*
IR Remote Jammer	Carl	266,925		110	*
IR Remote Switch NEW!		158,382		9	*
LASER Transmitter/Receiver		417,295		92
LED Chaser		446,783		83	*
LED Metronome NEW!		100,159		3	*
LED Thermometer		207,487		22	*
Light/Dark Detector		306,885		90	*
Simple Colour Organ		138,217		11	*
Strobe Light		276,596		27	*
TRIAC Light Dimmer		553,630		55

Major Projects

Back to the top of this document

Detailed View: On/Off
Circuit	Author	Views	Rank	Comments	Marker
Computerize Your Room/Home		360,137		122	*
Electromagnetic Levitator NEW!		145,145		15	*

Other

Back to the top of this document

Detailed View: On/Off
Circuit	Author	Views	Rank	Comments	Marker
7 Segment LED Counter		923,106		214	*
AC Motor Speed Controller		392,273		29	*
Air Flow Detector		252,547		54	*
Digital Keypad Combination Lock		203,053		20
Low Voltage Alarm		230,017		58	*
Pine Racecar Victory Judge		103,418		1	*
Pulse Width Modulation DC Motor Control		655,750		94
Rain Detector		305,469		112	*
Simple Lie Detector		565,454		323
Simple Polarity Tester	Dudley LeRoux	166,202		13	*
Simple Servo Controller		222,245		22	*
Simple Touch Switch NEW!		170,677		6	*
Simple Two Speed Contactor DC Motor Controller		206,009		21	*
Stepper Motor Controller		746,921		120	*
Time Delay Relay		556,450		88
Time Delay Relay II	jawaharlal@excite.com	247,842		39	*
Touch Switch		290,540		51	*
Video Activated Relay		122,544		8	*
Video Stabilizer/MacroVision Removal	Antti Paarlahti	182,095		10	*
Water Detector With Sump/Bilge Pump Controller		153,586		18	*
Wire Loop Alarm	Alex Meaden	206,487		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!		316,934		25	*
12VDC To 120VAC Inverter		1,531,666		691
6V to 12V Converter		528,443		121
Automatic 12V Lead Acid Battery Charger		938,147		248
Automatic Load Sensing Power Switch		168,190		16	*
Car Battery Charger		884,104		159	*
Dual Polarity Power Supply		372,075		84	*
Fixed Voltage Power Supply		312,068		52	*
High Current Power Supply		339,919		66	*
High Voltage High Current Power Supply		264,858		35	*
LASER Power Supply		297,055		28
Portable CD Player Adapter For Car		213,211		12	*
Power Supply		739,432		259	*
Solid State Tesla Coil NEW!		147,271		4
Solid State Tesla Coil/High Voltage Generator		445,348		51
Transformerless Power Supply		463,988		117	*
Voltage Inverter		339,974		51	*
Voltage Inverter II		203,994		19	*

Sound/Radio

Back to the top of this document

Detailed View: On/Off
Circuit	Author	Views	Rank	Comments	Marker
22 Watt Audio Amplifier		586,308		182
3 Watt FM Transmitter	Rae XL Tkacik	336,263		83	*
50 Watt Amplifier		508,724		74
8 Note Tune Player		141,486		12	*
8 Watt Audio Amp		373,870		67	*
Aircraft Radio Communications Receiver		279,458		49	*
Crystal Radio		159,763		53	*
Digital Volume Control		339,400		47	*
Electronic Stethoscope		322,140		142	*
FET Audio Mixer		344,491		41
FM Transmitter		1,009,377		420
Guitar Fuzz Effect		248,529		54	*
Microphone Mixer	Anatoly I. Shikhatov	251,491		26	*
Mono To Stereo Synthesizer	oRbEq	134,690		18	*
One Tube Regenerative Radio NEW!		143,314		4	*
Op Amp Radio		389,851		80	*
Single Chip AM Radio NEW!		100,650		3	*
Single Chip FM Radio NEW!		173,549		1	*
Sound Level Meter		342,897		51	*
Stereo Tube Amplifier	Weslee Kinsler	269,228		15	*
Tone Control		310,660		31
Transistor Organ		200,589		28

Telephone

Back to the top of this document

Detailed View: On/Off
Circuit	Author	Views	Rank	Comments	Marker
Cut Phone Line Detector		164,420		27	*
FM Telephone Bug		236,232		57
Phone Busy Indicator		214,784		24	*
Remote Telephone Ringer		119,112		3	*
Ringing Phone Light Flasher		219,302		35	*
Simple Phone Tap	Derek Tombrello	384,462		98	*
Telephone Hold Button		129,921		10
Telephone Recorder		217,468		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.