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 Sunday, November 17, 2019	Stepper Motor Controller	45
	Wireless Auto Tachometer	43
Yesterday Saturday, November 16, 2019	6V to 12V Converter	5,400
	6V to 12V Converter	5,400
Of All Time	12VDC To 120VAC Inverter	1,451,781
	FM Transmitter	959,346

Auto	Back to the top of this document

Detailed View: On/Off
Circuit	Author	Views	Rank	Comments	Marker
Automatic Headlight Brightness Switch		201,677		61	*
Car Alarm Arming Horn Beep Canceller	bob	112,747		6	*
Wireless Auto Tachometer		313,487		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	140,958		29	*
Parallel (Printer) Port Interface		253,536		71

Light/Laser

Back to the top of this document

Detailed View: On/Off
Circuit	Author	Views	Rank	Comments	Marker
12VDC Fluorescent Lamp Driver		410,006		63	*
3 Channel Spectrum Analyzer		196,950		20
40W Fluorescent Lamp Inverter	Bart Milnes	303,162		60	*
Adjustable Strobe Light		277,930		36
Black Light		241,251		29
Colour (Sound) Organ		260,475		36
Electronic Dice NEW!		162,785		10	*
Fantastic Atom Expander		175,089		25
Flash Slave Trigger		193,340		18	*
Infa-Red Remote Control		599,837		216	*
IR Remote Extender NEW!		104,222		2	*
IR Remote Jammer	Carl	236,962		110	*
IR Remote Switch NEW!		133,266		9	*
LASER Transmitter/Receiver		378,792		92
LED Chaser		419,650		83	*
LED Metronome NEW!		86,634		3	*
LED Thermometer		186,168		22	*
Light/Dark Detector		284,140		90	*
Simple Colour Organ		119,319		10	*
Strobe Light		252,866		27	*
TRIAC Light Dimmer		471,735		55

Major Projects

Back to the top of this document

Detailed View: On/Off
Circuit	Author	Views	Rank	Comments	Marker
Computerize Your Room/Home		326,862		122	*
Electromagnetic Levitator NEW!		123,207		15	*

Other

Back to the top of this document

Detailed View: On/Off
Circuit	Author	Views	Rank	Comments	Marker
7 Segment LED Counter		882,955		214	*
AC Motor Speed Controller		357,928		29	*
Air Flow Detector		230,301		54	*
Digital Keypad Combination Lock		175,862		20
Low Voltage Alarm		204,540		58	*
Pine Racecar Victory Judge		85,334		1	*
Pulse Width Modulation DC Motor Control		622,384		94
Rain Detector		283,709		112	*
Simple Lie Detector		534,835		323
Simple Polarity Tester	Dudley LeRoux	139,819		13	*
Simple Servo Controller		198,803		22	*
Simple Touch Switch NEW!		148,969		5	*
Simple Two Speed Contactor DC Motor Controller		184,014		21	*
Stepper Motor Controller		709,603		120	*
Time Delay Relay		528,478		88
Time Delay Relay II	jawaharlal@excite.com	217,986		39	*
Touch Switch		266,893		51	*
Video Activated Relay		102,980		8	*
Video Stabilizer/MacroVision Removal	Antti Paarlahti	157,723		10	*
Water Detector With Sump/Bilge Pump Controller		128,858		18	*
Wire Loop Alarm	Alex Meaden	185,890		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!		286,289		25	*
12VDC To 120VAC Inverter		1,451,781		689
6V to 12V Converter		479,554		121
Automatic 12V Lead Acid Battery Charger		896,626		247
Automatic Load Sensing Power Switch		143,294		16	*
Car Battery Charger		848,220		159	*
Dual Polarity Power Supply		350,592		84	*
Fixed Voltage Power Supply		287,257		52	*
High Current Power Supply		309,197		65	*
High Voltage High Current Power Supply		230,468		35	*
LASER Power Supply		269,295		28
Portable CD Player Adapter For Car		188,813		12	*
Power Supply		706,867		259	*
Solid State Tesla Coil NEW!		126,902		4
Solid State Tesla Coil/High Voltage Generator		407,993		50
Transformerless Power Supply		436,468		117	*
Voltage Inverter		312,669		51	*
Voltage Inverter II		180,356		19	*

Sound/Radio

Back to the top of this document

Detailed View: On/Off
Circuit	Author	Views	Rank	Comments	Marker
22 Watt Audio Amplifier		558,220		182
3 Watt FM Transmitter	Rae XL Tkacik	306,974		82	*
50 Watt Amplifier		479,080		74
8 Note Tune Player		122,135		12	*
8 Watt Audio Amp		343,714		67	*
Aircraft Radio Communications Receiver		247,378		49	*
Crystal Radio		144,938		53	*
Digital Volume Control		308,327		47	*
Electronic Stethoscope		285,768		141	*
FET Audio Mixer		316,520		41
FM Transmitter		959,346		419
Guitar Fuzz Effect		220,302		52	*
Microphone Mixer	Anatoly I. Shikhatov	227,062		26	*
Mono To Stereo Synthesizer	oRbEq	110,066		18	*
One Tube Regenerative Radio NEW!		115,667		4	*
Op Amp Radio		356,738		80	*
Single Chip AM Radio NEW!		85,879		2	*
Single Chip FM Radio NEW!		147,153		1	*
Sound Level Meter		317,564		51	*
Stereo Tube Amplifier	Weslee Kinsler	244,866		15	*
Tone Control		282,230		31
Transistor Organ		174,444		28

Telephone

Back to the top of this document

Detailed View: On/Off
Circuit	Author	Views	Rank	Comments	Marker
Cut Phone Line Detector		144,410		27	*
FM Telephone Bug		216,150		57
Phone Busy Indicator		194,970		24	*
Remote Telephone Ringer		99,630		3	*
Ringing Phone Light Flasher		191,517		35	*
Simple Phone Tap	Derek Tombrello	343,437		98	*
Telephone Hold Button		109,276		10
Telephone Recorder		192,936		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.