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, March 20, 2019	12VDC Fluorescent Lamp Driver	28
	AC Motor Speed Controller	23
Yesterday Tuesday, March 19, 2019	12VDC To 120VAC Inverter	86
	FM Transmitter	70
Of All Time	12VDC To 120VAC Inverter	1,431,701
	FM Transmitter	947,430

Auto	Back to the top of this document

Detailed View: On/Off
Circuit	Author	Views	Rank	Comments	Marker
Automatic Headlight Brightness Switch		196,733		61	*
Car Alarm Arming Horn Beep Canceller	bob	107,905		6	*
Wireless Auto Tachometer		305,216		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	136,931		29	*
Parallel (Printer) Port Interface		244,663		71

Light/Laser

Back to the top of this document

Detailed View: On/Off
Circuit	Author	Views	Rank	Comments	Marker
12VDC Fluorescent Lamp Driver		401,425		63	*
3 Channel Spectrum Analyzer		192,008		20
40W Fluorescent Lamp Inverter	Bart Milnes	296,627		60	*
Adjustable Strobe Light		271,678		36
Black Light		233,233		29
Colour (Sound) Organ		254,440		36
Electronic Dice NEW!		157,036		10	*
Fantastic Atom Expander		168,924		25
Flash Slave Trigger		188,084		18	*
Infa-Red Remote Control		592,727		216	*
IR Remote Extender NEW!		97,921		2	*
IR Remote Jammer	Carl	231,615		110	*
IR Remote Switch NEW!		127,850		9	*
LASER Transmitter/Receiver		371,602		92
LED Chaser		413,865		83	*
LED Metronome NEW!		83,688		3	*
LED Thermometer		181,585		22	*
Light/Dark Detector		279,602		90	*
Simple Colour Organ		115,940		10	*
Strobe Light		248,678		27	*
TRIAC Light Dimmer		462,502		55

Major Projects

Back to the top of this document

Detailed View: On/Off
Circuit	Author	Views	Rank	Comments	Marker
Computerize Your Room/Home		319,532		122	*
Electromagnetic Levitator NEW!		118,742		15	*

Other

Back to the top of this document

Detailed View: On/Off
Circuit	Author	Views	Rank	Comments	Marker
7 Segment LED Counter		870,990		214	*
AC Motor Speed Controller		349,429		29	*
Air Flow Detector		225,847		54	*
Digital Keypad Combination Lock		169,902		20
Low Voltage Alarm		199,773		58	*
Pine Racecar Victory Judge		80,511		1	*
Pulse Width Modulation DC Motor Control		616,540		93
Rain Detector		279,346		112	*
Simple Lie Detector		527,153		323
Simple Polarity Tester	Dudley LeRoux	134,386		13	*
Simple Servo Controller		192,002		22	*
Simple Touch Switch NEW!		145,029		5	*
Simple Two Speed Contactor DC Motor Controller		179,554		21	*
Stepper Motor Controller		700,779		120	*
Time Delay Relay		521,229		88
Time Delay Relay II	jawaharlal@excite.com	211,794		39	*
Touch Switch		262,354		51	*
Video Activated Relay		99,447		8	*
Video Stabilizer/MacroVision Removal	Antti Paarlahti	152,393		10	*
Water Detector With Sump/Bilge Pump Controller		125,001		18	*
Wire Loop Alarm	Alex Meaden	181,875		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!		277,904		25	*
12VDC To 120VAC Inverter		1,431,701		688
6V to 12V Converter		460,381		121
Automatic 12V Lead Acid Battery Charger		884,451		246
Automatic Load Sensing Power Switch		138,430		16	*
Car Battery Charger		837,842		159	*
Dual Polarity Power Supply		345,141		84	*
Fixed Voltage Power Supply		282,572		52	*
High Current Power Supply		301,757		65	*
High Voltage High Current Power Supply		226,079		35	*
LASER Power Supply		261,255		28
Portable CD Player Adapter For Car		184,314		12	*
Power Supply		697,436		259	*
Solid State Tesla Coil NEW!		122,706		4
Solid State Tesla Coil/High Voltage Generator		398,336		50
Transformerless Power Supply		424,869		117	*
Voltage Inverter		307,973		51	*
Voltage Inverter II		176,633		19	*

Sound/Radio

Back to the top of this document

Detailed View: On/Off
Circuit	Author	Views	Rank	Comments	Marker
22 Watt Audio Amplifier		552,258		182
3 Watt FM Transmitter	Rae XL Tkacik	301,375		82	*
50 Watt Amplifier		471,825		74
8 Note Tune Player		118,703		12	*
8 Watt Audio Amp		336,266		67	*
Aircraft Radio Communications Receiver		239,874		49	*
Crystal Radio		140,414		53	*
Digital Volume Control		301,934		47	*
Electronic Stethoscope		279,580		141	*
FET Audio Mixer		311,032		41
FM Transmitter		947,430		419
Guitar Fuzz Effect		213,186		52	*
Microphone Mixer	Anatoly I. Shikhatov	220,270		26	*
Mono To Stereo Synthesizer	oRbEq	104,362		18	*
One Tube Regenerative Radio NEW!		109,699		4	*
Op Amp Radio		350,346		80	*
Single Chip AM Radio NEW!		82,903		2	*
Single Chip FM Radio NEW!		140,061		1	*
Sound Level Meter		310,508		51	*
Stereo Tube Amplifier	Weslee Kinsler	238,226		15	*
Tone Control		274,921		31
Transistor Organ		168,274		28

Telephone

Back to the top of this document

Detailed View: On/Off
Circuit	Author	Views	Rank	Comments	Marker
Cut Phone Line Detector		140,651		27	*
FM Telephone Bug		209,626		57
Phone Busy Indicator		189,424		24	*
Remote Telephone Ringer		96,354		3	*
Ringing Phone Light Flasher		186,268		34	*
Simple Phone Tap	Derek Tombrello	335,624		98	*
Telephone Hold Button		103,293		10
Telephone Recorder		187,338		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.