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, December 10, 2023	Automatic 12V Lead Acid Battery Charger	129
	12VDC To 120VAC Inverter	70
Yesterday Saturday, December 09, 2023	12VDC To 120VAC Inverter	39
	One Tube Regenerative Radio	37
Of All Time	12VDC To 120VAC Inverter	1,525,745
	FM Transmitter	1,005,978

Auto	Back to the top of this document

Detailed View: On/Off
Circuit	Author	Views	Rank	Comments	Marker
Automatic Headlight Brightness Switch		226,606		61	*
Car Alarm Arming Horn Beep Canceller	bob	136,346		6	*
Wireless Auto Tachometer		342,617		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	159,653		29	*
Parallel (Printer) Port Interface		285,109		71

Light/Laser

Back to the top of this document

Detailed View: On/Off
Circuit	Author	Views	Rank	Comments	Marker
12VDC Fluorescent Lamp Driver		446,909		63	*
3 Channel Spectrum Analyzer		221,026		20
40W Fluorescent Lamp Inverter	Bart Milnes	329,730		60	*
Adjustable Strobe Light		308,483		36
Black Light		279,453		29
Colour (Sound) Organ		289,895		36
Electronic Dice NEW!		188,735		10	*
Fantastic Atom Expander		202,692		25
Flash Slave Trigger		220,914		18	*
Infa-Red Remote Control		636,519		216	*
IR Remote Extender NEW!		132,281		3	*
IR Remote Jammer	Carl	265,125		110	*
IR Remote Switch NEW!		157,372		9	*
LASER Transmitter/Receiver		415,012		92
LED Chaser		445,178		83	*
LED Metronome NEW!		99,126		3	*
LED Thermometer		206,423		22	*
Light/Dark Detector		305,827		90	*
Simple Colour Organ		137,353		11	*
Strobe Light		275,005		27	*
TRIAC Light Dimmer		551,551		55

Major Projects

Back to the top of this document

Detailed View: On/Off
Circuit	Author	Views	Rank	Comments	Marker
Computerize Your Room/Home		358,855		122	*
Electromagnetic Levitator NEW!		144,081		15	*

Other

Back to the top of this document

Detailed View: On/Off
Circuit	Author	Views	Rank	Comments	Marker
7 Segment LED Counter		921,370		214	*
AC Motor Speed Controller		390,028		29	*
Air Flow Detector		251,397		54	*
Digital Keypad Combination Lock		202,009		20
Low Voltage Alarm		228,859		58	*
Pine Racecar Victory Judge		102,591		1	*
Pulse Width Modulation DC Motor Control		654,045		94
Rain Detector		304,314		112	*
Simple Lie Detector		563,649		323
Simple Polarity Tester	Dudley LeRoux	165,157		13	*
Simple Servo Controller		221,028		22	*
Simple Touch Switch NEW!		169,429		6	*
Simple Two Speed Contactor DC Motor Controller		204,702		21	*
Stepper Motor Controller		744,338		120	*
Time Delay Relay		554,982		88
Time Delay Relay II	jawaharlal@excite.com	246,345		39	*
Touch Switch		289,285		51	*
Video Activated Relay		121,551		8	*
Video Stabilizer/MacroVision Removal	Antti Paarlahti	180,413		10	*
Water Detector With Sump/Bilge Pump Controller		152,494		18	*
Wire Loop Alarm	Alex Meaden	205,473		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!		314,627		25	*
12VDC To 120VAC Inverter		1,525,745		691
6V to 12V Converter		526,341		121
Automatic 12V Lead Acid Battery Charger		936,058		248
Automatic Load Sensing Power Switch		166,912		16	*
Car Battery Charger		882,260		159	*
Dual Polarity Power Supply		370,497		84	*
Fixed Voltage Power Supply		310,734		52	*
High Current Power Supply		337,530		66	*
High Voltage High Current Power Supply		252,294		35	*
LASER Power Supply		295,471		28
Portable CD Player Adapter For Car		212,067		12	*
Power Supply		737,602		259	*
Solid State Tesla Coil NEW!		145,556		4
Solid State Tesla Coil/High Voltage Generator		443,237		51
Transformerless Power Supply		462,470		117	*
Voltage Inverter		337,352		51	*
Voltage Inverter II		202,071		19	*

Sound/Radio

Back to the top of this document

Detailed View: On/Off
Circuit	Author	Views	Rank	Comments	Marker
22 Watt Audio Amplifier		584,643		182
3 Watt FM Transmitter	Rae XL Tkacik	334,377		83	*
50 Watt Amplifier		506,936		74
8 Note Tune Player		140,503		12	*
8 Watt Audio Amp		371,789		67	*
Aircraft Radio Communications Receiver		277,604		49	*
Crystal Radio		158,410		53	*
Digital Volume Control		337,798		47	*
Electronic Stethoscope		320,496		142	*
FET Audio Mixer		342,969		41
FM Transmitter		1,005,978		420
Guitar Fuzz Effect		246,568		54	*
Microphone Mixer	Anatoly I. Shikhatov	250,101		26	*
Mono To Stereo Synthesizer	oRbEq	133,236		18	*
One Tube Regenerative Radio NEW!		139,726		4	*
Op Amp Radio		387,412		80	*
Single Chip AM Radio NEW!		99,432		3	*
Single Chip FM Radio NEW!		171,954		1	*
Sound Level Meter		341,405		51	*
Stereo Tube Amplifier	Weslee Kinsler	267,776		15	*
Tone Control		309,390		31
Transistor Organ		198,991		28

Telephone

Back to the top of this document

Detailed View: On/Off
Circuit	Author	Views	Rank	Comments	Marker
Cut Phone Line Detector		163,465		27	*
FM Telephone Bug		235,403		57
Phone Busy Indicator		213,851		24	*
Remote Telephone Ringer		118,264		3	*
Ringing Phone Light Flasher		217,431		35	*
Simple Phone Tap	Derek Tombrello	383,444		98	*
Telephone Hold Button		128,999		10
Telephone Recorder		216,324		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.