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, October 06, 2022	50 Watt Amplifier	12
	Op Amp Radio	12
Yesterday Wednesday, October 05, 2022	12VDC To 120VAC Inverter	33
	One Tube Regenerative Radio	31
Of All Time	12VDC To 120VAC Inverter	1,505,930
	FM Transmitter	995,045

Auto	Back to the top of this document

Detailed View: On/Off
Circuit	Author	Views	Rank	Comments	Marker
Automatic Headlight Brightness Switch		222,767		61	*
Car Alarm Arming Horn Beep Canceller	bob	132,742		6	*
Wireless Auto Tachometer		337,891		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	156,288		29	*
Parallel (Printer) Port Interface		279,643		71

Light/Laser

Back to the top of this document

Detailed View: On/Off
Circuit	Author	Views	Rank	Comments	Marker
12VDC Fluorescent Lamp Driver		441,539		63	*
3 Channel Spectrum Analyzer		216,228		20
40W Fluorescent Lamp Inverter	Bart Milnes	325,388		60	*
Adjustable Strobe Light		303,313		36
Black Light		272,179		29
Colour (Sound) Organ		284,861		36
Electronic Dice NEW!		184,360		10	*
Fantastic Atom Expander		198,997		25
Flash Slave Trigger		215,921		18	*
Infa-Red Remote Control		628,352		216	*
IR Remote Extender NEW!		127,581		2	*
IR Remote Jammer	Carl	260,008		110	*
IR Remote Switch NEW!		153,599		9	*
LASER Transmitter/Receiver		407,793		92
LED Chaser		439,509		83	*
LED Metronome NEW!		95,891		3	*
LED Thermometer		202,769		22	*
Light/Dark Detector		302,075		90	*
Simple Colour Organ		133,936		11	*
Strobe Light		271,049		27	*
TRIAC Light Dimmer		545,203		55

Major Projects

Back to the top of this document

Detailed View: On/Off
Circuit	Author	Views	Rank	Comments	Marker
Computerize Your Room/Home		354,260		122	*
Electromagnetic Levitator NEW!		140,000		15	*

Other

Back to the top of this document

Detailed View: On/Off
Circuit	Author	Views	Rank	Comments	Marker
7 Segment LED Counter		915,245		214	*
AC Motor Speed Controller		382,443		29	*
Air Flow Detector		247,451		54	*
Digital Keypad Combination Lock		192,746		20
Low Voltage Alarm		224,962		58	*
Pine Racecar Victory Judge		99,539		1	*
Pulse Width Modulation DC Motor Control		642,780		94
Rain Detector		300,370		112	*
Simple Lie Detector		555,239		323
Simple Polarity Tester	Dudley LeRoux	161,087		13	*
Simple Servo Controller		216,846		22	*
Simple Touch Switch NEW!		165,422		5	*
Simple Two Speed Contactor DC Motor Controller		200,628		21	*
Stepper Motor Controller		737,436		120	*
Time Delay Relay		550,260		88
Time Delay Relay II	jawaharlal@excite.com	241,045		39	*
Touch Switch		285,054		51	*
Video Activated Relay		118,025		8	*
Video Stabilizer/MacroVision Removal	Antti Paarlahti	175,647		10	*
Water Detector With Sump/Bilge Pump Controller		148,732		18	*
Wire Loop Alarm	Alex Meaden	201,791		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!		307,757		25	*
12VDC To 120VAC Inverter		1,505,930		691
6V to 12V Converter		519,738		121
Automatic 12V Lead Acid Battery Charger		928,801		248
Automatic Load Sensing Power Switch		162,728		16	*
Car Battery Charger		875,301		159	*
Dual Polarity Power Supply		365,668		84	*
Fixed Voltage Power Supply		305,881		52	*
High Current Power Supply		331,581		66	*
High Voltage High Current Power Supply		247,998		35	*
LASER Power Supply		290,196		28
Portable CD Player Adapter For Car		207,657		12	*
Power Supply		731,047		259	*
Solid State Tesla Coil NEW!		140,786		4
Solid State Tesla Coil/High Voltage Generator		436,502		51
Transformerless Power Supply		457,537		117	*
Voltage Inverter		331,882		51	*
Voltage Inverter II		197,112		19	*

Sound/Radio

Back to the top of this document

Detailed View: On/Off
Circuit	Author	Views	Rank	Comments	Marker
22 Watt Audio Amplifier		579,691		182
3 Watt FM Transmitter	Rae XL Tkacik	328,237		83	*
50 Watt Amplifier		501,242		74
8 Note Tune Player		137,043		12	*
8 Watt Audio Amp		366,125		67	*
Aircraft Radio Communications Receiver		271,487		49	*
Crystal Radio		154,727		53	*
Digital Volume Control		327,766		47	*
Electronic Stethoscope		308,814		142	*
FET Audio Mixer		337,824		41
FM Transmitter		995,045		420
Guitar Fuzz Effect		241,185		54	*
Microphone Mixer	Anatoly I. Shikhatov	245,545		26	*
Mono To Stereo Synthesizer	oRbEq	128,781		18	*
One Tube Regenerative Radio NEW!		132,315		4	*
Op Amp Radio		380,605		80	*
Single Chip AM Radio NEW!		95,764		2	*
Single Chip FM Radio NEW!		166,347		1	*
Sound Level Meter		336,346		51	*
Stereo Tube Amplifier	Weslee Kinsler	263,033		15	*
Tone Control		304,411		31
Transistor Organ		194,049		28

Telephone

Back to the top of this document

Detailed View: On/Off
Circuit	Author	Views	Rank	Comments	Marker
Cut Phone Line Detector		160,086		27	*
FM Telephone Bug		232,057		57
Phone Busy Indicator		210,361		24	*
Remote Telephone Ringer		114,983		3	*
Ringing Phone Light Flasher		211,757		35	*
Simple Phone Tap	Derek Tombrello	379,644		98	*
Telephone Hold Button		125,270		10
Telephone Recorder		212,657		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.