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
Tuesday, April 13, 2010 12VDC To 120VAC Inverter 323
Automatic 12V Lead Acid Battery Charger 217
Yesterday
Monday, April 12, 2010 12VDC To 120VAC Inverter 640
Automatic 12V Lead Acid Battery Charger 422
Of All Time 12VDC To 120VAC Inverter 654,735
FM Transmitter 473,878
Auto Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Automatic Headlight Brightness Switch 96,881 52 *
Car Alarm Arming Horn Beep Canceller bob 44,831 6 *
Wireless Auto Tachometer 153,068 52
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 64,967 29 *
Parallel (Printer) Port Interface 132,403 69
Light/Laser Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
12VDC Fluorescent Lamp Driver 189,571 56 *
3 Channel Spectrum Analyzer 62,938 12
40W Fluorescent Lamp Inverter Bart Milnes 139,130 58 *
Adjustable Strobe Light 118,510 28
Black Light 113,790 28
Colour (Sound) Organ 125,319 29
Electronic Dice NEW! 26,152 2 *
Fantastic Atom Expander 73,054 22
Flash Slave Trigger 94,214 15 *
Infa-Red Remote Control 278,016 208 *
IR Remote Extender NEW! 9,888 0 *
IR Remote Jammer Carl 104,999 99 *
IR Remote Switch NEW! 12,943 4 *
LASER Transmitter/Receiver 167,109 85
LED Chaser 172,236 79 *
LED Metronome NEW! 9,832 2 *
LED Thermometer 82,773 18 *
Light/Dark Detector 126,108 86 *
Simple Colour Organ 52,856 10 *
Strobe Light 133,513 26 *
TRIAC Light Dimmer 205,498 51
Major Projects Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Computerize Your Room/Home 172,676 120 *
Electromagnetic Levitator NEW! 15,948 3 *
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
Tuesday, April 13, 2010 12VDC To 120VAC Inverter 323
Automatic 12V Lead Acid Battery Charger 217
Yesterday
Monday, April 12, 2010 12VDC To 120VAC Inverter 640
Automatic 12V Lead Acid Battery Charger 422
Of All Time 12VDC To 120VAC Inverter 654,735
FM Transmitter 473,878
Auto Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Automatic Headlight Brightness Switch 96,881 52 *
Car Alarm Arming Horn Beep Canceller bob 44,831 6 *
Wireless Auto Tachometer 153,068 52
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 64,967 29 *
Parallel (Printer) Port Interface 132,403 69
Light/Laser Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
12VDC Fluorescent Lamp Driver 189,571 56 *
3 Channel Spectrum Analyzer 62,938 12
40W Fluorescent Lamp Inverter Bart Milnes 139,130 58 *
Adjustable Strobe Light 118,510 28
Black Light 113,790 28
Colour (Sound) Organ 125,319 29
Electronic Dice NEW! 26,152 2 *
Fantastic Atom Expander 73,054 22
Flash Slave Trigger 94,214 15 *
Infa-Red Remote Control 278,016 208 *
IR Remote Extender NEW! 9,888 0 *
IR Remote Jammer Carl 104,999 99 *
IR Remote Switch NEW! 12,943 4 *
LASER Transmitter/Receiver 167,109 85
LED Chaser 172,236 79 *
LED Metronome NEW! 9,832 2 *
LED Thermometer 82,773 18 *
Light/Dark Detector 126,108 86 *
Simple Colour Organ 52,856 10 *
Strobe Light 133,513 26 *
TRIAC Light Dimmer 205,498 51
Major Projects Back to the top of this document
Detailed View: On/Off
Circuit Author Views Rank Comments Marker
Computerize Your Room/Home 172,676 120 *
Electromagnetic Levitator NEW! 15,948 3 *