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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 such as PhotoStyler, and adjust the size. I have of course provided all the schematics, and I have provided PC board patterns whenever possible. This page is always under construction and there will be new additions often. Some of these circuits were designed by me, some were not.

Circuit Information Markers:

This Symbol	Means This
*	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.

Want to view detailed information of each circuit on this page without having to click all the links? If yes, then Click here!

Or, if you have detailed info turned on, you can also turn it off. Neat, eh?

• Light/LASER Circuits
• Sound/Radio Circuits
• Power Supply Circuits
• Auto Circuits
• Computer Circuits
• Phone Circuits
• Other Circuits
• Major Electronics Projects
• Where To Get Parts

• LASER Power Supply
• Fantastic Atom Expander
• Black Light
• Colour (Sound) Organ
• Strobe Light *
• TRIAC Light Dimmer
• Simple Colour Organ
• 12VDC Fluorescent Lamp Driver *
• Adjustable Strobe Light
• LASER Transmitter/Receiver
• Light/Dark Detector *
• Infa-Red Remote Control *
• LED Chaser *
• Flash Slave Trigger *
• 40W Fluorescent Lamp Inverter (Bart Milnes) *
• 3 Channel Spectrum Analyzer

• 8 Watt Audio Amp *
• FM Transmitter
• Op Amp Radio *
• FET Audio Mixer
• Transistor Organ
• 50 Watt Amplifier
• 8 Note Tune Player *
• 22 Watt Audio Amplifier
• Crystal Radio *
• Digital Volume Control *
• Sound Level Meter *
• 3 Watt FM Transmitter (Rae XL Tkacik) *
• Microphone Mixer (Anatoly I. Shikhatov) *
• Tone Control
• Guitar Fuzz Effect *
• Stereo Tube Amplifier (Weslee Kinsler) *
• Electronic Stethoscope *

• Power Supply *
• LASER Power Supply
• Solid State Tesla Coil/High Voltage Generator
• 12VDC To 120VAC Inverter
• Portable CD Player Adapter For Car *
• Dual Polarity Power Supply *
• High Current Power Supply *
• Car Battery Charger *
• High Voltage High Current Power Supply * *
• Transformerless Power Supply *
• Voltage Inverter *
• Fixed Voltage Power Supply *
• Voltage Inverter II *
• 6V to 12V Converter *

• Wireless Auto Tachometer
• Automatic Headlight Brightness Switch *

• Parallel (Printer) Port Interface

• Phone Busy Indicator *
• Cut Phone Line Detector *
• Telephone Hold Button
• Telephone Recorder *
• FM Telephone Bug
• Simple Phone Tap (Derek Tombrello) *
• Ringing Phone Light Flasher * *

• Computerize Your Room/Home *

• Simple Lie Detector
• Rain Detector *
• Stepper Motor Controller *
• Pulse Width Modulation DC Motor Control *
• Touch Switch *
• 7 Segment LED Counter *
• Time Delay Relay
• Pine Racecar Victory Judge *
• Time Delay Relay II (jawaharlal@excite.com) *
• Simple Polarity Tester (Dudley LeRoux) *
• Wire Loop Alarm (Alex Meaden) *
• IR Remote Jammer (Carl) *
• Video Activated Relay *
• Air Flow Detector *
• Low Voltage Alarm *
• Simple Two Speed Contactor DC Motor Controller *

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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.