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Aircraft

Rules and Regulations of Airplane Building
Aircraft Construction; Where do I Begin?
How to Build Wood Wings
Measuring Wood Grain Slope
Electrical System: "Where do I Start?"
The First Flight & Performance Testing of Your Aircraft
Riveted Joint Construction
Horizontal Tail: Pitch, Stability And Control
Control Of Our Airplane
Choosing the Design of Your Aircraft
Compression Testing Tips
File Your Flight Plan and get weather "online" via DUATS
Technical Tips for Building a Composite Airplane
1902 Wright Glider
Aviation Articles

Alternative Energy

Solar Power Articles

Health Sciences

How To Prevent Hair Loss & Treatments

Electronic Circuits

Collection of Ascii Circuit Diagrams [V1.00]
Miscellaneous Circuits
(21 circuits) Headlight Reminder
CircuitQuiz-Show Indicator
Frequency and Capacitance meter
CMOS Oscillator
Adjustable flashing LED
LED Display controller
Info on CO2 lasers wanted
Crystal 32.768KHz CMOS Oscillator
Crystal OscillatorFM Oscillator
Video amplifier
'Nixie' display tubes
Condenser microphone hookup
Bringing NiCd's from the dead
Phase shifter circuit
Ultrasonic transducer oscillator circuit
RR LED flasher (alternating)
HV supply 12VDC in, 12KV out
Generating -5VDC from +5VDC
Ground loops
Peltier coolers/heaters

IR Related Circuits (7 circuits)

Infra Red Remote Transponder
Cheap 40KHz clock
A very STABLE 40khz generator
Minimizing SUN's noise in IR reception
Build an Infrared night scope
Decoding IR Remote Controls
IR 'slotted switch' sensor

PC Related Circuits (8 circuits)

Analog Signal Acquisition for PC Printer Port
AC switching with TRIAC from TTL
'Rounding Off' a square wave
More accurate PC/AT clock
Filtering PC bus POWER
Control 120VAC relay with TTL
Build logic gates using discrete parts
Driving a relay with a CPU

Telephone Related Circuits (14 circuits)

Telephone in use light
Detecting a telephone RING
(manual) Phone In-Use Light
Phone to audio interface (SSI202 input)
Phone Off-Hook Indicator
'phone rang' indicator light
Phone Line to AudioPhone
in-use Telephone Line Monitor (Plans)
Use old phones as an intercom
Phone-In-Use indicator
Telephone Power?
Hold function for Telephone
Digital/Standard Phone Line Tester

Radio-related Circuits

Active Antenna
Build a Yagi-Uda Antenna
Small Radio Transmitter
RF Sniffer <.5 to >500 MHz

Computer-related Circuits

Drawing power from a PC Serial port
Computer controlled IR device (hardware/software)
Serial Port A/D Converter
Centronics D/A and Filter
Joystick Interface Projects
Null Printer Adapter

Audio/Music Circuits

Microphone Pre-Amp
Midi Passthrough Circuit
100W RMS Amplifier
Paradoxical sound synthesizer
Simple Microphone Amplifier
Guitar Effect Circuit
Audio mixer for FM-10 Transmitter
Audio Mixer for FM-10 Transmitter - README File

Telephone Related Circuits

Caller ID Circuit

Miscellaneous Circuits

Switch De-bouncer Using a 555
The Multivibrator Circuit
12 volt D.C. Power Supply
Circuit for a Critter Ridder
How to generate random numbers
How to make a Jacob's Ladder
Squarewave to Sine circuit
Garage Door Opener Scanner
Clock Divider Circuit
A Clock Doubling Circuit (500KHz) for CMOS logic
IR Detector
Simple IR Detector
VGA to TV Information Center
Discrete low-drop voltage regulator (5V, 1A max)
Introduction to Tesla Coils - Postscript
Log A-D Converter: Part1 (GIF), Part 2 (GIF)
Frequency Dependant Negative Resistor (Using Opamps)
Closed Caption decoder
Simple 5V Power Supply

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