Online Library

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

 

Electronic Circuits

 

Collection of Ascii Circuit Diagrams [V1.00]

Miscellaneous Circuits (21 circuits)

Headlight Reminder Circuit

Quiz-Show Indicator

Frequency and Capacitance meter

CMOS Oscillator

Adjustable flashing LED

LED Display controller

Info on CO2 lasers wanted (ho hum)

Crystal 32.768KHz CMOS Oscillator

Crystal Oscillator

FM 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 Audio

Phone 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