Make your own free website on Tripod.com

  K4GZX Start Page
  K4GZX Home Page
  Code Class
  Hamfest Schedule
  NE Georgia Ham Directory
    Athens * Buford
    Clayton * Elberton
    Evans * Gainesville
    Hartwell * Monroe
    Oakwood * Watkinsville
  Repeater Directory
    Georgia
    South Carolina
    North Carolina
    Tennessee
    Alabama
    Florida
  DIY Projects
   Projects #1
      Antennas
      Amplifiers
      Filters
      Power Supplies
      RDF
      Receivers
      Transmitters
      Test Equipment
      Tutorial
   Projects #2
      Alarms & Security
      Automotive
      LED
      Radio Frequency
      Test Equipment
      Timers & Oscillators
      Transmitters
   Projects #3
      Data Acquisition
      Infrared
      Laser
      Microcontroller
      Motor Control
      PC
      PDA
   Projects #4
      Audio Amps
      Audio Preamps
      Misc. Audio
      Filters
      Games
      Medical & Health
      Models
      Music
   Projects #5
      Lighting
      Miscellaneous
      Power Supplies
      Solar Power
      Telephone & Intercom
      Video
  More Good Stuff
    APRS Map of Georgia
    APRS 18-Wheelers
    APRS Around the World
    The Weekly Rant
    Space Weather
    ARES Forms & Manuals
    The Shack Cats
  Charts & Tables
    10-Codes
    49Mhz Frequencies
    900MHz Frequencies
    AM Clear Channels
    AM Broadcast Band
    AM Broadcast Mexico
    Air Band HF Frequencies
    Air Band VHF Frequencies
    ASCII Character Chart
    ASCII Control Codes
    Baudot Code
    Band Plan for HF
    Band Plan for VHF
    Band Plan for UHF
    CB Frequencies
    CB Keydown
    CB Lingo
    Civil Air Patrol
    Coax Cable Data
    CTCSS Tones
    CW Abbreviations
    Dot & Star Frequencies
    DTMF Tones
    EMD Codes
    FM Broadcast Band
    FRS Frequencies
    Gain Table
    GMRS
    Ham Bands
    Hexadecimal-Decimal
    Hexadecimal-Octal
    Hurricane Nets
    Octal-Decimal
    Maritime HF
    Maritime VHF
    MURS Frequencies
    NOAA Frequencies
    Phonetic Alphabets
    Public Service Frequencies
    Q-Codes
    Radio Glossary
    Railroad Frequencies
    Repeater Lingo
    RF Spectrum
    Shortwave Bands
    SWR Table
    TV Frequencies
    TV Cable Frequencies
    UTC Chart
    Wire Table
    Wireless Mic
  Links
    Local Links
    Georgia Links
    More Links
    Mega Links
  Scanning & Shortwave
    Georgia Scanner List
    State of Georgia List
    Robert's Scanner Info
    Ruff's Scanner List
    Clarke Co Frequencies
    Old Scanner List
    Shortwave
  Equipment Frequency List
    Dual Band Mobile
    Dual Band HT
    DB Blueface #1
    DB Blueface #2
    Old Mobile #1
  Ol'Geezer Group Archive
    Field Day Pix #1
    Field Day Pix #2
    Field Day Pix #3
    Field Day Pix #4
    Ol'Geezers Clean House
    Ol'Geezers Fix Repeater
    Classic Ol'Geezers #1
    Classic Ol'Geezers #2
    Waynesville Fest
    Dayton 2000
    Dayton 2002
  Weather
    Space Weather
    AHN Runway WX
    AHN 10 Day Forecast
    Atlanta WX Radar
    Cold Mountain Webcam
    NOAA Watch/Warnings
    NOAA.GOV
    Tropical Storms
    ATL Nexrad Wx Radar
    SE Radar Loop
    US Radar Loop

  My Other Pages
    K4GZX Webpage
    K4GZX Webpage
    K4GZX Webpage
    K4GZX Webpage
    K4GZX Webpage
    K4GZX Webpage
    K4GZX Webpage

    KC4GZX Webpage
    KC4GZX Webpage
    KC4GZX Webpage
    KC4GZX Webpage
    KC4GZX Webpage
    KC4GZX Webpage
    KC4GZX Webpage




Solar X-rays
Status
Status
Geomagnetic Field



Do It Yourself Projects #1

Posted 01 Nov 2003
Updated 15 Oct 2004

Here are some of the "Best of the Best" Projects and "How-To" Pages I've wandered upon in my treks across the Net.


Electronics Basics

Radio Terminology - learn the basics, learn what's what! get a basic understanding of all the major terms used in ham radio and electronics
Basic Electronic Units - learn the basics of those important components Inductance, Capacitance and Resistance
Radio Basics - learn the basics at the necessary level to follow the later advanced topics. Begin to understand LC, reactance, impedance, even Q and other important basic concepts. Includes a great Javascript LC calculator written to work out L or C from resonant frequency!
Resistor color code - yes the much sought after color code chart.
Component Database Server - Visual Identification of components including utilities to identify component part numbers.


Antennas

5/4 Wave 2 Meter Antenna
70cm Collinear Antenna From Coax
Home Brew A 4 To 1 Balun
Copper pipe dipole antenna construction for 2 Meters
Diamond F23 Antenna Defect -
Guy Anchors
J-pole Antenna
Lightning - Porcupine Static Discharger
Portable wire antenna
Rotator Brake Delay and Protection Circuit
Rotator Connector Replacement
Tower Tips from N1LO
Coax - Some common coaxial cable data
Multiband Cubical Quad
Hexagonal Beam in 3 hours
80/40m Vertical
Cushcraft R5/R7 Maintenance and Repair
Antennae for the Low Bands, 80 and 160m
A Ball hitch Mobile mount
Crank-up Tilt-over Tower
Remote Antenna Switching
Automatic Band Decoders
Troubleshooting Traps
Automatic or Manual Band Decoder for 6 to 160 Meters

The WINDOM - My Favorite Multi-Band Antenna
A six-band, HF Windom antenna
NVIS: Near Vertical Incidence Skywave
The COPPER CACTUS Antenna
Super Linear-Loaded Inverted V
The Stacked J-Pole

Quickie Vertical
2 Meter Halo
2 Meter PVC Colinear
Field Day Emergency 2 Meter Half Wave Colinear
5/8th Wave Stacked J-Pole
2 Meter Half Wave J-Pole
Pocket J-Pole Antenna for 2 Meters
HF Antenna Designs

HF Mobile Antenna
Magnetic Loop Antenna - Mag-Loop, Small Transmitting Loop
Duplexer (Diplexer) 2m / 70cm
Duplexer (Diplexer) HF + 6m / 2m + 70 cm
Coax Cable Data
Coax Cable Data - (vhf/uhf/shf)
Wire Gauge Conversion Table
Clear PACTOR - Adapterbox
Spider Beam - Tribander yagi for 20/15/10m, made of fiberglass and wire.
Multiband Fan Dipole
40 meter Stealth Vertical
RF safety calculator
Antennas, some rules of thumb for beginners - Every now and then beginners, afraid of making the wrong choice, ask for antenna suggestions.
Passive Antenna Re-radiators - Again in response to some considerable interest I have posted some project ideas for receiving difficulties for you to construct passive antenna re-radiators or "sort" of Q multipliers.
Active Receiving Antennas - a discussion on some of the principles and justifications behind the design of active receiving antennas for radio projects.
Balun design - an electronic tutorial discussing baluns


Amplifiers

Audio Speech Processor
Transistor Audio Amplifiers
Home Brew A Condenser Mike
IC Audio Amplifiers
Amplifier design - Part 1 - learn how to design both a.c. amplifiers and r.f. amplifiers
Amplifier design - Part 2 - amplifiers using emitter degeneration
Amplifier design - Part 3 - amplifiers using emitter degeneration AND feedback
Buffer Amplifier design - to buffer low level stages before succeeding amplification
Small Signal Amplifier design - to follow the buffered low level stages before power amplification
Double Balanced Mixer design - an electronic tutorial on double balanced mixers
Designing Bipolar Transistor Audio PreAmps
Designing JFET Transistor Audio PreAmps
Designing Op Amp IC Audio PreAmps




Filters

L.C. Filter design - a comprehensive electronic tutorial for everybody into ham radio or the electronic hobbyist
High pass LC filter design - learn how to design high pass LC filters - Part 1
Low pass filter design - the basis of many other filters
Band pass filters for many purposes
Multi-pole narrow band pass filters
I.F. Amplifier filters as designed in the olden days


Power Supplies

Discrete Component Voltage Regulator
12 Volt Gel Cell Charger
10 Amp, 13.8 Volt Power Supply
Beef up Voltage Regulators
Rechargable CMOS Battery
Adjustable Voltage Regulator
Battery Charger in an XT power supply box
Trickle Charge Circuit for Deep Cycle Batteries
PowerPole - The STANDARD 12 volt connector
Astron Power Supply Meter Modifications - analog meters replaced with digital panel meters.
A Power Supply Dummy Load - Made from brake lamps
Power Supply - 1 - a tutorial on the basics of designing simple power supplies for radio projects.
Power Supply - 2 - regulation of power supply voltages.
Power Supply - 3 - designing with solid state regulators as well as using higher current regulators.
Power Supply - 4 - a bench variable voltage power supply project for you to construct at home.
Switching Regulator Basics
Using Transistors As Switches


RDF

RDF2 - 2 Element Sniffer Beam with Tape Measure Elements
Tape Measure 3 Element Yagi - RDF Optimized Beam
VK3ZPF PROJECTS INDEX
2m Quad Construction Instructions
Tape Measure 3 Element Yagi - RDF Optimized Beam
RDF2 - 2 Element Sniffer Beam with Tape Measure Elements
Passive Attenuator - easy for beginners
Active Attenuator - Slightly more complex than the passive attenuator.
555 Time-Difference-Of-Arrival RDF UNIT - Minimum T.D.O.A. Circuit.
SIMPLE Time-Difference-Of-Arrival RDF UNIT - A center scale meter shows which way to transmitter.
The FOX TIMER - travel alarm used to control 250 milliwatt transmitter.
FOXBOX Transmitter Controller
THE FOX - two transistor 40 milliwatt fox transmitter
THE FOX-750 - three transistor 750 milliwatt fox transmitter
Radio Direction Finding Projects


Receivers

100Khz Crystal Calibrator
Simple Electronic S-Meter
Variable Bandwidth CW Filter
Radio Receivers - the fundamentals of radio receivers
A.M. Radio design - the basics of a.m. radio design Part 1
A.M. Radio design - the basics of a.m. radio design Part 2
F.M. Radio design - the basics of f.m radio design Part 1
F.M. Radio design - the basics of f.m radio design Part 2
A basic old time crystal radio set - basic crystal radio set but includes a lot of design information
A reflex radio receiver circuit - out of fashion now but here are the principles, design information and schematics
Radio Telescope - In response to some considerable interest I have posted a project for you to construct a 30 Mhz radio telescope.
Use LEDs to Replace Bulbs for LCD Backlight
Multimode Interface Info


Transmitters

Basic VOX Circuit
PL Tone Encoder Board
Improved PL Tone Encoder
40 Meter, 5 Watt QRP Transmitter
80 Meter, 5 Watt CW Transceiver
CW Tone Keyer
Easy Morse Code Keyer
Easy FM Keyer
Simple Electronic Keyer
Thermal Fan Controller
GE Mastr II Mods
Design of RF Oscillators - a discussion on some of the principles and justifications behind the RF design and construction of radio frequency oscillators
Design of Voltage Controlled Oscillators - a discussion on some of the principles and justifications behind the design of voltage controlled oscillators or VCO's.
Design of Crystal Oscillators - a discussion on some of the principles behind the design of crystal oscillators or VXCO's.


Test Equipment

Field Strength Meter
Bird 43 Wattmeter - pages from the manual
LC Meter Project and Kit - Now you can easily build a quality inductance and capacitance meter (LC meter project). Ideal for any serious constructor - designed by Neil Hecht of AADE.
Square Wave Signal Generator - Build a basic first class electronic hobbyist test instrument - ideal for trouble shooting. Includes a how to use guide. Excellent beginner project to start your collection of amateur-radio-equipment.


Links to More Projects


• Hand Crafted in the Warm Glow of Vacuum Tubes •
Low in Fat • No Frames • No Cholesterol • No Sounds (well, one)
High in Fiber • No Movies • No MSG • No Animation (well, very little)
Kudzu Free (impossible) • Absolutely No Cookies
and Now with a Drop of Retsin™.

[ ]

Copyright © 2003-
All Rights Reserved
MicroMax Systems Inc.