hintsandtips
Hints and Tips
From 50 years of collecting ham radio related information on 3" X 5" file cards
From 50 years of collecting ham radio related information on 3" X 5" file cards
I have been collecting interesting bits of Ham Radio related information for over 50 years. Now the Internet provides an easy way for me to share some of my collection.
I have attempted to indicate the source of this information were ever possible. Some of the references are so old as to be virtually untraceable, but much of this data is of fairly recent origin and can be attributed to on-line and on-the-air friends and acquaintances.
- Capacitor Measurement Methods
- Inductance Measuring Methods
- Inductance Measurement Methods
- Zener Diode Instability
- Minimalist Z-Bridge
- Homebrewed Soldering Station and Tip Cleaner
- Small Solder Pot
- Homebrew PCB Vise (K7HKL)
- Aluminum Foil Solder Shield (K7HKL)
- Cheap Clip Leads (K7HKL)
- Making IC Pads for Ugly Construction Method
- Bed-of-Squares PCB Prototype Boards
- https://sites.google.com/site/arvidevans/hintsandtips/bed-of-squares-prototype-pcb
- Home-made 9V Battery Mounting Clips (K7HKL)
- Homebrew Miniductor Type Coils (K7HKL)
- Inexpensive Labels for Enclosures (K7HKL)
- Loop Tuning Sleeve Capacitor
- Loupe Hanger for close work
- LCRF Mechanical Calculator (K7HKL & VK6JY)
- Drain Pipe Stealth Vertical Antenna for HF
- RF Probe For DVM or VTVM
- Terminator for Radial or Counterpoise wires
- LED Applications
- Using Cheap Watch Crystals (K7HKL)
- Using Air-Core Toroids (VU3ICQ)
- Toroid Inductors
- LED Antenna Current Indicator
- BasketBall Antenna Base (K7HKL)
- Source for Copper-Coated Steel-Core Antenna Wire
- -20 DB Coupler (K8IQY)
- Brass Screw PTO (WA6OTP)
- Brass Screw PTO Mechanicals (K7HKL)
- Thumbwheel PTO Mechanicals (K7HKL)
- Simple Mechanical Layout for PTO (K7HKL)
- Worm Gear VFO Drive (K7HKL)
- Using CD-ROM Disks As Dials (K7HKL)
- Grommet & CD-ROM Drive (K7HKL)
- Lathe Turned Radio Knobs (K7HKL)
- Discrete Component Audio Amplifier
- Headphone Driver for Cheap Phones
- Bi-directional Amplifier Circuits (RU3GM)
- Salvaging Parts from Dead CF Lamps
- The Dual-base Transistor (E, B1, B2, C)
- Crystal Oscillator Pinout
- Cheap Calculator Tricks
- Testing Transistors for DC Gain (K7HKL)
- TV Line Splitter Circuit Housings (K7HKL)
- Easy Inductance Meter (Dick Capel)
- Incremental Tuning Methods
- CW Sidetone Circuit
- SSB & CW Filters For Rx
- LED Bar Graph Display (K7HKL)
- Variable Count Battery Charger (K7HKL)
- Drill Guide Plate for Making Radio Knobs (K7HKL)
- Homemade High Current Cable Ends (K7HKL)
- Ambihelical Hexnut Fixture
- Roller Chain Information
- Electric Motor Calculation
- PC Video Cable Pinout
- PC USB CONNECTORS PINOUT
- Wire Gauge Charts
- Pipe Characteristics (USA)