• Crystal set components
• LC tuner
• PN junction diode detectors
• P-type and N-type semiconductors
• Detection of AM signals
• Homebuilding the parts for a crystal set
• The Jamestown diode
• The Caribou headphone
• Recreating Hertz's radio equipment
• Transmitting and receiving as simply as possible
• The 1880 ten-meter communicator
• Proving that radio waves exist and aren't just capacitive or magnetic coupling
• Demonstrating standing waves to measure frequency
• Building homebrew transistors
• Bipolar transistors, PNP and NPN
• Demonstrating voltage gain
• The Boulder Rock Radio

Chapter 5

GETTING ON THE AIR - DECIDING WHAT TO DO FIRST

• How to earn a license
• The rules of the homebuilding game- Whatever makes you happy!
• Picking an HF band
• Getting acquainted with the HF ham bands, 160- 10 meters
• Instant high quality HF communications
• VHF/ UHF handheld transceivers
• Building an antenna
• Dipoles, regular and folded
• Multi-band dipoles
• 80 meters when you don't have room for a dipole
• The curtain rod vertical
• A multi-band vertical antenna
• Lightning protection

Chapter 6

BUILDING A QRP HOMEBREW

• A single-band, crystal-controlled, QRP module
• The transmitter mainframe
• HF construction methods
• Making your own PC boards

-"Dead Bug" and "Gouged Board" construction

-Superglue "Island Boards"

-Coax jumpers

-Shielded boxes

• The complete QRP crystal-controlled transmitter

-Transistor amplifiers and oscillators

-How an amplifier becomes an oscillator

-Class A and Class C amplifiers

-Stabilizing the operating point, bypass caps and emitter resistors

-Quartz crystals- the key to frequency stability

-The 40 meter QRP circuit

-Oscillator and buffer

-Inductors, RF transformers and impedance matching

-Tapped toroid inductors

-How to wind them (and mistakes you might make)

-The final amplifier stages for the QRP

-Tuned versus broadband - Use both for best results

-Bifilar wound, broadband transformers

-How to wind them (and how you might screw up)

-Ferrite bead RF chokes, expensive RF power transistors, heat sinks & output connectors

-Conquering inductors

-Calculating resonance

-Calibrating trimmer capacitors

-Calculating turns on powdered iron and ferrite toroids

-Chebyshev output low pass filters

-Keying your QRP

-MOSFET power transistors

- A "spot switch" for the QRP

Chapter 7

BUILDING A CODE PRACTICE RECEIVER

• A simple, direct-conversion receiver
• A great first project for a new ham
• Excellent sensitivity and good stability
• Poor selectivity
• Adding 700 Hz audio filtering
• High pass and low pass filters
• Cascaded bandpass filters increase selectivity
• Operational amplifiers
• Building with integrated circuits
• AM broadcast filter
• Getting rid of the image

Chapter 8

POWER SUPPLIES

• Line powered power supplies
• Power supply safety features
• Isolation, 3-conductor cords, fuses, switches, ratings
• Supply performance and regulation
• Rectification, ripple, chokes, capacitors, & bleeders
• Zeners, linear regulators, switching regulators

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