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GCLM Chapters GCLM Homepage Introduction Procedures and Practices Rules and Regulations Components and Circuits Radio Signals and Equipment Antennas Propagation Electrical and RF Safety   ARRL Products: DXCC, DXing resources and Call Sign listings (More) YASME--The Danny Weil and Colvin Radio Expeditions -- This is the history of three travelers: sailor Danny Weil and famed ham radio DXpeditioners Lloyd and Iris Colvin. RSGB Prefix Guide -- Now Shipping! -- The complete guide to prefix identification and information. DXCC listings by prefix, award details, and more. 8th edition. ARRL DX Century Club Program (DXCC) -- Award items, available from the DXCC Desk. RSGB IOTA Directory -- Now Shipping! -- Everything you need to know to enjoy collecting islands for the popular worldwide IOTA (Islands on the Air) award. The DXCC Yearbook 2007 -- Now Shipping! -- The DXing year-in-review: DXing activities, the Clinton B. DeSoto Cup and DXCC Challenge standings.

Chapter 4 – Components and Circuits

Part of becoming a General Class ham is learning more about electronics and radio so that you can take advantage of all those new privileges! You’ll find ham radio a lot more fun and you’ll feel much more confident with some radio “know-how” and that’s the focus of Section 4.

Electronics Math

• Scientific Notation
• Tutorial on Power and Decibels
• Metric System

Electronics

• How to Read Circuit Diagrams, Part I - this may be old, but it's accurate!
• How to Read Circuit Diagrams, Part II
• Color Codes - learn how to read the value of electronic components by their colored markings
• Photovoltaics - how to convert light to power
• Vacuum Tubes - the complete Wikipedia entry on this oldest of all active electronic components

Training and Tutorials

• ARRL Certification and Continuing Education Courses - the ARRL offers mentored on-line courses on a number of topics
• QST Hands-On Radio - a monthly column explaining some aspect of radio electronics
• Tutorials by VK2TIP - tutorials on semiconductors and electronics

Technical References

• ARRL Technical Information Service (TIS) - numerous Web resources and magazine articles on technical topics of interest to all hams   
• The ARRL Handbook - the oldest and best radio handbook around
• Understanding Basic Electronics - introduction to the electronics of radio