• Circuit Components - amplifier fundamentals, diode fundamentals, bipolar transistor, field-effect transistor, triode vacuum tube, resistor color codes, tolerances, temperature coefficient. (PDF file, opens in a separate window)

  • Fundamentals of Transistors - introduction to transistors targeted at "the technician and amateur". Shows basic transistor circuits. (PDF file, opens in a separate window)

  • Solid-State Devices and Power Supplies - US Navy document on semiconductor diodes, transistors, Zener diodes, varactors, solid state power supplies and more. (PDF file, opens in a separate window)
Notice: Most of the resources on this page are hosted on remote servers. Most of them are copyrighted and may require a permission from the owner in order to use them other than for personal use. The majority of the materials comes from the Toronto Emergency Communications (EmComm) Group and is offered free of charge to all Radio Clubs, ARES Groups, and individuals in the interest of public safety and community service. Unless stated otherwise, this web page serves as a links database to the most valuable internet resources for ham radio enthusiasts.