Tag Archives: toroids

Amateur Extra Class Lesson 4.3, Part 2, Principles of Circuits, 11th Edition

Here’s Part 2 of your video introduction to Section 4.3, “Principles of Circuits,” from the ARRL Extra Class License Manual for Ham Radio. This section discusses resonance, Q (quality factor), Properties of components at RF and Microwave frequencies, and magnetic … Continue reading

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Amateur Extra Lesson 4.2 Part 3: Resonance

Here’s the third of three video introductions to Section 4.2, Electrical Principles, in the ARRL Extra Class License Manual for Ham Radio. This video focuses on resonance, Q, and magnetic cores, particularly on resonance. Resonance is the fundamental building block … Continue reading

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