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Click here for Dave's commercial site, www.mtsneffelspress.com, where you can order Dave's fantasy books and other books by local authors. One very popular book I publish for the local railroad museum is about historic narrow gauge railroads in the San Juans.
Monthly Archives: August 2014
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
Here’s your video introduction to the ARRL Extra Class License Manual for Ham Radio, Section 4.2. This is the second of three videos covering this section; this section discusses reactance, or how inductors and capacitors react to alternating current. If … Continue reading
Here’s some summer flowers and waterfalls at Yankee Boy Basin, outside Ouray, Colorado. (1 min, 43 sec) The music is “Sleepy Jake” by Silent Partner, courtesy the YouTube audio library.
Here’s your video introduction to the ARRL Extra Class License Manual for Ham Radio, Section 4.2, Electrical Principles. I’ve divided this rather lengthy section into three videos, of which this is the first; this video covers fields, energy, and time … Continue reading