Amateur radio : how and why of wireless with complete instructions on operation of receiving outfits (1922)
Grainger, Maurice J · New York : James A. McCann · leaf 132
Simple Hook-Up Using Audion Detector … GROUND CIM1P Very Simple Hook-Up Using Crystal Detector and Tuning Coil. ii2 AMATEUR RADIO then drilled in the panel and where they comethrough the leaf, it is scraped away so as notto form contact with any part of the circuits.The coating is grounded to the earth post ofthe receiver. The interior…
Radio · Amateur radio stations
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