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 74
the operation of this device Imust remind the reader that modern researchhas shown that the atoms of which materialsubstance are composed are themselves formedof still smaller atoms of electricity called elec-trons. An atom of matter is a very small thing.If 250,000,000 atoms of copper or gold… … LULU UJ UJ PLATE. TERMINALS Diagram of Audion Tube, ShowingRelative Positions of Elements WIRE MAGNETICFIELD-*-
Radio · Amateur radio stations
Internet Archive · University of Connecticut Library · Public Domain Mark 1.0. Free to use for anything.
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