Miller, Clarence Benwell, Welch, George Richard · leaf 12
ment consists of an alternating current elec-tro raa,^^,net connected to some source of current and provided with asteel rod or rood near one of its ends,As alternating current flows throufh the magnet the reed is setin synchronous vibration.The nat-ural period cf the reed is made to…
Electric motors, Induction · Magnetic fields · Rotors · Theses
Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.
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