Guest
Love our channel? Help us save and post more orphaned films! Support us on Patreon: Even a really tiny contribution can make a difference. Made for the U.S. Army, this late 1950s / early 1960s film features the fundamental principles of diodes and triodes. It was presented by The Bray Studios Incorporated (:11). It opens with diode fundamentals (:28) showing electron components comprised of semiconductor material (:34). A transistor (:42) is an amplifier serving with the same purpose as a triode vacuum tube. A crystal rectifier is shown (:51). A circuit is demonstrated to conduct current in a single direction (1:18) as a light bulb is lit. When the voltage is reversed, the light bulb remains off (1:25). Animation shows how the crystal of the crystal rectifier (1:41) is composed of semiconductor material such as silicon (1:49). A simple DC circuit is shown (2:17). Electrons within the wire current move towards the positive battery terminal (2:21). A close up shot shows
