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1962 “TRANSISTORS” – How NPN Transistors Function, training film; electronics; circuits (HD)

TRANSISTORS: An vintage 1962 training film details the functions of the NPN transistor. Clear diagrams and narration covers key concepts of electron flow in NPN transistor circuits. NPN transistors are a type of bipolar transistor with three layers that are used for signal amplification.
“NPN” denotes a “negative-positive-negative” transistor, which is controlled by a current flow.
The NPN transistor is divided into three sections: emitter, base, and collector. This is Part 3 of the Army series of electronics training on Transistors, but it stands on its own as an educational tool. Exceptionally good quality; 20 mins, produced by U.S. Army. Uploaded by the Computer History Archives Project (CHAP) for historical and educational content.

Topics and Terms included:
variable resistor
load resistor
bios voltage
germanium transistor
silicon transistor
transistor circuits
T.F. 11 3048

More information:
Troubleshooting Transistor Circuits

PHILCO Transistors

Computer History Museum, Mountain View, California (article):

RCA 501 Transistorized Computer

{The first transistorized computer in the U.S. was the TRADIC (for TRAnsistor DIgital Computer or Transistorized Airborne Digital Computer) completed in 1954. It was built by J.H.Felker of Bell Labs for the United States Air Force.}

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