Video: How The Teleprinter Works (1940)
by Thomas from The SWLing Post on (#Y395)
(Source: Stephen, G7VFY, via the Southgate ARC)
Produced by the GPO Film Unit. Models are used to demonstrate the working of a teleprinter. Shown is how the pressing of a key on the keyboard generates a five unit teleprinter code, is then transmitted as a serial code to the teleprinter line and finally is decoded to select the correct character on the type wheel of the printing mechanism of the receiving teleprinter.