(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.
https://www.youtube.com/watch?v=HcMHam54EOI
UK radio audience data was recently released and indicates that more people than ever are listening to radio. Why is that? Kate Chisholm from the