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Radio Record, 11 March 1938, Page 55

Among the unusual items planned by the Programme Department of the: Danish Broadcasting Service for the near future. is a special "Jensen Day." On this day it is hoped that every item broadcast will either be written or performed by someone bearing the name of Jensen, which is fully as common as is Johnson in Bngland. The day will be opened by the new chief of broadeasting who bears this name. % * x The latest application of the thermionic valve appears to be in connection with the ‘"‘spoken letter" service inaugurated by the Dutch Post Office. Outside the G.P.O. in Amsterdam, The Hague, and other large towns, are installed special automatic recording machines. ‘The user inserts a coin into the slot and then proceeds to speak about 150 words into a microphone mounted on the instrument. By means of a valve amplifier and other apparatus his words are duly recorded on a disc, which is then delivered by the machine, complete with a special envelope ready for despatch to a friend. The reverse side of the disc is available for spoken advertise ing.