The fultograph was an early, clockwork image-receiving device, similar in function to fax machines. It took signals from the loudspeaker socket of a radio receiver and used an electrochemical process to darken areas of sensitised paper wrapped on a rotating drum. Invented by Otto Fulton, the system was used briefly in the late 1920s to broadcast images to homes by radio. The machines themselves were expensive (£

Pound sterling

The pound sterling , commonly called the pound, is the official currency of the United Kingdom, its Crown Dependencies and the British Overseas Territories of South Georgia and the South Sandwich Islands, British Antarctic Territory and Tristan da Cunha. It is subdivided into 100 pence...

22 15s 0d in 1928) and required a good receiver to operate.

The Fultograph was the subject of an article in the British RadCom

Radcom

RadCom is the monthly magazine published by the Radio Society of Great Britain and is provided free to all corporate members of the society. Typically 100 pages, it includes a mixture of news, theory, construction and technical articles of interest to the amateur radio community...

amateur radio

Amateur radio

Amateur radio is the use of designated radio frequency spectrum for purposes of private recreation, non-commercial exchange of messages, wireless experimentation, self-training, and emergency communication...

 magazine in October 2007.

External links

• A detailed German text, from a 1920s catalogue, with illustrations and a circuit diagram.
• Fultograph, a German-language
  German language
  German is a West Germanic language, related to and classified alongside English and Dutch. With an estimated 90 – 98 million native speakers, German is one of the world's major languages and is the most widely-spoken first language in the European Union....
  
  text with colour photographs.