A photograph of an Emitron television camera demonstration at the Radiolympia Exhibition, Olympia, taken by Tomlin for the Daily Herald newspaper on 26 August, 1937. Made by Marconi-EMI, the Emitron used an all-electronic scanning method for recording pictures. In 1936, the BBC chose the Emitron for their broadcasting service over the various Baird mechanical scanning systems. The Emitron continued in use with the BBC until the early 1950s. It was sufficiently mobile for outside broadcasts. The notice here claims that it was 'largely responsible for the supremacy of British broadcasting'.
© Daily Herald Archive / National Science & Media Museum / Science & Society Picture Library