Lecture [4K def]: MEDIA IN MALVERN, VICTORIA (extract, 11 Feb 2025). скачать в хорошем качестве

Lecture [4K def]: MEDIA IN MALVERN, VICTORIA (extract, 11 Feb 2025).

First 12 minutes of my video-illustrated lecture to the MALVERN HISTORICAL SOCIETY, Melbourne, 11 February 2025. I cannot upload the rest as it contains early footage to which usage/copyright restrictions are set by NFSA (Canberra), MOMI (Melbourne) and Historic Footage Co Ltd (USA). In this part of the lecture I chiefly spoke about PIONEERING RADIO DEVELOPMENTS that occurred in the Malvern (Melbourne) locality: (1) Most recently, in 1976, the first 'talks radio' COMMUNITY RADIO station in Melbourne, 3CR 840kHz AM, whose first studios/transmitter was at 1112 High Street, Armadale until February 1977. I was personally involved in the establishment of this studio. (2) GEORGE W SELBY and CALDER OLIVER, electrical experimenters who constructed the first two spark telegraphy radio transmitters in Victoria, 1897 - 1899. Selby lived at the corner of Alma Road and Khartoum Street, North Caulfield. (3) HENRY SUTTON, originally based in Ballarat, who from 1900 to his death in 1912 undertook fundamental radio research from his home at 9 Erskine Street, Armadale (house still stands). He did research on the radio detecting properties of dissimilar crystals in contact (now called semiconductor research), and was among the first to use a headphone rather than a morse sounder to hear radio signals. These two developments allowed him to receive signals over ranges many times greater than previously achieved in Australia. By 1910 he also constructed Australia's first wireless speech transmitter, using a carbon microphone to modulate the radio carrier wave generated by a Poulsen arc. After that, I talk about the first motion picture coverage of Malvern, but have cut the lecture extract short before the films commence, out of deference to stakeholders in copyright/usage.