Indian Head Test Card. The Indian-head test pattern became familiar to the large baby boom TV audiences in America from 1947 onwards; it would often follow the formal television station sign-off after the United States national anthem. The Indian head was also used by the Canadian Broadcasting Corporation (CBC) in Canada in conjunction with its own monochrome test pattern, following the Canadian national anthem sign-off in the evening, and during its final years in the late-1970s and early-1980s it was shown before sign-on in the morning, after the showing of the SMPTE color bars.[1] It was also used by Rhodesia Television (RTV) during British colonial times (varying between Northern and Southern Rhodesia) following the playing of "God Save the Queen" at closedown. This test pattern was later used by the Venezuelan TV channel Venevision, in conjunction with the RMA Resolution Chart 1941, in the mid and late 1970s before signing on with the Venezuelan national anthem. Telesistema Mexicano (now Televisa) stations also used this test pattern until the late-1960s immediately after playing the Mexican national anthem at sign-off. In Sweden the Indian head was used in test transmissions from the Royal Institute of Technology alongside the RMA Resolution Chart 1941, Telefunken T05 test card, as well as other experimental test cards from Televerket and Chalmers University of Technology from 1948 until November 1958 when it was replaced by the Sveriges Radio TV (now Sveriges Television) test card.[2][3] Saudi Broadcasting Authority in Saudi Arabia also formerly used a modified version of the Indian head test pattern, with the Emblem of Saudi Arabia replacing the Indian head drawing,[4] from 1954 until 1982 when it was replaced with a heavily modified Philips PM5544 test card. The Indian head was also used in Brazil by Rede Tupi, both as a test pattern and as part of a television ident, from its launch in 1950 until it became the first Brazilian television network to adopt colour television in 1971–1972. Test tape supplied with the Ampex VR 5103 1" format A video recorder 1971.Tratto dagli archivi della famiglia Menichini. Riversamento e digitalizzazione Dr. Fernando Menichini
Category
🤖
Tecnologia