29-06-2017, 10:14 AM
(This post was last modified: 29-06-2017, 10:18 AM by Synchrodyne.)
Such 819/405-line dual-standard receivers were mentioned in this Wireless World (WW) article from 1962 October:
Presumably the French setmakers had already had some practice with a 2:1 or thereabouts line frequency ratio, because in the early days (1951) there were some 819/441-line dual-standard receivers:
819/625 line multistandard receivers for the border areas arrived quite early, by 1954. Thus, the French setmakers gained some experience in this area well before 819/625-line dual-standard receivers became the norm in the early 1960s:
And by the end of the 1950s, 819/625/405 line multistandard receivers were available:
Cheers,
Steve
Presumably the French setmakers had already had some practice with a 2:1 or thereabouts line frequency ratio, because in the early days (1951) there were some 819/441-line dual-standard receivers:
819/625 line multistandard receivers for the border areas arrived quite early, by 1954. Thus, the French setmakers gained some experience in this area well before 819/625-line dual-standard receivers became the norm in the early 1960s:
And by the end of the 1950s, 819/625/405 line multistandard receivers were available:
Cheers,
Steve
