02-02-2019, 10:14 PM
(30-01-2019, 12:39 PM)ppppenguin Wrote: The whole question of choosing standards was a complex one. Forum member Synchrodyne has dug up a lot of material on the subject. It's something of a miracle that we ended up with 625 for all 50Hz countries. With 2 exceptions. One was the legacy of 405, the other was the bold but ultimately failed push to HD with 819. Like all standards, 625 was a compromise but time showed that it was a good one.
Quite a bit of what I have found, particularly on the 625/50 case, is scattered over several threads in different forums.
Some is in these three from UKVRR:
625-Line Television Broadcast Standards https://www.vintage-radio.net/forum/show...hp?t=36027
625-Line Television System Origins https://www.vintage-radio.net/forum/show...hp?t=83653
TV system differences? https://www.vintage-radio.net/forum/show...p?t=146498
And there is some in this thread from VRAT, although 625/50 history is not a primary subject:
Analogue Television Broadcast Transmission System Letter Designations https://www.radios-tv.co.uk/community/bl...ignations/
However, I have a drafted a summary that I could complete fairly soon and post here. By no means have I found all of the answers, though. I am not sure that I know all of the questions, either.
Cheers,
Steve
