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In the early days of 405, a line 1.5 lines long was inserted at the bottom of the frame. I forget the details of why, but something to do with synchronisation. This odd sized line was dropped fairly early in 405's history. Tabby ( talk) 11:24, 26 November 2007 (UTC)
84.92.117.3 ( talk) 14:18, 11 April 2016 (UTC)Jonathan Bromley
Interesting concept but surely if would have been a lot simpler to decreace the focus voltage slightly to produce a larger spot (and hence thicker lines) ? 80.229.222.48 ( talk) 20:54, 15 March 2008 (UTC)
Can anyone give a reference or further information on the New Zealand part of "was also used for some time in Ireland, Hong Kong and New Zealand" as this is the first time I've heard that New Zealand TV broadcasting was ever in anything except 625 line format, originally CCITT B&W, later PAL. Kiore ( talk) 10:59, 12 May 2008 (UTC)
I have a few questions about this which I think would be best answered by having someone knowledgeable incorporate the relevant information into the article.
Thanks. Beorhtwulf ( talk) 20:50, 23 August 2011 (UTC)
"The 405-line monochrome analogue television broadcasting system was the first fully electronic television system" ?
The first fully electronic television system was shown by Manfred von Ardenne at the Funkausstellung Berlin, 1931: [1]
Heinzelmann ( talk) 14:48, 25 October 2012 (UTC)
The BBC had two systems running from 1936; the 405-line Marconi and the 240-line Baird, each at 25fps. The Baird xmitter was switched off 13-feb-1937. 203.221.157.17 ( talk) 02:38, 10 August 2016 (UTC)
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In the early days of 405, a line 1.5 lines long was inserted at the bottom of the frame. I forget the details of why, but something to do with synchronisation. This odd sized line was dropped fairly early in 405's history. Tabby ( talk) 11:24, 26 November 2007 (UTC)
84.92.117.3 ( talk) 14:18, 11 April 2016 (UTC)Jonathan Bromley
Interesting concept but surely if would have been a lot simpler to decreace the focus voltage slightly to produce a larger spot (and hence thicker lines) ? 80.229.222.48 ( talk) 20:54, 15 March 2008 (UTC)
Can anyone give a reference or further information on the New Zealand part of "was also used for some time in Ireland, Hong Kong and New Zealand" as this is the first time I've heard that New Zealand TV broadcasting was ever in anything except 625 line format, originally CCITT B&W, later PAL. Kiore ( talk) 10:59, 12 May 2008 (UTC)
I have a few questions about this which I think would be best answered by having someone knowledgeable incorporate the relevant information into the article.
Thanks. Beorhtwulf ( talk) 20:50, 23 August 2011 (UTC)
"The 405-line monochrome analogue television broadcasting system was the first fully electronic television system" ?
The first fully electronic television system was shown by Manfred von Ardenne at the Funkausstellung Berlin, 1931: [1]
Heinzelmann ( talk) 14:48, 25 October 2012 (UTC)
The BBC had two systems running from 1936; the 405-line Marconi and the 240-line Baird, each at 25fps. The Baird xmitter was switched off 13-feb-1937. 203.221.157.17 ( talk) 02:38, 10 August 2016 (UTC)
Hello fellow Wikipedians,
I have just modified 4 external links on 405-line television system. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:
When you have finished reviewing my changes, you may follow the instructions on the template below to fix any issues with the URLs.
This message was posted before February 2018.
After February 2018, "External links modified" talk page sections are no longer generated or monitored by InternetArchiveBot. No special action is required regarding these talk page notices, other than
regular verification using the archive tool instructions below. Editors
have permission to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the
RfC before doing mass systematic removals. This message is updated dynamically through the template {{
source check}}
(last update: 5 June 2024).
Cheers.— InternetArchiveBot ( Report bug) 22:09, 22 June 2017 (UTC)