405 v 625 Line Colour - Page 4 - UK Vintage Radio Repair and Restoration Discussion Forum

ppppenguin · 8th May 2012, 6:18 pm

Pilkington did consider colour. I don't have a copy of the report but when I have time I can look at Briggs Vol 5 to get a BBC centric view of the results.

Thre are 2 separate questions here. 405 or 625. PAl or NTSC or SECAM. I don't have Briggs' book on the history of colour TV but this would be a very good starting point for answering these questions.

Davewantsone · 8th May 2012, 6:25 pm

Like I said they did consider colour but came to no decision.

SteveCG · 8th May 2012, 6:59 pm

Have seen arjoll's TV aerial made my mind wander to the performance of these colour systems when receiving on/beyond the fringe. As we all know Band I signals can go a long way, so I wonder how acceptable NTSC 405 line would have been in comparison 625 line PAL on Band I on the reception edge? Certainly in the days of Band I DX it was noticable how quickly SECAM signals lost their noise as the signal strength rose above the SECAM FM threshold.

murphyv310 · 8th May 2012, 7:24 pm

Quote:

Originally Posted by Davewantsone

ITV in 1965 was still keen to launch 405 line colour TV. The Labour party put the boot in on that idea!

Lets not get into a political debate here! I am an out and out socialist and saying that the Labour party put the boot in really is not for a public forum on vintage electronics! I wonder where you have got the opinion that a political party would actually decide on what TV standard we were going to have? Most MP's couldn't even wire a 13amp plug (more so the Tory ones), in cases like this they are more or less told by advisers!

paulsherwin · 8th May 2012, 8:22 pm

I think the time has come to close this thread, which isn't really going anywhere.

8th May 2012, 6:18 pm	#61
ppppenguin Retired Dormant Member Join Date: Dec 2003 Location: North London, UK. Posts: 6,168	Re: 405 v 625 Line Colour Pilkington did consider colour. I don't have a copy of the report but when I have time I can look at Briggs Vol 5 to get a BBC centric view of the results. Thre are 2 separate questions here. 405 or 625. PAl or NTSC or SECAM. I don't have Briggs' book on the history of colour TV but this would be a very good starting point for answering these questions.

8th May 2012, 6:25 pm	#62
Davewantsone Hexode Join Date: Dec 2011 Location: Wigan, Greater Manchester, UK. Posts: 291	Re: 405 v 625 Line Colour Like I said they did consider colour but came to no decision.

8th May 2012, 6:59 pm	#63
SteveCG Nonode Join Date: Jun 2009 Location: Herefordshire, UK. Posts: 2,495	Re: 405 v 625 Line Colour Have seen arjoll's TV aerial made my mind wander to the performance of these colour systems when receiving on/beyond the fringe. As we all know Band I signals can go a long way, so I wonder how acceptable NTSC 405 line would have been in comparison 625 line PAL on Band I on the reception edge? Certainly in the days of Band I DX it was noticable how quickly SECAM signals lost their noise as the signal strength rose above the SECAM FM threshold.

8th May 2012, 8:22 pm	#65
paulsherwin Moderator Join Date: Jun 2003 Location: Oxford, UK Posts: 28,012	Re: 405 v 625 Line Colour I think the time has come to close this thread, which isn't really going anywhere.