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Television Standards Converters, Modulators etc Standards converters, modulators anything else for providing signals to vintage televisions. |
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Thread Tools |
6th Mar 2012, 11:48 am | #41 | ||
Rest in Peace
Join Date: Nov 2010
Location: North Hykeham, Lincolnshire, UK.
Posts: 515
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Re: IMOGen Test Card & Teletext Generator
Quote:
Quote:
I know what you mean about the page numbers - we used 14 lines for the test pages and bridged BBC1 CEEFAX onto the remaining two. CEEFAX was used to create interest and demonstrate the capabilities of Teletext but, in reality, the primary purpose was to test the capability of a large, private, cable TV system by means of an error counter piggy-backed onto the TIfax decoder. Agreed, but it wasn't a problem with the Philips generator as the row numbers were included in the data. It was simply a case of re-ordering the data before burning the PROM. |
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6th Mar 2012, 11:31 pm | #42 |
Hexode
Join Date: Jan 2005
Location: Waterford, Republic of Ireland
Posts: 259
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Re: IMOGen Test Card & Teletext Generator
Excellent work Parabola! (I want one!)
This thread has reminded me to root out a S-VHS tape and record the Irish analogue stations teletext before ASO in August this year |
8th Mar 2012, 12:08 am | #43 |
Retired Dormant Member
Join Date: Sep 2008
Location: London, UK.
Posts: 117
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Re: IMOGen Test Card & Teletext Generator
Thanks, Andy.
Well, it's possible that there may be a spare from the initial build of 10 units, once everything shakes out. If so I'll let you know. I would possibly build more if there were to be any demand, but the PCB already needs redesigning due to one component becoming obsolete in through hole form. |
8th Mar 2012, 4:48 pm | #44 |
Administrator
Join Date: Dec 2002
Location: Cardiff
Posts: 9,071
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Re: IMOGen Test Card & Teletext Generator
You can get SMT to through-hole adaptors for some IC packages. That may be an easier/cheaper option than redesigning the PCB.
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9th Mar 2012, 10:37 am | #45 |
Retired Dormant Member
Join Date: Sep 2008
Location: London, UK.
Posts: 117
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Re: IMOGen Test Card & Teletext Generator
Thanks, Paul. Yes, that's certainly another option.
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2nd Nov 2012, 3:06 pm | #46 |
Nonode
Join Date: May 2006
Location: St Albans, Herts, UK.
Posts: 2,193
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Re: IMOGen Test Card & Teletext Generator
Well you can now!
http://www.pges.co.uk/imogen/index.html I was contacted about using my photos of my Korting showing test cards from the IMOGen and of course I said yes and they're here on his website along with plenty of information about the test card generator. Cheers, Tas |
23rd Nov 2012, 4:11 pm | #47 |
Octode
Join Date: Jan 2007
Location: Dorridge, West Midlands, UK.
Posts: 1,483
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Re: IMOGen Test Card & Teletext Generator
I have just taken delivery of my Imogen from Graham, very impressed and seems a bargain to me. Very useful alongside an Aurora and great fun being able to get Text back on my colour TVs. For more info have a look at the website in the link above.
A happy customer Chris |
23rd Nov 2012, 11:21 pm | #48 |
Hexode
Join Date: Dec 2006
Location: Bromley, Kent, UK.
Posts: 332
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Re: IMOGen Test Card & Teletext Generator
I have also just taken delivery of my Imogen from Graham and it is a super piece of kit ! which I can well recommend ,
I have attached a few photos but they do not do it justice, perhaps it means that some full 625 restorations are in order now that I have been dragged screaming into 1967 ! another very happy customer peter |
24th Nov 2012, 1:30 am | #49 |
Hexode
Join Date: Oct 2012
Location: London, UK.
Posts: 498
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Re: IMOGen Test Card & Teletext Generator
I took delivery of one last week as well. I'm delighted with it as well.
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