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Vintage Television and Video Vintage television and video equipment, programmes, VCRs etc. |
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26th May 2018, 1:50 pm | #81 | |
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Re: TV system differences?
Quote:
I think they tipped off their own manufacturers first thongh! IMHO the SCART was one of the worst designed multiway connectors ever. Incidentally, I believe Thomson made at least one 625/819 line dual standard receiver for the Belgian market at one time. The (U.K.) company I worked for had some of these with the 819 line components not fitted, but marked on the P.C.B. screen print. Tony. |
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26th May 2018, 2:51 pm | #82 |
Hexode
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Re: TV system differences?
The uncontestable advantage of the SCART connector was its extremely low cost which was, argueably, pretty well the only criterion being used in the industry at the time
J |
26th May 2018, 2:58 pm | #83 |
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Re: TV system differences?
My late uncle had a dual standard TV (I forget the make) with a six-position turret tuner providing two Band I, two Band III, and two UHF preset stations. He got rid of it after the 405 line switch-off as it was too much hassle fiddling with the UHF tuning control to watch all the three channels receivable in the London area.
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26th May 2018, 5:25 pm | #84 |
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Re: TV system differences?
It appears that was the Pye\Ekco Integrated tuner, pity, a quick change of the programming of the mechanism would have given him the required channels.
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27th May 2018, 9:04 am | #85 |
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Re: TV system differences?
Re my post #81 (above), which refers to Richard FM's post#58.
About three 'clock this morning I awoke having remembered the dual standard (625/819) sets I had encountered were NOT Thomson, but Siemens model FC211. They were very reliable, if I remember rightly. Tony. |
27th May 2018, 11:38 am | #86 |
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Re: TV system differences?
At least we only need to do a rescan these days!
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8th Jun 2018, 8:25 pm | #87 |
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Re: TV system differences?
I was wondering if dual standard 405 / 625 sets were made for the Irish market in the early 1960s, before BBC2 started in 1964.
Later on, were triple standard sets made for use in Ireland, capable of receiving 405 VHF, 625 VHF & 625 UHF made? Apart from Hong Kong (cable only) did anywhere else use 405 lines? I had a feeling Gibraltar did, but can only find 625 lines standard B/G listed. |
8th Jun 2018, 10:02 pm | #88 |
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Re: TV system differences?
I don't think the ability of a set to tune in VHF/625 was considered a third system. Philips made a four button mechanical tuner with a nylon switch corresponding to each button for setting the band/line std. Very useful in council flats with all VHF distribution.
I'm trying to remember if it even allowed 405/UHF, someone will no doubt remind me
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8th Jun 2018, 10:16 pm | #89 |
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Re: TV system differences?
Sony 9-90 does all four permutations.
Peter |
8th Jun 2018, 10:34 pm | #90 |
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Re: TV system differences?
The dual standard Ferguson that my mum bought in 1969 had a link on the printed circuit board for selecting VHF 625 line reception.
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8th Jun 2018, 10:55 pm | #91 |
Octode
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Re: TV system differences?
I see there was also a version for 625 / 819 lines.
https://www.radiomuseum.org/r/sony_t...um_tv990u.html Was there a 525 / 625 line one as well? |
9th Jun 2018, 9:03 am | #92 |
Hexode
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Re: TV system differences?
Sony made the TV 110uwe model for 525 and 625 lines,as far as I know there wasn't
a TV990 525/625 version. https://www.radiomuseum.org/r/sony_t...e_tv110uw.html The nearest single standard 525 line version of the TV 990 is the TV920U. There was also a single standard Western European variation (system B). |
9th Jun 2018, 9:20 am | #93 |
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Re: TV system differences?
625 line VHF and 625 line UHF were not two different standards - system 'I' does not specify frequency bands - its just that in GB for legacy reasons (ie 405 line system occupying VHF bands) it was only used at UHF while in Ireland DS sets typically had 405 & 625 line VHF initially with UHF being introduced later as additional services required more spectrum
J |
9th Jun 2018, 1:00 pm | #94 |
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Re: TV system differences?
I've heard that Zenith in the USA had a range of simple modifications to allow their VHF only sets to pick up a single UHF channel.
I presume in countries where UHF was introduced at a later stage set top boxes were introduced for older TVs, like the band III ones here. |
9th Jun 2018, 3:49 pm | #95 |
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Re: TV system differences?
Page 45 describes one of the simple system devised to receive UHF in the USA with a cheap addition to a suitable VHF tuner.
Set top boxes were also available in the USA for UHF reception. https://www.americanradiohistory.com...cs-1960-01.pdf
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9th Jun 2018, 4:06 pm | #96 |
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Re: TV system differences?
I actually have an RCA version of that tuner but unfortunately, no UHF 'channel strips' which had to have been purchased separately.
Outboard 'set-top' box UHF converters were indeed introduced in the US and throughout continental Europe where no change of standard was involved - just adding additional frequency capability as in the case of BIII converters in Britain J |
9th Jun 2018, 4:11 pm | #97 |
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Re: TV system differences?
USA UHF converter, page 15
https://www.americanradiohistory.com...cs-1952-05.pdf
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9th Jun 2018, 8:24 pm | #98 |
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Re: TV system differences?
Even the relatively-modern analogue set I had before inheriting a digital one included VHF channels in its automatic search.
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9th Jun 2018, 9:08 pm | #99 |
Octode
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Re: TV system differences?
The Philips set I bought in 2001 had this feature, & even had a table of channel frequencies for different countries in the hand book.
My 2 digital TVs can also tune into VHF. |
9th Jun 2018, 10:34 pm | #100 |
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Re: TV system differences?
My multi standard Icecrypt T5000 STB searches Band III VHF before searching UHF when I need to retune.
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