Vinyl to Digital
in [UK Mac]
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From: Woody on 16 Mar 2010 08:15 T i m <news(a)spaced.me.uk> wrote: > So, by the time She'd locked up and joined him in the car he's got it > all working and they 'enjoyed' the particular CD of his I'd previously > ripped for him, all the way to their destination. > > "Slowly slowly ... " ;-) Sometimes things have to happen at their speed! -- Woody
From: Peter Ceresole on 16 Mar 2010 08:22 T i m <news(a)spaced.me.uk> wrote: > Ho hum indeed (been there, carried that box out to the pavement). Apparently those boxes being carried out of Lehman's when they collapsed mostly contained sandwiches. Not sekrit papers... -- Peter
From: Adrian Tuddenham on 16 Mar 2010 08:28 Peter Ceresole <peter(a)cara.demon.co.uk> wrote: > Adrian Tuddenham <adrian(a)poppyrecords.invalid.invalid> wrote: > > > I was told that it caused a dispute among the unions which was the exact > > opposite from the usual "who does what" dispute - it was such a pig of a > > thing to operate that nobody wanted the job of working it. > > Oh yes, that's the one. > > I'd vaguely forgotten about it, except for what I wrote here. I saw it > being used and I remember that it gave remarkably good and sharp > pictures, extremely bright, and for the time was pretty well miraculous. > And because of the horror of the setup and the massive kit, was > effectively unusable except as a permanent installation, as at NASA. > > I'd talked it through with the attendant techie at the time, and now > I've Wikied it I must say his description was remarkably good (spinning > disk of liquid and all)- and the fact that it stuck for 45 years seems > to prove it... I believe the biggest problem was caused by the vapour from the oil film. The ions from it bombarded the cathode, which only had a very limited life. There were spare cathodes within the vacuum envelope which could be swung into place by means of a magnet from outside the tube neck, but when they were used up the whole thing had to be opened up to replace them. It then took ages to pump down again to the required vacuum. The cathodes had a nasty habit of failing just before transmission, so stomach ulcers became a hazard of the job. >I never consciously saw the colour versions, although the thought of >aligning a triple-projector setup sounds quite nightmarish. Let alone >(AAAAAARRRRGH!) a colour disc system... I didn't realise that there had been a colour version. it must have had three separate discs, rather than frame-sequential scanning, because the image lag time on the oil film was quite long. -- ~ Adrian Tuddenham ~ (Remove the ".invalid"s and add ".co.uk" to reply) www.poppyrecords.co.uk
From: Graeme on 16 Mar 2010 09:10 In message <1jfg49u.9bk42m14ih108N%peter(a)cara.demon.co.uk> peter(a)cara.demon.co.uk (Peter Ceresole) wrote: > Adrian Tuddenham <adrian(a)poppyrecords.invalid.invalid> wrote: > > > I was told that it caused a dispute among the unions which was the exact > > opposite from the usual "who does what" dispute - it was such a pig of a > > thing to operate that nobody wanted the job of working it. > > Oh yes, that's the one. > > I'd vaguely forgotten about it, except for what I wrote here. I saw it > being used and I remember that it gave remarkably good and sharp > pictures, extremely bright, and for the time was pretty well miraculous. > And because of the horror of the setup and the massive kit, was > effectively unusable except as a permanent installation, as at NASA. > > I'd talked it through with the attendant techie at the time, and now > I've Wikied it I must say his description was remarkably good (spinning > disk of liquid and all)- and the fact that it stuck for 45 years seems > to prove it... > > I never consciously saw the colour versions, although the thought of > aligning a triple-projector setup sounds quite nightmarish. Let alone > (AAAAAARRRRGH!) a colour disc system... The monochrome version was used on Z Cars, usually two, one showing the side view and one the rear view. It needed one of the larger studios (usually TC6) to get them both in and still have room for all the other sets. When the programme went colour they switched to CSO (Chromakey) which took up a lot less space. Can't remember ever seeing the colour projector in use. -- Graeme Wall My genealogy website <www.greywall.demon.co.uk/genealogy/>
From: Peter Ceresole on 16 Mar 2010 10:07
Adrian Tuddenham <adrian(a)poppyrecords.invalid.invalid> wrote: > I didn't realise that there had been a colour version. it must have had > three separate discs, rather than frame-sequential scanning, because the > image lag time on the oil film was quite long. According to the Wikipedia article, there was a sequential scan+rotating filter version, then finally a 3xspinning disc version. Never consciously saw either of those, although there were some fairly massive projected TV images at the 1970 (I think) Swiss national fair at Lausanne, and it's possible that these were colour Eidophor. Seeing as it was a Swiss system... -- Peter |