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This topic comprises 2 pages: 1 2
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Author
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Topic: Philippe Laude's Screening Room
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Stephen Furley
Film God
Posts: 3059
From: Coulsdon, Croydon, England
Registered: May 2002
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posted 01-03-2003 07:55 AM
Mark wrote:
quote: P.S.: Whats with the rounded corners on the screen?
The French seem quite keen on rounded corners, many Goumont cinemas had them in the days before moveable masking, and the Pathe formats had larger radius corners to the frames than the Kodak ones. On Pathe 'Rural film the space in the corners was used to contain a small, almost square perforation, giving a relativly large frame area on the narrow (17.5mm) film.
Come to think of it, the French seem to do just about everything differently, le Cinematographe Lumière used one round perforation on each side of each frame, rather than the four rectangular ones which everyone else used. It is possible to run conventional Edison type film through a Lumière machine, I've seen it done, the pins just fit one pair of holes per frame, the third ones down I think. Just crank the handle a bit faster, mask down the gate a bit, and rig up some form of sound head, or a DTS reader would fit quite nicely on top, and you could run the latest feature on the thing.
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Mark Gulbrandsen
Resident Trollmaster
Posts: 16657
From: Music City
Registered: Jun 99
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posted 01-04-2003 05:20 AM
Bruce, No.....I don't have anything newer than 1950 so that alleviates any color sets for me.......here is a 1946 RCA 630 TS that I rebuilt several years ago though. The photo is before IF alignment but right after capacitor replacement. Round CRT it is, 10BP4, the most common crt of the era. Also they had no implosion protection built in so you have to be really careful with these babies. All of my "vintage sets have round crt's. I don't restore anything with rectangular tubes......I'll try to find the shots of my restored RCA 721TS...man, the picture on that set is sharp as a tack and both the 621 and 721 have true dc restoration to boot. RCA left that out of all sets after the 721. There is a group of guys that restore the first color sets(Westinghouse, Motorola, RCA) and they are having a hell of a time getting new electron guns manufactured for their early 15" crt's. Many tubes have lost the seal at the face plate and are not usable, although rebuildable if they can get the new guns made. Those first 15" color sets used the I-Q color decodong system, same way the studio cameras generate the color signal and they actually had superior color as compared to sets of today. The later sets went to the B-Y/G-Y, etc system of decoding as the crt's, and circuitry was easier to make. I remember replacing many of the 21" round color tubes back in my TV repair days...late 60's early 70's. 21AXP22 comes to mind....... Mark
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