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Author
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Topic: Strong power supply poll
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Paul G. Thompson
The Weenie Man
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Posts: 4718
From: Mount Vernon WA USA
Registered: Nov 2000
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posted 08-01-2002 11:03 AM
I agree with Richard. The reliability of the switcher power supplies has increased over the years, and I don't think you will have any major problem with them as long as you keep the blowers clean so the power supplies cannot overheat. During the tour of the Strong International facilities switcher shop, the pile of switchers that were in for repairs were the older ones that have been in service for many years. Considering how many switchers are in service throughout the world, the repair pile I saw was not that significant by any standards.
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Rick Long
Jedi Master Film Handler
Posts: 759
From: Toronto, Ontario, Canada
Registered: Nov 1999
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posted 08-01-2002 11:36 PM
In my opinion, using switching rectifiers is the kindest thing you can do for your xenon bulbs. Despite some negative publicity about them in the past, I did a check against files i have from 15 years ago (damn, I never throw anything out) and the number of rectifier calls i had with reactance types are about the same.I have found that bulbs last a lot longer with switching supples. It may, however, be worth your while to keep one spare rectifier in the booth. Then again, Fairview Toronto, ran 5 theatres for 12 years with 3K switchers with never a failure.
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Don Sneed
Master Film Handler
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Posts: 451
From: Texas City, TX, USA
Registered: Aug 2001
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posted 08-03-2002 06:10 PM
I hate those Strong switcher power supplies, the 2K is ok but those 4K really bites !!! I do have to admit they are easy to change, but they are unreliable...I have suggusted to my bosses we go back using the old reliable High Reactance power supplies, an example is we open four theatres here in the state, 14-18 screens each with Switcher power supplies, 4-theatres in Japan, 10-screens each with High Reactance power supplies....no problem with the Japan theatres, but we have already changed at least 3-4 at each theatre using the switcher power supplies.....maybe you guys are having great luck with them, but I want to go back using the "Reliable High Reactane" type....Now this crappy "DC" igniter that Strong now use, that you can not manule strike....really Sucks !!! Who thought of that one....whoever did had some damn good smoke !!! I need to come party with you !!!
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