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mc86
Joined: 20 Sep 2008
Posts: 767
Location: pittsburgh, pa
TV/Projector: ECP 4500 (Vidikron box), ECP4500+, wanting 07MS/07MTS, evaluating pc soft-blend
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| Posted: Sat May 12, 2012 6:00 pm Post subject: History Q: Ampro 4000 |
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I didn't want to hijack/sidetrack Don's thread and didn't find an answer on searching. Are the tubes simply over-capable of resolving 1080i and the electronics simply not capable? Was this a way to do very little redesign to use a 2000 chassis and compete with the M8100s? What's the story. This is neat. Jeremy? Others?
I certainly know I would miss this question on a the CRT PJ Enthusiast's Entry Exam:
"Circa 1992 Ampro began offering the 4000 series projectors. These feature 9" tubes and are Liquid Coupled. The machine does not have EM focus and is capable of displaying 1080i. Discuss this machine's performance characteristics, unique attributes, and originally targeted niche in the marketplace"
You guys can add you own questions...provided they are not trivia and are at least semi-factually based! 
Finally, am I missing the Ampro 2300 and 2600 7" EM sets in the PJ rankings list?
Cheers,
Matt
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AnalogRocks
Forum Moderator
Joined: 08 Mar 2006
Posts: 26706
Location: Toronto, Ontario, Canada
TV/Projector: Sony 1252Q, AMPRO 4000G
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| Posted: Sat May 12, 2012 6:15 pm Post subject: |
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I've run 1080i into my 4000. Depending on the input card you may get some flagging
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CRT.
HD done right!
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mc86
Joined: 20 Sep 2008
Posts: 767
Location: pittsburgh, pa
TV/Projector: ECP 4500 (Vidikron box), ECP4500+, wanting 07MS/07MTS, evaluating pc soft-blend
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| Posted: Sat May 12, 2012 6:26 pm Post subject: |
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| AnalogRocks wrote: | | I've run 1080i into my 4000. Depending on the input card you may get some flagging |
Did you mean 1080p? I saw where you wrote before 1080i/96 and 72 worked and that shortly after 1080p bad things happened...overheating?
Anyway, any idea what was the story of these (to today's thinking lower-end) 9"LC machines a few years before the Marquees, etc.?
Matt
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gjaky
Joined: 05 Jun 2010
Posts: 2802
Location: Budapest, Hungary
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km987654
Joined: 25 Jul 2007
Posts: 2874
Location: Australia
TV/Projector: Barco BG809s
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| Posted: Sun May 13, 2012 3:31 am Post subject: Re: History Q: Ampro 4000 |
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| mc86 wrote: | I didn't want to hijack/sidetrack Don's thread and didn't find an answer on searching. Are the tubes simply over-capable of resolving 1080i and the electronics simply not capable? Was this a way to do very little redesign to use a 2000 chassis and compete with the M8100s? What's the story. This is neat. Jeremy? Others?
I certainly know I would miss this question on a the CRT PJ Enthusiast's Entry Exam:
"Circa 1992 Ampro began offering the 4000 series projectors. These feature 9" tubes and are Liquid Coupled. The machine does not have EM focus and is capable of displaying 1080i. Discuss this machine's performance characteristics, unique attributes, and originally targeted niche in the marketplace"
You guys can add you own questions...provided they are not trivia and are at least semi-factually based!
Finally, am I missing the Ampro 2300 and 2600 7" EM sets in the PJ rankings list?
Cheers,
Matt |
SD-146A tubes will not dosplay 1080P they simply give you a black screen. They will however display a very nice 1080i. They can also display 1080i 96 but the CR is not very good at that frequency.
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AnalogRocks
Forum Moderator
Joined: 08 Mar 2006
Posts: 26706
Location: Toronto, Ontario, Canada
TV/Projector: Sony 1252Q, AMPRO 4000G
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| Posted: Sun May 13, 2012 3:41 am Post subject: |
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| mc86 wrote: | | AnalogRocks wrote: | | I've run 1080i into my 4000. Depending on the input card you may get some flagging |
Did you mean 1080p? I saw where you wrote before 1080i/96 and 72 worked and that shortly after 1080p bad things happened...overheating?
Anyway, any idea what was the story of these (to today's thinking lower-end) 9"LC machines a few years before the Marquees, etc.?
Matt |
at 1080p the projector blew up, took out the LVPS, HVPS and the main power here left me in the dark  it was fun.
I run it at 64khz of the line quadrupler just fine now. The kaboom was due to some bad neck cards.
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CRT.
HD done right!
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