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As this forum is rarely used anymore, we've locked it. Feel free to browse and read. Questions? Please reach out to us directly. Cheers! |
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ecrabb
Forum Moderator
Joined: 13 Mar 2006
Posts: 15909
Location: Utah
TV/Projector: JVC RS40, Epson 5010
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| Posted: Tue May 15, 2012 4:58 pm Post subject: |
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| uwanna wrote: | | I have never had a basically new G70 (171hrs) before, and I am just stunned with the picture vibrance and quality. In the last 20yrs, I've struggled through used 1270, 1271, several Barcos, G50s and G70s, but never knew things could look so good! |
I went from a pretty nice 1271 to a minty G70 (148 hours), so I know EXACTLY what you're talking about. I still think the picture quality is stunning. Sure, I see every little defect, and I hate the size and noise, but the picture quality is still just gorgeous.
| uwanna wrote: | | Big thanks to all who responded to my plea for help and thanks to Curt for this forum! |
Welcome to the forum, Grant!
SC
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CIR Engineering
Joined: 25 Aug 2008
Posts: 4269
Location: Chicago USA & Berlin Germany
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| Posted: Tue May 15, 2012 5:31 pm Post subject: |
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| Curt Palme wrote: | | Glad someone here could help, that's one I would have never figured out via email. |
Sure you would have Curt... you'd have sent me an email and I would have given you the info  You know I have your back!
| Curt Palme wrote: | Those are the worst, strange fingers in the set, mucking with stuff that they don't know about. 
Cheers! |
Yeah, no kidding. You should have seen the fun I had with a 1351LC about a year ago. I got her running well again but sheesh...
craigr
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CIR Engineering
Joined: 25 Aug 2008
Posts: 4269
Location: Chicago USA & Berlin Germany
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| Posted: Tue May 15, 2012 5:33 pm Post subject: |
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| ecrabb wrote: | | uwanna wrote: | | Big thanks to all who responded to my plea for help and thanks to Curt for this forum! |
Welcome to the forum, Grant!
SC |
Yeah, and please stick around because you seem to have good CRT knowledge.
craigr
_________________
JETI 1501-HiRes 2nm Spectroradiometer
JETI 1211 Spectroradiometer
Photo Research PR-650 Spectroradiometer
Klein K10-A Colorimeter
Murideo Fresco SIX-G HDMI 2.x Multimedia Generator
Murideo Fresco SIX-A HDMI 2.x Analyzer
Light Illusion ColourSpace XPT Color Calibration Software
Light Illusion LightSpace XPT Pro Version 10.x Color Calibration Software
OMARDRIS JVC Software Patch to use K10-A and Jeti with JVC OEM AutoCal Software!
Sencore CR7000 CRT Tube Analyzer / Rejuvenater
Authorized Dealer for Lumagen & just about everything worth buying
www.CIR-Engineering.com - craigr@cir-engineering.com
Phone: 865-405-6892
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uwanna
Joined: 05 Dec 2008
Posts: 17
Location: Marietta, Ga
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| Posted: Tue May 15, 2012 6:48 pm Post subject: |
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| CIR Engineering wrote: | Good
So did your old G70 have 40k hours on the original tubes? If so it must have been pretty dim compared to the new one!
craigr |
Yep, original tubes! Actually had it 10yrs, had 3500hrs when I got it and it slowly aged over the years. Funny thing, don't know if this is normal, but the chassis timer would roll back to zero somewhere between 14k and 15k hrs. it rolled back at least three times (roughly 42-45khrs) and showed an additional 6k when I shut it down. Perhaps the reason I got such a long life from the tubes is that I ran the contrast at 45-55 most of it's life. I could do that because I have one of the old Advent 7" curved screens that has a gain of 13, Yes I said 13!!! Didn't have to raise the contrast up into the 70-80 range till the last few years. The picture was still quite watchable, just not stunningly crisp and sharp.
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Spanky Ham
Joined: 22 Mar 2006
Posts: 5643
Location: Comedy Central
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| Posted: Tue May 15, 2012 9:19 pm Post subject: |
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Did you ever measure the Advent screen? I think Chuchuf measured a Vutec UHG screen at 5 or something like that. Anyway, I bet that was one bright image. I have been wanting one of those curved screens Advent, Sony or Vutec. How about I trade you a Barco 909 for your screen?  
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ecrabb
Forum Moderator
Joined: 13 Mar 2006
Posts: 15909
Location: Utah
TV/Projector: JVC RS40, Epson 5010
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| Posted: Tue May 15, 2012 9:32 pm Post subject: |
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My dad had an Advent 72" curved silver screen. Watching movies on that screen in the late-70's and early 80's is what hooked me on home theater in the first place. Source was one of the first Pioneer Laserdisc players. Ahhh, fond memories.
Anyway, I don't know about 13 gain, but I could see how it could easily be 5 gain. That thing was über-bright and highly directional. The gain curve reminded me of an RPTV... Move very far off-axis, and the brightness really went down the tubes.
Side note: The Advent curved screen and matching Advent front-projector are still in use in a basement rec-room in family friends' summer vacation cabin.
SC
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uwanna
Joined: 05 Dec 2008
Posts: 17
Location: Marietta, Ga
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| Posted: Tue May 15, 2012 10:20 pm Post subject: |
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| ecrabb wrote: | My dad had an Advent 72" curved silver screen. Watching movies on that screen in the late-70's and early 80's is what hooked me on home theater in the first place. Source was one of the first Pioneer Laserdisc players. Ahhh, fond memories.
Anyway, I don't know about 13 gain, but I could see how it could easily be 5 gain. That thing was über-bright and highly directional. The gain curve reminded me of an RPTV... Move very far off-axis, and the brightness really went down the tubes.
Side note: The Advent curved screen and matching Advent front-projector are still in use in a basement rec-room in family friends' summer vacation cabin.
SC |
Back in 1999, I was selling very high end home theater in the Atlanta Ga area ($20k-200k & more). We specialized in G70s and G90s. Ah the margins and commishions! At that time I had a 1271 with a 72" Advent curved screen at home. We took a projector in trade and an 84" Advent screen came with it. I claimed it of course and took it home. Same screen I still use today. Yes it is very bright and is really not that directional. Off axis of course it loses a little, but it is not objectional. In some literature in our tech library we had a screen comparison guide and that guide stated the Advent 84" had a gain of 13. The highest rated gain of any of them. Through the years the screen has gotten a nick here and there and I went on a crusade to find another one a few years ago. Alas no luck! Sure would love to find one. There have got to be a few lurking in a basement or garage somewhere! LOL
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