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pm
Joined: 23 Aug 2010 Posts: 85 Location: Hants UK
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| Posted: Thu Aug 26, 2010 12:24 pm Post subject: Upgrade from Sony 1252 to G70 - Small step or quantum leap?? |
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Hi,
As I've posted elsewhere, I'm new to the CRT PJ world and having fun with my 1252 driven by my HTPC at the moment.
A relatively local G70 has become available at a (relatively) cheap price. The reason for this is;
| Quote: | | Although in full working condition, all three tubes have now given 12,000 hours of service, and both the green and blue tubes are in need of replacement, as there is fairly severe burning to the phosphors of these two tubes |
I've read the primers here and although I can understand the benefits of the extra lumens, bandwidth and em vs es focusing, I have no reference to compare my own eyes with and the difference this makes in the real world.
So, my question is in the title. Is this a worthwhile step on the ultimate journey towards a 9".
I've done a quick search for tubes for this model and they don't seem as common (relatively!) as others.
Even if I can't find any tubes immediately, is this a good $200 investment for a working chassis in good condition?
Obviously, I can invest some time and money to go and view it, but I'm not sure what I'll learn if the tubes are as toasty as he thinks they are.
I'd appreciate some views to maybe help save me some time and money!
Cheers,
PM
p.s. UK based.
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Nashou66
Joined: 12 Jan 2007 Posts: 16171 Location: West Seneca NY
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emdawgz1
Joined: 14 Mar 2006 Posts: 7949
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| Posted: Thu Aug 26, 2010 2:02 pm Post subject: |
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if you can get the tubes at a good price...it's a good deal
g70 puts out a really nice picture
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Jeremy112
Joined: 28 Sep 2006 Posts: 2649 Location: Fond du Lac, WI
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| Posted: Thu Aug 26, 2010 2:06 pm Post subject: |
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definitely an upgrade over the 1252, just that your colors will be way off with the phosphor burn, like others have mentioned, if you replace the tubes, you will have quite a nice machine then
_________________ When I'm asking for a Model number, that doesn't mean I'm asking for a nude photo with your number on it
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CIR Engineering
Joined: 25 Aug 2008 Posts: 4269 Location: Chicago USA & Berlin Germany
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| Posted: Thu Aug 26, 2010 2:09 pm Post subject: |
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$200 for a running G70 is a good deal. But it won't look good with toasted tubes.
G70 is a fantastic projector and the 1252 is what it is.
craigr
_________________ JETI 1501-HiRes 2nm Spectroradiometer
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Murideo Fresco SIX-G HDMI 2.x Multimedia Generator
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pm
Joined: 23 Aug 2010 Posts: 85 Location: Hants UK
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| Posted: Thu Aug 26, 2010 3:08 pm Post subject: |
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Thanks Guys,
Looks as though it's worth a peek then....
I've sent the guy a mail, so we'll see what happens!
How about tube availability for this model? Are we taking hens teeth, or just sit and wait like for other tubes.... they'll pop up eventually...
Cheers,
PM
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draganm
Joined: 08 Mar 2006 Posts: 8990 Location: Colorado
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| Posted: Thu Aug 26, 2010 4:11 pm Post subject: |
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| pm wrote: | How about tube availability for this model? Are we taking hens teeth, or just sit and wait like for other tubes.... they'll pop up eventually...
Cheers,
PM | $650. each brand new from VDC, less for used ones and they do pop up mostly from people who couldn't sell the entire machine for a decent price. I'm not sure I would put tubes in a 12K hour G70 chassis. Part it out, make a few bucks, and keep shopping around. that's my 2 cents.
LC chambers, lneses, and C-elements are souhgt after by Barco guys. B,E,DC, and other boards are also regularly in demand.
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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: Thu Aug 26, 2010 4:23 pm Post subject: |
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Not that everybody hasn't already sort of covered this, but I'll just chime in with a little more detail since I did pretty much exactly this upgrade: 1271 to G70.
First, I had a pretty minty, low-hour 1271. It had less than 2500 hours on it, and was probably about as sharp as any 12xx ever gets unless it had brand new tubes. I'd done optical focus, electronic focus and stig pretty obsessively. What I found after all that was that the lenses on the 12xx's suck... Both the HD-8's and the PT-whatevers are incapable of resolving anything much more than 1024x768. 800x600 was better. I ran 1080i for most sources and 720p for HTPC, and while it certainly gave a nice, film-like image, it was really soft.
Enter the G70... FAR superior picture. Much sharper, way better contrast, much larger and dimmer halos which most of the time aren't even visible. The sharper thing isn't just sharper as sharper implies. It wasn't until I A-B'd between the two projectors that understood what Mike Parker meant when he talked about background detail being revealed in a sharper projector. So, huge step up between the two machines.
Still, as biased as he is against the G70, he has a point. You could probably part the G70 out and double or even triple your money. It's going to cost you at least $400-500 to buy a couple of tubes to replace the toasty tubes in the 12,000-hour machine, and then you'll still end up with a 12,000-hour machine. Of course, Curt would say with 12,000 hours on it, it's obviously a solid machine.
I'd definitely pick it up at that price. You can decide what to do with it later. Of course, I'm a hoarder, so it's easy for me to say.
SC
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rosenbush
Joined: 14 May 2010 Posts: 94 Location: Brownsville Texas
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| Posted: Thu Aug 26, 2010 5:24 pm Post subject: |
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For that price get it. Get all the good image left on it and then keep it for a spares when you get a nice one. If you don't get another G70, you still can sell some spares and get your money again.
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pm
Joined: 23 Aug 2010 Posts: 85 Location: Hants UK
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| Posted: Thu Aug 26, 2010 6:27 pm Post subject: |
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Aha,
You guys have introduced an element that I hadn't considered...........
I didn't appreciate that chassis hours are a factor as well as tube hours.
I thought a chassis was a chassis was a chassis........ only the state of the tubes was important......
| Quote: | | Of course, I'm a hoarder, so it's easy for me to say. |
You and me both..... I've got stuff that's been here for 25 years "because I think it'll be used one day"
The buying and hoarding/breaking appeals as well!
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CIR Engineering
Joined: 25 Aug 2008 Posts: 4269 Location: Chicago USA & Berlin Germany
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| Posted: Thu Aug 26, 2010 8:15 pm Post subject: |
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12k hours is not necessarily bad. Open it up and if it's full of dirt and dust that's one thing. But it is possible that it is still really clean.
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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Curt Palme CRT Tech
Joined: 08 Mar 2006 Posts: 24396 Location: Langley, BC
TV/Projector: All of them!
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| Posted: Thu Aug 26, 2010 10:42 pm Post subject: |
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$200 for a toasty tube G70 is about right at this point. It will at some point have the PA and convergence boards fail. If the C board hasn't failed since the last owner has had it, then it's about to. They run very hot.
AS mentioned above, tubes are $650 each from VDC plus about $70 shipping per tube. Finding good used ones is impossible, save for the red.
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pm
Joined: 23 Aug 2010 Posts: 85 Location: Hants UK
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| Posted: Fri Aug 27, 2010 12:25 am Post subject: |
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Thanks for that Curt.
I suppose the bottom line is whether being in for $2200 and having an "old" chassis, new tubed G70 is a good way to spend that much money?
I suppose it depends what the alternatives are.
I asked in another thread, but for a UK/Europe based guy, what would be the machine to aspire to, both in terms of performance and support of knowledge and spares in the short to medium term?
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zGman
Joined: 22 May 2006 Posts: 599
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| Posted: Fri Aug 27, 2010 3:09 am Post subject: |
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Do a search in your area for Barco 1208 or 808 models and compare prices
and condition. Barco made a lot of PJ's, parts are reasonable and reliability
is pretty good....tubes may be more available, but it is rare to find LC versions.
G
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barcoed
Joined: 26 Feb 2008 Posts: 65 Location: Cambridgeshire, UK
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| Posted: Fri Aug 27, 2010 10:47 am Post subject: |
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| Curt Palme wrote: | | ~snip~ ...Finding good used ones is impossible, save for the red. |
I've got some..!
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