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akajester
Joined: 09 Jul 2008
Posts: 934
Location: Wisconsin
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| Posted: Tue Sep 01, 2009 8:08 pm Post subject: Upgrade BG808 to BG808s worth it? |
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I'm debating upgrading from a graphics 808 to graphics 808s. Is it worth the upgrade for $300?
Thanks!
Last edited by akajester on Wed Sep 02, 2009 12:14 am; edited 1 time in total
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jantje112
Joined: 17 Jul 2006
Posts: 328
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| Posted: Tue Sep 01, 2009 8:20 pm Post subject: |
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Both in the same condition?
I would say no, not worth the effort.
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HaydnG90
Joined: 22 May 2006
Posts: 1356
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| Posted: Tue Sep 01, 2009 8:33 pm Post subject: |
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Better off retubing the 808 with P16 tubes. If something happens to those Sony tubes you'll have a tough time finding replacements at a reasonable cost.
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akajester
Joined: 09 Jul 2008
Posts: 934
Location: Wisconsin
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| Posted: Tue Sep 01, 2009 9:14 pm Post subject: |
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| jantje112 wrote: | Both in the same condition?
I would say no, not worth the effort. |
Current BG808 is 5300 hours with slight green burn
BG808s is 2500 hours with no burn
Thanks for the comments!
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telecine
Joined: 08 Jan 2008
Posts: 23
Location: London
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| Posted: Tue Sep 01, 2009 9:15 pm Post subject: |
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I probably would have said don't bother up until a few weeks ago. I was recently given a BD808s and already had a BG808 (non s) that I'd been using for a couple of years.
The g808 had almost new (and colour filtered) tubes, and the D808s had fried tubes and 20k on the clock with the original tubes and a suspect quadrupler.
After a bit of thought I decided that I'd like to keep the stepless scheimpflug of the graphics, and everything else from the d808s apart from the quad.
I therefore ripped out the tubes from the data , and also their mounts, and replaced them with the equivalents from the graphics, leaving me with a bd808s with stepless scheimpflug and colour filtered tubes (in the glycol).
Once set up the first thing I noticed was how much "quieter" the image was with much less video noise. I'd already modified the end stage cards in the G808 with an idea I piched from Ile. This involves adding series inductance to clean up the supply rails. Once I'd installed these into the hybrid set the noise floor was very low indeed.
Anyway back to the point. The s vs non s debate. On screen the noise factor was pretty much the only visible difference, but of course you gain component inputs (albeit up to 576p only) and more software adjustments. The most useful of which I would say is the gamma adjustment for colour balance. That's about it though.
You certainly won't see a night and day difference between the two, but there is an improvement as outlined above.
I'd think twice about the Sony tubes though.
$300? at least you'd have a lot of spares that are interchangeable.
Hope this helps.
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akajester
Joined: 09 Jul 2008
Posts: 934
Location: Wisconsin
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| Posted: Tue Sep 01, 2009 10:09 pm Post subject: |
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I can only do 1080i on my bg808 right now. I noticed the bandwidth of the "S" model is significantly higher. Would that allow me 1080p over port 3? Also I have color filtered lenses on my bg808 and I'd think those would easily swap over.
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Ile
Joined: 09 Mar 2006
Posts: 1491
Location: Jyväskylä, Finland
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| Posted: Wed Sep 02, 2009 6:01 pm Post subject: |
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| akajester wrote: | | I can only do 1080i on my bg808 right now. I noticed the bandwidth of the "S" model is significantly higher. Would that allow me 1080p over port 3? Also I have color filtered lenses on my bg808 and I'd think those would easily swap over. |
BG808s use same old port3 what you have in 808, but still it's tab sharper because end off signal way is better. Port5 gives sharper and cleaner image with 1080p in BG808s. 1:1 pixels was pretty clear with 1080p/72Hz in my BG808s. 1080i96Hz is more stable and fans run quieter so I ended using it.
If your 808 have streaking problem, BG808s would be upgrade also in that aspect.
When you have burned those Sony tubes, you can mod neck cards to eat MEC tubes. 
Telecines comparison is not exatly same because Data 808s have same 75MHz rgb amps what 808. Graphics 808s have better 120MHz rgb amps.
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akajester
Joined: 09 Jul 2008
Posts: 934
Location: Wisconsin
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| Posted: Wed Sep 02, 2009 8:50 pm Post subject: |
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Thanks as always for the info Ile. so if I could get 1080p over port 5 this would be a significant upgrade over 720p on port 3. It would take me a long time to eat through tubes with 2500 hours on them!
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secstate
Joined: 20 Mar 2006
Posts: 720
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| Posted: Wed Sep 02, 2009 11:56 pm Post subject: |
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I think it is worth the upgrade cost for the better condition tubes. The 120 MHz boards are a step and you get an improved video chain. Stepless Schiemplflug may net you some better corner focus. Plus you can keep your old proejctor for spares (though a lot less of the parts swap between the S and non-S versions than you might think) or sell off some of the parts to offset your costs.
That said you only asked about cost, if you already have your Data mounted in dialed in I might have to think a bit harder about that.
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akajester
Joined: 09 Jul 2008
Posts: 934
Location: Wisconsin
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| Posted: Thu Sep 03, 2009 1:00 am Post subject: |
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I would be upgrading from a BG808 (5300 hrs & visible green burn) to a BG808s (2500 hrs no burn). The current one is mounted but I'm having left edge convergence issues that I haven't been able to solve. I'm running 720p via port 3 from a HTPC. I've run up to 1080i but my left edge issues get much worse. I already have scheimpflug adjustments, but have issues getting the blue and red focused well. I'm running HD 144 color filtered lenses that should swap to the newer unit. I also have a buyer for my current projector if I choose to upgrade.
Secstate, now what do you think?
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akajester
Joined: 09 Jul 2008
Posts: 934
Location: Wisconsin
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| Posted: Thu Sep 03, 2009 6:54 pm Post subject: |
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thanks for all the info everyone. I'm going to jump on the deal. Seems like a decent enough upgrade for me to warrant trying it!
They bought it for $2000 2-3yrs ago. I wonder if they got it from Curt?
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secstate
Joined: 20 Mar 2006
Posts: 720
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| Posted: Fri Sep 04, 2009 2:39 pm Post subject: |
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| akajester wrote: | I would be upgrading from a BG808 (5300 hrs & visible green burn) to a BG808s (2500 hrs no burn). The current one is mounted but I'm having left edge convergence issues that I haven't been able to solve. I'm running 720p via port 3 from a HTPC. I've run up to 1080i but my left edge issues get much worse. I already have scheimpflug adjustments, but have issues getting the blue and red focused well. I'm running HD 144 color filtered lenses that should swap to the newer unit. I also have a buyer for my current projector if I choose to upgrade.
Secstate, now what do you think? |
I would go for it. Though nearly every Barco I had was always harder to dial in on the left (when ceiling mounted) side of the screen. S-models are actually a bit worse in this regard in my experience and I have had a Barco Data 808s, 1208s/2 and now 1209s (Runco 1100).
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akajester
Joined: 09 Jul 2008
Posts: 934
Location: Wisconsin
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| Posted: Fri Sep 04, 2009 6:35 pm Post subject: |
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| secstate wrote: | | akajester wrote: | I would be upgrading from a BG808 (5300 hrs & visible green burn) to a BG808s (2500 hrs no burn). The current one is mounted but I'm having left edge convergence issues that I haven't been able to solve. I'm running 720p via port 3 from a HTPC. I've run up to 1080i but my left edge issues get much worse. I already have scheimpflug adjustments, but have issues getting the blue and red focused well. I'm running HD 144 color filtered lenses that should swap to the newer unit. I also have a buyer for my current projector if I choose to upgrade.
Secstate, now what do you think? |
I would go for it. Though nearly every Barco I had was always harder to dial in on the left (when ceiling mounted) side of the screen. S-models are actually a bit worse in this regard in my experience and I have had a Barco Data 808s, 1208s/2 and now 1209s (Runco 1100). |
I cheated and shifted the picture to the left a few inches and blanked it. So, I miss a little of my desktop on the left side, but at least when you watch video you don't notice the convergence issues there.  I should have the projector next weekend!
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akajester
Joined: 09 Jul 2008
Posts: 934
Location: Wisconsin
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| Posted: Sat Sep 12, 2009 12:25 am Post subject: |
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The bg808s shows up tomorrow! I'm so excited, it's like christmas eve! Is that wrong?
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perisoft
Joined: 29 Aug 2007
Posts: 2920
Location: Ithaca, NY
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| Posted: Sat Sep 12, 2009 7:58 pm Post subject: |
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| akajester wrote: | | secstate wrote: | | akajester wrote: | I would be upgrading from a BG808 (5300 hrs & visible green burn) to a BG808s (2500 hrs no burn). The current one is mounted but I'm having left edge convergence issues that I haven't been able to solve. I'm running 720p via port 3 from a HTPC. I've run up to 1080i but my left edge issues get much worse. I already have scheimpflug adjustments, but have issues getting the blue and red focused well. I'm running HD 144 color filtered lenses that should swap to the newer unit. I also have a buyer for my current projector if I choose to upgrade.
Secstate, now what do you think? |
I would go for it. Though nearly every Barco I had was always harder to dial in on the left (when ceiling mounted) side of the screen. S-models are actually a bit worse in this regard in my experience and I have had a Barco Data 808s, 1208s/2 and now 1209s (Runco 1100). |
I cheated and shifted the picture to the left a few inches and blanked it. So, I miss a little of my desktop on the left side, but at least when you watch video you don't notice the convergence issues there. I should have the projector next weekend! |
The upper left is always a bitch for me on my bg808s - it always tweaks up a bit. Depends on the rest of the setup, though - sometimes you can get it almost perfect, and sometimes it's awful. Haven't quite figured out what it is.
Ends up being a compromise between having subtly wavy geometry all across the top, and being able to converge easily, or having this damn point sticking up on the left and having some convergence issues there, depending.
Seagull correction just makes it worse, naturally. If I had the scratch, I'd get a CoG board to nail it.
_________________
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secstate
Joined: 20 Mar 2006
Posts: 720
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| Posted: Sat Sep 12, 2009 8:25 pm Post subject: |
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| perisoft wrote: |
Seagull correction just makes it worse, naturally. If I had the scratch, I'd get a CoG board to nail it. |
CoG doesn't help in my experience as both my Data 808s and Runco 1100 had the board and while it helps with many things it didn't help me with getting red and green aligned. Funny blue is never the problem. That said your problem sound a bit different than mine.
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akajester
Joined: 09 Jul 2008
Posts: 934
Location: Wisconsin
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| Posted: Sat Sep 12, 2009 8:35 pm Post subject: |
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did a rough setup with 1080p and I can still see the scanlines using port 5, sweet! no left problems now which is great. It has some blue burnin but way better than my green burnin! default color balance is way WAY off, will have to play with that tonight. so far it was worth the effort.
Thanks everyone!
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