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CRT vs. Digital - Again, sorry

 
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tri_joel



Joined: 03 Jul 2007
Posts: 646
Location: Northern Virginia

Posted: Sun Mar 16, 2008 11:51 pm    Post subject: CRT vs. Digital - Again, sorry

This question has been bugging me for some time so I'm going to ask you all for your opinions.

I started wit han ECP 4100. I didn't have much luck with it. I stumbled onto a PG9+ with a Crystal View scaler. The price was right, the PG was listed as not working, but I bought it sight unseen because of the price. When I picked it up, I didn't even look at the tube wear. I was really buying the scaler. The seller had moved on to digital. I asked what he thought of his digital, he stated he really couldn't tell a difference.

I decided to play with the PG and with very little effort, it turned on and has been working fine. The only thing wrong with it is the amount of tube wear is annoying. Whites are pink, flesh tones are bad, and the previous owner was using very little of the phosphor. At one point I moved the PJ back and centered my pic in the wear. It gave a nice even dark picture and all the colors were wrong. I toyed with setting the ECP back up but the picture is so soft compared to the PG, I decided the bad colors were better than the soft pic.

I emailed Curt about new tubes, I didn't know that the PG tubes were so hard to find. There was a set for sale on this site not so long ago, but I didn't have the money at that time to get them. I am not in any hurry, which means I have had a lot of time to think and dwell on this.

CRTs are becoming cheaper but I think this a momentary thing. Those of us who have them are parting them out and what not. They will become more scarce and the price, I think, will come up again. Digitals, on the other hand, are becoming more affordable. It would cost me $1500 to have my tubes rebuilt. Will they last for 4500 hours and then become bad again? I figure watching two movies on weekends will equal about 1000 hours per year, or rebuilding tubes every four years at $1500 a pop (or more with inflation). In that case, it would be better to buy a digital and then replace the bulb for a few hundred dollars in the same amount of time.

My picture sucks right now. I'm concerned that the digital picture will suck just as much. The guy I bought the PG from said he couldn't tell the difference between the pic with the burned tubes and the digital. I wish I would have asked which digital he bought, but alas, I did not.

I know this has been discussed in detail several times on this forum. Some have moved to digital, some will be buried with their CRTs. My question is, should I stick with the CRT or spend my $1500 on a digital? I can't seem to make up my own mind on this topic.
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Curt Palme
CRT Tech


Joined: 08 Mar 2006
Posts: 24396
Location: Langley, BC

TV/Projector: All of them!

Posted: Sun Mar 16, 2008 11:58 pm    Post subject:

It's simple.

CRT = repairable
digital - throwaway.

CRT= 20 years of life from new
digital = 4 years of life from new.

I have had good luck with the PG and PG+ rebuilt tubes from VDC, less so with the later P16 tubes in the Xtra and XGs (but those have new tubes available from VDC.

Set the projector up closer to the screen so you use more phosphor area than what NEC recommends, and you'll get 7500+ hours out of the tubes. You'll have a convergence and focus board failure in the next 5 years, they fail often, but they are cheap and easy to repair.
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AnalogRocks
Forum Moderator


Joined: 08 Mar 2006
Posts: 26706
Location: Toronto, Ontario, Canada

TV/Projector: Sony 1252Q, AMPRO 4000G

Posted: Sun Mar 16, 2008 11:59 pm    Post subject: Re: CRT vs. Digital - Again, sorry

tri_joel wrote:
This question has been bugging me for some time so I'm going to ask you all for your opinions.

I started wit han ECP 4100. I didn't have much luck with it. I stumbled onto a PG9+ with a Crystal View scaler. The price was right, the PG was listed as not working, but I bought it sight unseen because of the price. When I picked it up, I didn't even look at the tube wear. I was really buying the scaler. The seller had moved on to digital. I asked what he thought of his digital, he stated he really couldn't tell a difference.

I decided to play with the PG and with very little effort, it turned on and has been working fine. The only thing wrong with it is the amount of tube wear is annoying. Whites are pink, flesh tones are bad, and the previous owner was using very little of the phosphor. At one point I moved the PJ back and centered my pic in the wear. It gave a nice even dark picture and all the colors were wrong. I toyed with setting the ECP back up but the picture is so soft compared to the PG, I decided the bad colors were better than the soft pic.

I emailed Curt about new tubes, I didn't know that the PG tubes were so hard to find. There was a set for sale on this site not so long ago, but I didn't have the money at that time to get them. I am not in any hurry, which means I have had a lot of time to think and dwell on this.

CRTs are becoming cheaper but I think this a momentary thing. Those of us who have them are parting them out and what not. They will become more scarce and the price, I think, will come up again. Digitals, on the other hand, are becoming more affordable. It would cost me $1500 to have my tubes rebuilt. Will they last for 4500 hours and then become bad again? I figure watching two movies on weekends will equal about 1000 hours per year, or rebuilding tubes every four years at $1500 a pop (or more with inflation). In that case, it would be better to buy a digital and then replace the bulb for a few hundred dollars in the same amount of time.

My picture sucks right now. I'm concerned that the digital picture will suck just as much. The guy I bought the PG from said he couldn't tell the difference between the pic with the burned tubes and the digital. I wish I would have asked which digital he bought, but alas, I did not.

I know this has been discussed in detail several times on this forum. Some have moved to digital, some will be buried with their CRTs. My question is, should I stick with the CRT or spend my $1500 on a digital? I can't seem to make up my own mind on this topic.


You'll get more than 4500 hours out of a set of tubes if properly set up. The fact that the seller told you he couldn't see a difference between the d!gital the the 'PG should tell you just how bad his digital is. You forget there's bulb cost associated with owning a digital, including the gradual dimming as you use it. Where as a set of EM focused tubes will keep their focus for 10 000 hours or more, especially if you keep the contrast to a resonable level. Your ECP may have been soft because that's the nature of the ES focused tubes when they get older.

I say go front to back, top to bottom referb that projector, get the rebuilt tubes. DO the setup then re-do it 'till it's perfect and enjoy a great picture instead of putting up with rainbows, SDE, dimming bulbs and the whole other pandora's box of problems associated with d!gital projectors. I'd open Pandora's box myself but she'd have to be damned attractive and cheaper than $1500 Shocked LOL Laughing

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tri_joel



Joined: 03 Jul 2007
Posts: 646
Location: Northern Virginia

Posted: Mon Mar 17, 2008 1:07 am    Post subject:

Curt, Analog,

Do you two have shock colars that zap you when there's a new post? You are always the first two responses!

And good salesmen.

So you are both saying that the wear on my PG at 4500 hours is mostly due to bad set-up by previous owner?

Curt - will you move to the East Coast so it doesn't cost me next months pay to ship my PG to you for a refurb?

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Curt Palme
CRT Tech


Joined: 08 Mar 2006
Posts: 24396
Location: Langley, BC

TV/Projector: All of them!

Posted: Mon Mar 17, 2008 1:27 am    Post subject:

Trust me, I've thought many times of putting together a 1 ton truck and have 'CRTs R US' travel the continent. It would be a helluva way to meet all of you, but one slight problem, it's illegal for a Canuck to 'work' in the US..Sad

(insert your own slightly racist joke here about someone skipping through the border from the North taking away work from someone else who has skipped the border from the South..Wink)

No offense to my friends south of the south US border!
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Zebu Fellenz



Joined: 21 Dec 2006
Posts: 2567


Posted: Mon Mar 17, 2008 1:31 am    Post subject:

I would stay with CRT,

Get some better tubes for the PG and with proper setup they could last another 10k hours
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redcorvette_85



Joined: 09 Apr 2006
Posts: 145
Location: Bothell, Washington

Posted: Mon Mar 17, 2008 1:38 am    Post subject:

If it was me I wouldn't retube the 9pg+ or go digital, in my opinion you are really exceeding the value of that projector by doing that, I doubt you could get half of your money back out of it if you bought new tubes and then tried to resell it without using it at all. You dont seem to be in a huge hurry to replace what you have so I would keep a close eye on craigs list in your area for another machine of equal of better quality that already had pretty good tubes. I bet if you where patient you could find a pretty good upgrade to what you have now for 1500. Not sure exactly where you live but I did a quick cl search in your general vicinity and came up with g70 for 1300, you need to swap the green tube out, but it comes with another one and it has an hdfury, mount and screen. I bet you could offer 1000 and walk away with it and have a great image for another 5+ years. Either that or buy one of curts mid range machines that will come with a warranty and support for around the 1500 price range. I think it has now gotten to the point in price for used machines where its no longer worth it to retube anything thats not a 9inch lc machine.
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Joust



Joined: 05 May 2006
Posts: 2429
Location: Almonte, Ontario, Canada

TV/Projector: Marquee 8501LC

Posted: Mon Mar 17, 2008 3:04 am    Post subject:

Buy from Curt.
He backs his stuff like no other company will.
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AnalogRocks
Forum Moderator


Joined: 08 Mar 2006
Posts: 26706
Location: Toronto, Ontario, Canada

TV/Projector: Sony 1252Q, AMPRO 4000G

Posted: Mon Mar 17, 2008 6:21 am    Post subject:

Joust wrote:
Buy from Curt.
He backs his stuff like no other company will.


That I can attest to.

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remotebandit



Joined: 22 Jan 2008
Posts: 32
Location: Australia , Victoria

Posted: Mon Mar 17, 2008 9:16 am    Post subject:

crt definately for now but digital in the next couple of years for sure and we cant deny it .... sorry guys
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paw



Joined: 08 Mar 2006
Posts: 1176
Location: Arvada, CO

Posted: Mon Mar 17, 2008 5:11 pm    Post subject:

Curt Palme wrote:
Trust me, I've thought many times of putting together a 1 ton truck and have 'CRTs R US' travel the continent. It would be a helluva way to meet all of you, but one slight problem, it's illegal for a Canuck to 'work' in the US..Sad

(insert your own slightly racist joke here about someone skipping through the border from the North taking away work from someone else who has skipped the border from the South..Wink)

No offense to my friends south of the south US border!


Just make sure the truck has bald tires, a dented fender, a ladder on top and a shovel in the back. You should be fine. OH! Pretend you don't speak English either. "No habla ingles"

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Aubrey
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Person99



Joined: 09 Mar 2006
Posts: 4899
Location: Flower Mound, TX

Posted: Mon Mar 17, 2008 5:15 pm    Post subject:

redcorvette_85 wrote:
If it was me I wouldn't retube the 9pg+ or go digital, in my opinion you are really exceeding the value of that projector by doing that...I think it has now gotten to the point in price for used machines where its no longer worth it to retube anything thats not a 9inch lc machine.


I think you are pretty much dead on here. With tube and machine prices what they are, retubing kills the price/performance ratio.

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Dave

A train station is where the train stops. A bus station is where the bus stops. On my desk, I have a work station....
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Person99



Joined: 09 Mar 2006
Posts: 4899
Location: Flower Mound, TX

Posted: Mon Mar 17, 2008 5:32 pm    Post subject: Re: CRT vs. Digital - Again, sorry

tri_joel wrote:
I figure watching two movies on weekends will equal about 1000 hours per year


How did you do that math? Assume that the average movie is 2.15 hours (actually they average less than this), then 2.15 x 2 x 52 = 215.8! That is only 215.8 hours per year. A CRT with pristine tubes set up properly will generally have the tubes last 8000-12000 hours in a home theater environment. Based upon your projected usage, that is 37 years! Even if you do manage 1000 hours, the tubes will last 8 years.

tri_joel wrote:
I know this has been discussed in detail several times on this forum. Some have moved to digital, some will be buried with their CRTs. My question is, should I stick with the CRT or spend my $1500 on a digital? I can't seem to make up my own mind on this topic.


As has been suggested, buying a good used 8" LC machine is possible in your budget. Hell, you can get a great one for not much more.

For that kind of money, going digital would limit you pretty much to one of the following:
- Lower end 1080p LCD
- Good 720p DLP
- Decent 788p LCoS

Comparing to a good 8" LC machine, the LCoS machine will look as good as or better than the CRT on bright scenes. It will look washed out and crappy on dim scenes (due to horrid on/off CR). The LCDs will be sharper than the CRT, but pretty much worse in every other respect. The DLPs will have less resolution, on/off contrast (fade to black is fade to gray) and my have SDE from your viewing distance, or "rainbows", but will beat the CRT in intra-scene contrast, sharpness, picture uniformity, and (depending upon the model) shadow detail.

As a reference, I know 3 people that went from a PG series PJ, to a high end 720p DLP. All said they missed the fade to blacks occasionally and did see some artifacts. However, all were happy with the decision. Others find the artifacts of the digitals too distracting for their tastes.

You might post on AVS to see some digitals locally. However, even though we all have personal preferences in the CRT space, there are basically 5 brands and they are way more alike than different. In other words, a CRT is a CRT is a CRT. This is not true in the digital world--especially among 720p DLPs. Depending upon color wheel speed and segments, chip used, processing used, lenses used, etc, the image thrown by one 720p DLP varies greatly from one thrown by another model/brand.

Hope this helps.

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A train station is where the train stops. A bus station is where the bus stops. On my desk, I have a work station....
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tri_joel



Joined: 03 Jul 2007
Posts: 646
Location: Northern Virginia

Posted: Tue Mar 18, 2008 4:38 pm    Post subject:

Embarassed Oops, too many rum-punches. I'm on vacation this week. Math+rum punch+vacation=confusion.

I was looking at Curt's for sale items, and I think if I were to stick with the PG9+ level of projector it would make the most sense to just buy one from him and save the old one for back-up parts.

I'm more enthusiastic about CRT again now that the wise and experienced have corrected my misguided thoughts. (and math) Rolling Eyes
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