| Author |
Message |
Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
|
| Posted: Fri Dec 26, 2008 11:40 pm Post subject: Rebuilt Marquee tube Question. |
|
|
Ok I have been working on the Barkenstien Yokes between two test PJ, the one I have not set up and just have
a tube on top of the green to do the initial test of my Barco coils. Then I move them into the PJ I have in the theater
and do final on screen visual testing. On the first test PJ its an 8 inch green tube , about a 7 on the wear scale. I get a nice fine focus all around a little less on the edges, i am using a magnifying glass to check close up.
Now in the theater I always thought the tubes were mint, they had no wear, nice and white. Up until I had to remove the
stock Marquee coils I thought they were new tubes, well they are rebuilds(at least the green is ), the identifying factor being the brown neck.
When I put on the Barkenstiens, the frankenyokes, or the stock coils I find the edges do not focus as well as the center, and even that does not look as good as my older non rebuilt test tube. Is this the inherent characteristic of rebuilt tubes?
I can also see that the phosphor does not look as smooth as the new Thomas or LUG tubes I have or matter of fact the used 8 inch tubes also.
So is this why every one hates the re builds? they don't focus well?
Athanasios
_________________
Don't blame your underwear for your crooked ass~ unknown Greek philosopher
"Republicans believe every day is the Fourth of July, but the Democrats believe every day is April 15." --- President Reagan
One Smart Dog!!!
Marquee High Performance Bellows now shipping!!
Marquee Modifications and Performance Enhancement
Marquee C-element and Bellow removal
|
|
| Back to top |
|
 |
Elaine Benes
Joined: 25 Apr 2006
Posts: 1416
|
| Posted: Sat Dec 27, 2008 1:11 am Post subject: |
|
|
They focus TERRIBLY, and they wear, many times faster in many instances. I've seen a rebuilt tube with OBVIOUS wear in less than 200 hours of easy use. Rebuilds were ONLY a good choice when there was no OTHER choice, IMHO, they are TERRIBLE.
People that *sold* a lot of projectors always professed to liking them publicly...
|
|
| Back to top |
|
|
Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
|
| Posted: Sat Dec 27, 2008 1:26 am Post subject: |
|
|
| Elaine Benes wrote: | They focus TERRIBLY, and they wear, many times faster in many instances. I've seen a rebuilt tube with OBVIOUS wear in less than 200 hours of easy use. Rebuilds were ONLY a good choice when there was no OTHER choice, IMHO, they are TERRIBLE.
People that *sold* a lot of projectors always professed to liking them publicly... |
This is the PJ I think I got really duped on, it was supposedly a Reference 8, the only thing that
was from the reference 8 was the VNB's and the chassis all other boards were from a 8000. I should have known the tubes were swapped out as well since this had focus coils with no astig windings. Now I find out the tubes are rebuilds!!! 
I guess I will swap this out to the 9 inch tubes now instead of later, my plan was to use a 8 inch blend for a while then wait for a set of crapy 9 inch tubes for the housings and bellows and then do a two PJ swap.
Thanks for the info it was member 316 on AVS who sold it to me a few years ago. thats Right !! I am ratting him out!!
I guess i will move the 9500LC to the floor position for testing the Barkenstien/Frankenyoke rewind projects.
I was beginning to think all those Frankenyoke owners were having self fulfilling prophecy syndrome about frankenyokes!!
I'm Sorta Glad its just the tubes, i got lots of 9 inch ones now. Any one want some 8 inch AC tubes cheap? 
Athanasios
_________________
Don't blame your underwear for your crooked ass~ unknown Greek philosopher
"Republicans believe every day is the Fourth of July, but the Democrats believe every day is April 15." --- President Reagan
One Smart Dog!!!
Marquee High Performance Bellows now shipping!!
Marquee Modifications and Performance Enhancement
Marquee C-element and Bellow removal
|
|
| Back to top |
|
|
draganm
Joined: 08 Mar 2006
Posts: 8990
Location: Colorado
|
| Posted: Sat Dec 27, 2008 1:57 am Post subject: |
|
|
| Nashou66 wrote: | Thanks for the info it was member 316 on AVS who sold it to me a few years ago. thats Right !! I am ratting him out!!
Athanasios |
As well you should. There is a chance that he bought it as a so-called reference 8 and didn't know better but who really knows. A lot of people decide to switch to digital and know that their reputation here won't matter after they start burning bulbs So they dump their stuff an anway possible. I remeber seeing this "thing" on AVS classifieds and warning people about it.
I think the term "reference 8" was something cooked up by PSI Wisconsin, and you can read all the horror stories about them in the AVS archives. the fact that this is just a Kluged over 8000 with the old rebuilt tubes is pathetic. 
|
|
| Back to top |
|
|
Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
|
| Posted: Sat Dec 27, 2008 2:06 am Post subject: |
|
|
| draganm wrote: | | Nashou66 wrote: | Thanks for the info it was member 316 on AVS who sold it to me a few years ago. thats Right !! I am ratting him out!!
Athanasios |
As well you should. There is a chance that he bought it as a so-called reference 8 and didn't know better but who really knows. A lot of people decide to switch to digital and know that their reputation here won't matter after they start burning bulbs So they dump their stuff an anway possible. I remeber seeing this "thing" on AVS classifieds and warning people about it.
I think the term "reference 8" was something cooked up by PSI Wisconsin, and you can read all the horror stories about them in the AVS archives. the fact that this is just a Kluged over 8000 with the old rebuilt tubes is pathetic. |
Yeah this was when i was new to the scene and did not know better. I got an 8000 also around the same time and put that one in my theater as the ref 8 had a skewed deflection coil, and I wondered why the stock 8000 looked sharper than the supposed 8500. Now I know it was the rebuilt tubes. I wish i read the posts about it from you. Well i learned a lot from these PJ's so I guess it wasn't a total loss, education can be priceless
Athanasios
_________________
Don't blame your underwear for your crooked ass~ unknown Greek philosopher
"Republicans believe every day is the Fourth of July, but the Democrats believe every day is April 15." --- President Reagan
One Smart Dog!!!
Marquee High Performance Bellows now shipping!!
Marquee Modifications and Performance Enhancement
Marquee C-element and Bellow removal
|
|
| Back to top |
|
|
draganm
Joined: 08 Mar 2006
Posts: 8990
Location: Colorado
|
| Posted: Sat Dec 27, 2008 2:21 am Post subject: |
|
|
| Nashou66 wrote: | Well i learned a lot from these PJ's so I guess it wasn't a total loss, education can be priceless
Athanasios |
yup, that's what it's really about. I was cleaning some sutff out today and ran across paperwork from 5 years. Stuff I had printed off about yoke alignment, anamoprhic squeeze mod, etc. It's stuff I can do today blind-folded. So it's good to keep learning, save the old brain from atrophy. 
|
|
| Back to top |
|
|
Chuchuf
Joined: 11 Mar 2006
Posts: 548
|
| Posted: Sat Dec 27, 2008 11:12 pm Post subject: |
|
|
| Elaine Benes wrote: | They focus TERRIBLY, and they wear, many times faster in many instances. I've seen a rebuilt tube with OBVIOUS wear in less than 200 hours of easy use. Rebuilds were ONLY a good choice when there was no OTHER choice, IMHO, they are TERRIBLE.
People that *sold* a lot of projectors always professed to liking them publicly... |
There were some good rebuilds an there were some bad ones. The good ones were the last 9" batches that were built with new glass. In fact some of them focused incredible.
The early ones that were rebuilds were pretty bad.
Terry
|
|
| Back to top |
|
|
Tim in Phoenix
Joined: 21 Oct 2006
Posts: 4409
Location: Phoenix
|
| Posted: Sun Dec 28, 2008 1:53 am Post subject: |
|
|
Guys!
I presume the topic is VDC rebuilds. The earlier samples did not feature Matsushita electron guns, they had guns from another supplier that did not match up to Marquee magnetics, so your flare dot was the size of a tennis ball at the screen. They later were sourcing OEM guns, but chewed glass remained a problem. I am told that P19s are now made in Illinois by Clinton, a VDC subsidiary.
.
|
|
| Back to top |
|
|
Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
|
| Posted: Sun Dec 28, 2008 3:22 am Post subject: |
|
|
| Tim in Phoenix wrote: | Guys!
I presume the topic is VDC rebuilds. The earlier samples did not feature Matsushita electron guns, they had guns from another supplier that did not match up to Marquee magnetics, so your flare dot was the size of a tennis ball at the screen. They later were sourcing OEM guns, but chewed glass remained a problem. I am told that P19s are now made in Illinois by Clinton, a VDC subsidiary.
. |
i guess i have the "chewed" glass ones. the face is not smooth like some of the original tubes i have or the New super smooth Thomas Tubes. These rebuilds are bumpy and also one side on my green can focus better than the other, almost like the phosphor on one side is thicker so its not focusing in the right plane. Althought the better focusing side doesnt do much better.
Athanasios
_________________
Don't blame your underwear for your crooked ass~ unknown Greek philosopher
"Republicans believe every day is the Fourth of July, but the Democrats believe every day is April 15." --- President Reagan
One Smart Dog!!!
Marquee High Performance Bellows now shipping!!
Marquee Modifications and Performance Enhancement
Marquee C-element and Bellow removal
|
|
| Back to top |
|
|
MikeEby
Joined: 24 Jun 2007
Posts: 5237
Location: Osceola, Indiana
|
| Posted: Sun Dec 28, 2008 3:33 am Post subject: |
|
|
I'm playing attention to this thread...I'm glad it came up. My XG is going to need at least a new green tube soon. Since new are very hard if not imposable to find, I'm not sure where to go.
I shudder at the thought of “D-word” but these facts could kill many of good 8" projectors out there. I know that Elaine’s dislike for rebuild but if what he says is true tight focus is must then all bets are off and I don’t see any other options.
Mike
_________________
Doing HD since the last century!
|
|
| Back to top |
|
|
Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
|
| Posted: Sun Dec 28, 2008 3:48 am Post subject: |
|
|
Mike I understand your plight, This is why I got all those tubes for cheap. Before i realized my tubes in my 8500 were rebuilds i thought my softness was my set up, but i turned on my 8000 the other day to watch since i had the focus coils all out of the 8500's green for testing my barkenstien coils and I realized it looked sharper than my 8500 with all the better boards and so on. I got up on a stool and looked at the tube face and saw that those tubes had a smoother phosphor, then I remembered that some said you can tell a rebuild by the Neck color and thats when i had the AHA!! moment as to why it wasn't as sharp. The LUG and these new Thomas tubes are the smoothest surface of all the tubes I have here, the 180's, P18's, LCP's and the Rebuilds...they are horrible surface wise!!! I wish I should try to capture them in a pic, have to remove the lens.
Thomas Electronics of New York does rebuilds and phosphor coating's to your specs, and if they can do it as well as the Hybrids I have then i think it be a Very good tube, i just have no Idea of what they charge compared to VDC/Clinton. The tubes I have were $1100 new according to the owner who sold them to me, so it be less than that I'd assume.
Athanasios
_________________
Don't blame your underwear for your crooked ass~ unknown Greek philosopher
"Republicans believe every day is the Fourth of July, but the Democrats believe every day is April 15." --- President Reagan
One Smart Dog!!!
Marquee High Performance Bellows now shipping!!
Marquee Modifications and Performance Enhancement
Marquee C-element and Bellow removal
|
|
| Back to top |
|
|
Spanky Ham
Joined: 22 Mar 2006
Posts: 5643
Location: Comedy Central
|
| Posted: Mon Dec 29, 2008 11:42 pm Post subject: |
|
|
| Nashou66 wrote: |
Thomas Electronics of New York does rebuilds and phosphor coating's to your specs, and if they can do it as well as the Hybrids I have then i think it be a Very good tube, i just have no Idea of what they charge compared to VDC/Clinton. The tubes I have were $1100 new according to the owner who sold them to me, so it be less than that I'd assume.
Athanasios |
I think VDC was around 75% of new for rebuilds. If they could do Panasonic rebuilds for $800, then I think there might be interest. I think new 8" tubes from VDC are around $800, but I think most would spend an extra couple hundred dollars per set for piece of mind.
Nash,
I don't know how far you are from these guys, but maybe you could drop by and check them out. Their website looks interesting.
|
|
| Back to top |
|
|
draganm
Joined: 08 Mar 2006
Posts: 8990
Location: Colorado
|
| Posted: Tue Dec 30, 2008 1:37 am Post subject: |
|
|
| MikeEby wrote: | I'm playing attention to this thread...I'm glad it came up. My XG is going to need at least a new green tube soon. Since new are very hard if not imposable to find, I'm not sure where to go.
I shudder at the thought of “D-word” but these facts could kill many of good 8" projectors out there. I know that Elaine’s dislike for rebuild but if what he says is true tight focus is must then all bets are off and I don’t see any other options.
Mike |
I don't recall VDC EVER offering re-built P16's for the G70 and NEC's. The tubes Nashou has are some very rebuild 108DMB22 from 5 years ago, with the Red Dag in the bell/neck. The last half dozen 180DMB's I bought from VDC were all new and performed very well, both focus and Phosphor. They were $600. each
|
|
| Back to top |
|
|
Angus_rg
Joined: 16 Dec 2007
Posts: 339
Location: A planet far, far away..... Baltimore, MD
|
| Posted: Thu Jan 08, 2009 7:28 pm Post subject: |
|
|
| Nashou66 wrote: | | I remembered that some said you can tell a rebuild by the Neck color and thats when i had the AHA!! moment as to why it wasn't as sharp. |
What do you mean by color/how do you tell? I'm curious about the thread I had a while back with not getting the tubes very sharp on my 8500AC. Might have been the tubes. I just put some GT17s on my 8500LC which focused significantly sharper than the AC using HD10s. The red and blue got sharper, the green got worse with the GT17s. Sounds like it could be similar. Of course, I still don't trust my setup skills. 
_________________
It's good to be the king.
|
|
| Back to top |
|
|
Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
|
| Posted: Thu Jan 08, 2009 7:56 pm Post subject: |
|
|
The neck of a non rebuild is black usually, you have to go to under the focus coils to see it, its its brown swirly paint most likely its a rebuild.
How ever some new tubes, like the 9 inch Thomas Tubes i have, are also brown. But if its a standard tube type and not a custom tube like I have and its Brown then its a rebuild.
Athanasios
_________________
Don't blame your underwear for your crooked ass~ unknown Greek philosopher
"Republicans believe every day is the Fourth of July, but the Democrats believe every day is April 15." --- President Reagan
One Smart Dog!!!
Marquee High Performance Bellows now shipping!!
Marquee Modifications and Performance Enhancement
Marquee C-element and Bellow removal
|
|
| Back to top |
|
|
Chuchuf
Joined: 11 Mar 2006
Posts: 548
|
| Posted: Thu Jan 08, 2009 7:56 pm Post subject: |
|
|
I don't recall VDC EVER offering re-built P16's for the G70 and NEC's. [/quote]
They did
Terry
|
|
| Back to top |
|
|
Angus_rg
Joined: 16 Dec 2007
Posts: 339
Location: A planet far, far away..... Baltimore, MD
|
| Posted: Thu Jan 08, 2009 8:30 pm Post subject: |
|
|
| Nashou66 wrote: | The neck of a non rebuild is black usually, you have to go to under the focus coils to see it, its its brown swirly paint most likely its a rebuild.
How ever some new tubes, like the 9 inch Thomas Tubes i have, are also brown. But if its a standard tube type and not a custom tube like I have and its Brown then its a rebuild.
Athanasios |
Good to know. I've been trolling around here for a year and didn't realize there was much difference. I figured new is probably and more reliable and a bit better, but not enough to care for most standards. I know what I'll be doing tonight. 
_________________
It's good to be the king.
|
|
| Back to top |
|
|
|
|
