CurtPalme.com Home Theater Forum

[Nashou66]

[draganm]

[Nashou66]

[J Kildare]

I'm down for Three.
Good job Athanasios

Jim

[cmjohnson]

Yeah, well, remember, we've seen some G90 owners switch to flashlights, too.

So they got a brighter picture and they don't have to mess with convergence and geometry...so what? If the CRT PJ is
healthy you shouldn't have to do more than the occasional minor convergence tweak anyway.

And the CRT PJs they got rid of will still be going strong long after their flashlights have started to deteriorate in ways that
no CRT PJ ever does. Dichroics bleach and colors fade, cemented prism assemblies experience glue yellowing, drifting,
and fracture, the whole optical core slowly gets plated with hard-to-remove, baked-on dust, and let's not forget those
expensive lamps!

My 9500 is built on a chassis dating from 1996. (Overhauled and converted) I'd like to see a flashlight still be in good working shape when it's 12 years old! But I doubt I ever will.


CJ

[zGman]

Well CJ,

...that all may be true, and there's lots of good reasons why we are all still here...

but in general I think we have been trying to stay away from the digital debate,
so as to remain focused on the CRT issues, and not invite or initiate the long
and controversial threads that often distract from otherwise great CRT topics.

Such as this one - about a possibilty of having a new source for Marquee bellows,
the technical details that are involved, and how to pre-sell enough to make it possible....

Thanks,
G

[Nashou66]

Ok Dale found a good material for our application. i sent him a copy of what Galen said and what i also told him. here is his responce.

[Nashou66]

Galen, I was thinking about the porosity thing, do you think its a good idea to have no porosity at all? I think that it might be a good idea for the bellow to have some incase of pressure build up it has a place to escape and not crack the tube face, or am I just over thinking the whole thing? I could possibly have there designer add some accordion
ripples on the sides for possible expansion. maybe two or three? Not sure if it will then add to the cost of the mold or not, it might make it a better design.

One more thing I have to say now before i go any further. I am not a big corporate company with reserves of cash to cover any warranty, form a possible malfunction.
I will ask them how they test it for pressure bursting ratings, puncture ratings and any other possible mishap that could happen. I do however think this will be a non issue.
So I will not be finically responsible for any malfunction of the bellow, or any improper installation thereof and any damage to associated equipment. I am doing this for the guys here. I will be taking the same risk as everyone else as i am going to re-bellow my own PJ's.

Athanasios

[K-L-O]

Probably I'm not going to need them just @ the first run, but guys, if you need some more order to have the mold made count on me. I'll be happy to give a hand and take 3 of them.

Thanks

[Nashou66]

[AnalogRocks]

Yes! Yes We do!. Too bad these won't fit an Ampro, that or too bad I can't trip over a Marquee like I just did with another toy I needed.

[AnalogRocks]

Yes! Yes We do!. Too bad these won't fit an Ampro, that or too bad I can't trip over a Marquee like I just did with another toy I needed.

[1031]

I dont have need for bellows right now..( i have extra set bellows from 8"lc set) but hey, if that remanifacturing new bellows doesend happend and we dont have source for new ones , we can sing "leaky bellows" song (steamy windows by Tina Turner)

[DB Cooper]

I could use 3 too! I have a set already, but, need another for the 9500 at the girlfriends. It's getting a little sweaty! Haha!

[Nashou66]

[Nashou66]

Ok here is the list:

Nashou66: 6
Galen: 3 maybe more?
CRT_BEN: 6-3 ( I'll Add in 6 since they will be 50 each is this ok Ben?)
CMJhonson 3
Dragnm: 3 (since they will be lees than your 80 i threw you in for an extra one )
J Kildare: 3
K-L-O: 3 ( getting them just for the cause !! Awesome!!!)
DB Cooper: 3 ( For his Girl so he can get some lovin )

Total: 30


Now if we can get the big boys in here like Tim,Curt, and possibly Terry I could let then know this week with the go ahead!!



Athanasios

[CRT_Ben]

I'm willing to spend a few hundred - so if they are $50, I'm good for 6.

[Nashou66]

If we could by some miracle get to 100 it be 30 bucks a bellow give or take a few bucks.

Athanasios

[zGman]

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
""" I was thinking about the porosity thing, do you think its a good idea to have no porosity at all?
I think that it might be a good idea for the bellow to have some in case of pressure build up it has
a place to escape and not crack the tube face, or am I just over thinking the whole thing? I could
possibly have there designer add some accordion ripples on the sides for possible expansion. maybe
two or three? Not sure if it will then add to the cost of the mold or not, it might make it a better design. """
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

Sounds like things are coming together - great work!, and thanks!
here's a quick reply - got to get out the door.....

Porosity of any sort, or permeability to glycol/alcohol or water vapor = very bad!

Testing at lab = very good!

Accordian ripples = very good idea (!), and will help absorb stray light (!)

I am still willing to send the Barco housing so you can have them check out the material used
in the bellows - which just doesn't leak or swell or sweat - in my experience.

Personally I have not agreed with the scheme of using an air bubble in the LC housing, this just
adds 'active area' to the glycol which could increase water absorption. It also will cause a nasty
internal reflection which will light up your HT in a bad way. A better solution is to squeeze the
bellows (w/ assistant or wood blocks) during the fill, so that there will be some space to expand.
(Install fill and bleed screws before releasing "squeeze" on bellows)

G

[Nashou66]

Thanks Galen, I'll have them test the material they think is better and then if its not what they think would be best i'll have you send me a small sample of your material.
all thats needed is a sliver of it for them to test.

Athanasios

[Nashou66]

On a side note here, i mentioned earlier about another source or bare LUG's. The guy I go those Thomas Tubes from still would like to know how many are looking for new LUG's. They get them from a few places. VDC(entire assemblies), Thomas and Q4 services who i assume both have stock and/or make new LUG's. He said the thomas are every bit as good as the old stock new LUG's. i am waiting for a reply as to how many he would feel is enough to make it worth while, as they may be getting close to a new order so they can re tube the 9500LC simulators they service( they do a tube change every 8000 hours), also i hope to get a price for each,he originally said they would be in price range of the tubular outlet price, i asked if they can do it for 750-900 per tube, less than Tubular outlets. So if anyone also needs a new LUG this is a possibility.
Or you can deal with Thomas electronics and Q4 Services directly.

Back to the Bellow's i just got off the Phone with Dale and am meeting him tomorrow to give him the old Glycol, I also asked him about the accordion ridges on the bellow and he said that it might add more cost to the tooling but he has to run it by the tooling department. But we will discuss that as well, and i emphasized the importance of the concentric rings on the two bonding areas tot he housings, he said they will definitely be there as well

I really like these guys and they seam very enthused even for a very small project where they know they wont make much money, i guess this economic slow down
is working in out favor.

Athanasios