CurtPalme.com Home Theater Forum

[the big E]

Anybody got any for a elctrohome Ecp I want a minty set(if posible)as my set has a mix and match of 07ms and sd187 and I want to get a spare set(curt don't have none as I know of)

[mc86]

Big E -

There are very little 7" tubes...and fortunately almost ZERO demand! That said, I think I may have you scooped on this front -- I've been trying to buy tubes for mine over last year and half. At this point, you'd be better off buying the remaining 9" tubes that are available and waiting another year for a nearly-free 9" chassis to fall in your lap that only needs new tubes.

In particular, I got a set of mint 07MS tubes from Dragan and a very, very good 4:3 wear-in set from CJ. LOTREE has a 4500 sitting in a closet in newfoundland with what I think should be very good tubes, but last I asked he couldn't be bothered to pull the tubes for the cost of shipping and a case of beer.

Next week I'm going to see Mr. Blonde (on here occasionally/rarely nowadays) to remove a set of tubes from an old/extra ECP he has. If those tubes are good, I would let go a set minty-looking set of the SD187s. They might have fungus and sat under my carport for the last year, tho'.

Note that the 07MS tubes from a Sony D50 are the same, but won't fit in your ECP. I'm hoping curt will give me a bad D50 tube with some stuff I'm ordering. I think I have found a chemical that will de-bond the metal-to-glass bondment...this might free up a few tubes, not sure.

cheers,
Matt

[mc86]

Just after I sent this, I say I had an email alert for this auction of a new Red 07MS. $50 is more than I'd spend for one tube at this point, maybe for a set...

http://www.ebay.com/itm/Sony-07MS-R-Red-7-Inch-CRT-Projection-Tube-/130923854206?pt=US_Rear_Projection_TV_Lamps&hash=item1e7bab797e

Matt

[Curt Palme]

FYI, looking at that red tube in the link above, it has high hours on it. How do I know? The level of the glycol. Those tubes don't have glycol evaporation issues (not that it can evaporate), but EVERY, and I mean EVERY tube that has a low glycol level had high hours on it, and the focus was compromised.

[Curt Palme]

FYI, looking at that red tube in the link above, it has high hours on it. How do I know? The level of the glycol. Those tubes don't have glycol evaporation issues (not that it can evaporate), but EVERY, and I mean EVERY tube that has a low glycol level had high hours on it, and the focus was compromised.

[the big E]

[RaWsHaRk]

I dont think you have to worry about tubes, worry more about infamous sure-to-break parts of ecp like the power unit, finding those will be harder than finding new good tubes. I could probably pick a bunch of minty 07ms tubes here in europe from the crt´s that arent worth anything anymore but sending some over there would be ridiculous..

I have 4 sets of clean tubes for my 801s but I dont think I will get to install even the 1st spare one, other parts will fail much sooner or I will just pick a higher end projector for peanuts..

[the big E]

[mc86]

Tell you what:

If I don't end-up doing the blend (this year), I'll give the SD187 blue to you for free since that backup wouldn't be needed. I only run the machine 500 hrs/year, so it will be 5 years before I even crack 3000hrs. Around then:

1) Other things *will* have failed as Rawshark says OR
2) Crabb/Kal will be upgrading to 4K and I'll buy one of their current machines!!!

Actually, you know what...IF I am able to get this other machine next week AND it has good tubes, you can have the blue SD187 right away! I need to pay-forward the kindness others on here have shown me, right?

Cheers,
Matt

[the big E]

[CasetheCorvetteman]

Since when did a D50 have 07MS tubes??


Last i heard they are P14!!

[the big E]

[CasetheCorvetteman]

Yeah mate, the VPH 20H i think it was called was the last Sony to use those, and was essentially the same as a 1044 with component video and the remote receiver built into the unit instead of plugging in like it does on the 1044 and 1001 ( which are the same apart from the 1001 not having the RGB input, all the boards are the same, the 1001 has not got the components installed for the RGB input and the chip has it removed from the menus ) it still had the same analog master convergence with digital single point user convergence like the 1044 and 1001.

[mc86]

The 07MTS came right after the 07MS (I think) and were used in the late model ECP4500s. Here is a link to a thread where Curt discussed this all a little (as well as softness issues). I actually bought the machine mentioned in that thread. Anyway, below is a picture of the tube in question and it shows that the 07MTS (late 07MS) tubes ARE P14 tubes.

Curt points out that getting the D50 tubes into a ECP can't be done b/c the metal housing bonded to the tube faces are different. Removing the metal rings are what I want to try to do chemically. Curt tried mechanically and came to the conclusion it was a futile effort.

cheers,
Matt

[the big E]

[CasetheCorvetteman]

The last of the little 15.7kHz Sony sets was 1998 and still have 07MS tubes though, so i wonder just how compatible they are.

[the big E]

[CasetheCorvetteman]

Scan rate got nothing much to do with it

[the big E]

[CasetheCorvetteman]

Yep, its all in the hardware.

I wouldn't worry too much about wearing 07MS tubes, in my experience they seem to last a very long time. Although my experience is with the two Sony 1001QMs I have here, I got some almost new zero wear tubes from Curt about 4 years ago and those are still showing no visible wear, probably put about 1000 hours on them, but in this case the rasters were almost filling the whole tube face with about 2 or 3mm at the closest point, which on the 1001 seemed to cause no issues at all. I also had the tubes almost perpendicular to the screen, so the rasters were all very close to zero keystone.

The original 07MS tubes in the first 1001QM I have here have done a hell of a lot of hours, although they are badly worn and VERY soft, then ran an average of 16 hrs a day, 7 days a week from 1996 til 2005 when the convergence board in the set failed and it was removed from service. ( replaced with a digital that lasted a whole 2,000 hrs )

Ill post a pic of them after their 9 years of dedicated service...

[CasetheCorvetteman]

Here they are. The wear doesn't show in these pics near as bad as it really was.

Blue and green:


Blue:


Red:


Green:


P.S. Ive still got them somewhere, and they have never had a fungus problem either