CurtPalme.com Home Theater Forum

[harry27]

Anyone ever hear of these? EMC Design CRT Projector Tubes. I know EMC Design isn't mentioned on these forums, but maybe someone knows something.

Introduced September 2011 http://blog.emc-design.jp/2011/09/crt.html
This is what the page says translated:
"These are images of the ultra-high resolution CRTs that are set up to be installed in the VPH-G90!
Of course, they are all brand new, brand new CRTs!
"There are no new CRTs left" - General shops and various manufacturers
no way!!!

With EMC Design, you can enjoy your brand new, ultra-high resolution CRT now and for many years to come!
This high-resolution CRT delivers quality on a completely different level from the standard VPH-G90 CRT. It's superb in every aspect, including
speed, resolution, and focus .
Even if we compare only the resolution,
VPH-G90 Normal CRT 2500×2000
EMC HiResolution CRT 3200×2560
It's so different!"

Another blog of theirs states
"High-resolution tubes have an extremely fast response time , so they can follow fast-moving video beautifully while maintaining resolution."
and
"What's particularly noteworthy is the speed. It draws scan lines at a speed that's far beyond normal, so I'm really looking forward to testing the 72Hz refresh rate."

Could there be any relation to Greg Eisemann tubes or something else? I don't know who else makes CRT tubes, and the faster response makes me think it is a P43 phosphor tube but that seems like a very odd choice for a home theater company.

https://emc-design.jp/home-theater
This is their website. They make is very clear that they still work on the "installation and adjustment of three-tube projectors." (google translate)

[kal]

EMC (and Greg E) may have both done modifications to electrical components that were used with the tubes, but did they did not make tubes. You're looking at millions of dollars in setup cost, never mind the research that goes into it.

There were only a few companies that made the actual phosphor coated bare tubes as it's very complex/expensive work. Mostly Sony, NEC, MEC (Panasonic), and Zenith.

Kal

[kal]

EMC (and Greg E) may have both done modifications to electrical components that were used with the tubes, but did they did not make tubes. You're looking at millions of dollars in setup cost, never mind the research that goes into it.

There were only a few companies that made the actual phosphor coated bare tubes as it's very complex/expensive work. Mostly Sony, NEC, MEC (Panasonic), and Zenith.

Kal

[virusc]

I know what is going on here I think. This is a translation error and some technical misunderstanding. The base chassis they got some information from must be a Barco 909+ as only that projector has a max pixel clock of 3200x2560. All the other 9" chassis in general have a pixel clock around 2500x2000. No 9" CRT exists that can resolve 3200 or scan that high really anyway. Even if it did it would be dim and the tube burn quickly with any retention. The grain structure of the LUG's phosphor itself would not resolve anywhere near that resolution. They must of taken info of the pixel clock and thought it would translate with the G90 if they moved the same tubes over.