| Author |
Message |
perisoft
Joined: 29 Aug 2007
Posts: 2920
Location: Ithaca, NY
|
| Posted: Sun May 11, 2008 6:42 pm Post subject: *cries* effects of too small of a raster on a tube |
|
|
Alas, the 9PG owner selling these tubes was abusive to his poor projector. If only there was an ASPCCRTs....
| Description: |
|
| Filesize: |
178.11 KB |
| Viewed: |
3458 Time(s) |
|
_________________
|
|
| Back to top |
|
 |
Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
|
|
| Back to top |
|
|
PeeGee9er
Joined: 20 Mar 2006
Posts: 41
|
| Posted: Sun May 11, 2008 8:52 pm Post subject: |
|
|
Definately a waste 
| Description: |
|
| Filesize: |
36.71 KB |
| Viewed: |
3398 Time(s) |
|
|
|
| Back to top |
|
|
Fujifrontier
Joined: 20 Oct 2007
Posts: 354
Location: San Antonio, Texas
|
| Posted: Sun May 11, 2008 9:47 pm Post subject: |
|
|
|
what an asshat
|
|
| Back to top |
|
|
Curt Palme
CRT Tech
Joined: 08 Mar 2006
Posts: 24396
Location: Langley, BC
TV/Projector: All of them!
|
| Posted: Mon May 12, 2008 1:11 am Post subject: |
|
|
No, that's really not too far off of the original specs. We just be smrter than the NEC engineers. Doug will disgree though..
|
|
| Back to top |
|
|
Elaine Benes
Joined: 25 Apr 2006
Posts: 1416
|
| Posted: Mon May 12, 2008 1:20 am Post subject: |
|
|
With NEC's, it depends if you want rock solid, total focus and convergence or if you want a "full" raster.
Using NEC's spec'd throw distances result in a lesser amount of tube used than may be typical of most front projectors, but the trade off is that convergence and focus is perfect across the entire image. Focus and convergence become harder to maintain the farther from the center of the tubeface you get.
It is a preference, and like virtually all other aspects of crt projector setup, a compromise.
Personally, I prefer the slightly smaller raster in order to achieve perfectly uniform focus and convergence. *If* it was possible to get both, I'd choose that, obviously, but with NEC's, *typically* its not possible to get both.
|
|
| Back to top |
|
|
|
|
