scott@max.u.washington.edu (10/31/90)
Hello, Does anyone know if there is a TV that can be hooked up to a VGA output? Or is there some type of converter-device that will convert a VGA signal so that one can use a regular TV as its output? What we are trying to achive is to display a VGA (or EGA) screen on a TV. I know that by doing this (if possible in the first place) one would loose some resolution, but that is not important since we are not trying to use it for wordprocessing. Instead we need to give a computer presentation to a room-size audience, and we would like to display the computer-generated outputs large enough so that everyone in the room can see it. A 14" VGA monitor is just too small. So we are trying to use a larger display-device in the range of 30", and the only thing that comes near that size is a TV screen (we were unsuccessful in finding a VGA monitor of that size). We already try to use those devices that one can put on top of a over-head-projector and display the computer output on a wall screen. But we find them to be too fuzzy and not sharp enough; the room had to be darken quite a bit before a good enough display could be achived. So at the moment we are stuck in doing it by slides and/or lengthy handouts. Or use a Commodore 64 (an 8-bit computer designed to be used with a TV); but we need a software that will allow us to draw graphs and charts and fancy text-scrolls, and present them in a slide-show manner. Is there such software for the C64? Any help will be appreciated. Sincerely, Scott K. Stephen
mark@intek01.uucp (Mark McWiggins) (11/01/90)
scott@max.u.washington.edu writes: >Hello, >Does anyone know if there is a TV that can be hooked up to a VGA output? >Or is there some type of converter-device that will convert a VGA signal >so that one can use a regular TV as its output? Yes. A company called Jovian Logic makes such a beast. Try Surplus Technology in San Jose; they carry it and gave good service. If you get a TV with Super VHS input you supposedly can get very good resolution; less good with regular composite input, as you suggested. I know about this because I bought one. I sent it back because this particular product is a hardware/software combo that runs only with DOS, and I'm running Unix. There are other such products around. US Video makes a VGA board with NTSC output, but it costs over $700. Good luck. I'm back with a 14" monitor myself. -- Mark McWiggins Integration Technologies, Inc. (Intek) +1 206 455 9935 DISCLAIMER: I could be wrong ... 1400 112th Ave SE #202 Bellevue WA 98004 mark@intek.com Ask me about C++!
treesh@vangogh.helios.nd.edu (11/01/90)
Here at the University we have a three gun projection system, that will put a VGA quality high res color image that can be shot onto a white wall. The unit is kinda large, extreemly expensive, and kinda hard to use in that you must 'tune' the convergance each time you move it. This can take up to an hour if you want shap clear pictures. ctfm
marshall@wind55.seri.gov (Marshall L. Buhl) (11/02/90)
mark@intek01.uucp (Mark McWiggins) writes: >scott@max.u.washington.edu writes: >>Hello, >>Does anyone know if there is a TV that can be hooked up to a VGA output? >>Or is there some type of converter-device that will convert a VGA signal >>so that one can use a regular TV as its output? >There are other such products around. US Video makes a VGA board with >NTSC output, but it costs over $700. Gee, I got it for $487 from Random Access. Haven't installed it yet though. -- Marshall L. Buhl, Jr. EMAIL: marshall@seri.gov Senior Computer Missionary VOICE: (303)231-1014 Wind Research Branch 1617 Cole Blvd., Golden, CO 80401-3393 Solar Energy Research Institute Solar - safe energy for a healthy future
MHS108@psuvm.psu.edu (Mark Solsman) (11/06/90)
I bought a VGA-NTSC card 6 months ago. I got it from a local computer store.
It works GREAT! I use it with Autodesk Animator and Autodesk AutoCad to create
presentations and to 'prototype' our projects in Engineering. Is is a SVGA
card w/ 512K 1024x768 resolution in VGA mode, standard NTSC. What I love about
this card is the fact that you can output VGA *AND* NTSC at the same time,
allowing you to see what you are doing when recording. The card also has
"GEMLOCK". This allows you to combine a NTSC input with your VGA and produce
NTSC output of the combination. (This is what your weather forcaster uses for
displaying maps on the nightly news)
The price of the card was somwehere around $800 or so, I will look up the
requisition anyone wishes.
The store was: Ruddy Computer Associates, (717) 586-3807
they are in Clarks Summit, Pennsylvania.
----
Mark Solsman
The Pennsylvania State University - Worthington Campus, Scranton, Pa.
Bitnet : MHS108 at PSUVM
Internet : MHS108 at PSUVM.PSU.EDUMHS108@psuvm.psu.edu (Mark Solsman) (11/06/90)
Oh, the manufacturer was Willow Technologies, Inc.
stanley@phoenix.com (John Stanley) (11/07/90)
MHS108@psuvm.psu.edu (Mark Solsman) writes: > allowing you to see what you are doing when recording. The card also has > "GEMLOCK". This allows you to combine a NTSC input with your VGA and produce ^^^^^^^ > NTSC output of the combination. (This is what your weather forcaster uses for > displaying maps on the nightly news) It is called genlock, and is shorthand for saying "sync GENerator phase LOCK". All this means is that the color sync generator on the card can be timed from an external source. I have not seen the card in question, but would bet that it does not perform the video mixing. You will still need a video mixer to combine the another NTSC signal with the NTSC graphics. All the genlock says is that both NTSC signals will be mixable. The same function as a genlock can be performed with a full frame time base corrector (TBC). The TBC reads the incoming signal into memory, and sends it out in phase with the master timing signals it receives from the master sync generator. The TBC has the advantage of being designed for TV work, and so produces good NTSC output. Many low cost NTSC graphics systems generate NTSC signals good enough to run a TV, but not to be used for broadcast use. (FYI: if you ever watch a baseball game, and hear the audio get staticy, and the picture freezes, that is a TBC at work. Somewhere in the chain the video signal got lost. A TBC detected loss of input and kept displaying the last good frame it got.) <> "Aneth! That's a charming place!" "You've been to Aneth?" <> "Yes, but not yet." -- The Doctor and Seth, "The Horns of Nimon". >< <> "Sanity check!" "Sorry, we can't accept it, it's from out of state." - me
yu-d@mummy.cis.ohio-state.edu (Moonrise Programmer) (11/08/90)
Darn, I seemed to have come into the middle or end of this thread. I have a
friend who wants to do some work with the Willow cards like maybe the
Publisher's Color or the TV VGA GEO card. Can somebody send me a summary of
the TV-VGA thread and/or the phone number to Willow Peripherals? Thanks.
David Yu
yu-d@cis.ohio-state.edu
Have you kissed a facehugger today?
--
David "as in" Yu -=- DrepuS -=- The One Who Programs by Moonlight!
The Ohio State University - Land of the Buckeyes!
If ya know what ya know then you know what you need. If you know what you
need then go get it. yu-d@cis.ohio-state.edu : Secretary of the OSU-ACM