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Article #530

Re: Composite output via PC

#530
From: Brett Baumberger
Date: Thu, 03 Sep 1992 12:43
26 lines
1599 bytes
Hi Marc,

I have a Ventek VGA card on my PC.  It has a VGA output and a composite
video output.  It is based on the Tseng T4000. It can display up to
32K colors (15 bit) in 640X480 mode, and has resolutions up to 1024x768.
I have found the 640x480 resolution to be the best for video of the 
resolutions it can handle.  The composite video output is based on the
Motorola 1377, which was widely used in Amiga 1000's.  The video card
does have a Windows driver.

It doesn't do composite video out unless you have a tsr running to enable
the composite portion of the board.  When you enable the composite part
of the board, sync frquency is reduced to 15.75KHz (good for composite).
The down side of this is: if your monitor cannot sync at 15.75KHz, you
have to make a choice whether you want to watch the VGA or the composite.
BUT if you have a monitor that can sync at 15.75KHz (some NEC's can),
then you can see both clearly.

The board is called the Chroma VGA adapter, and sells for about $350.

This is not an advertisement.  Video is one of my hobbies.

Brett Baumberger
bsb@hpuerca.atl.hp.com

*** my opinions only; official HP spokesman NOT ***
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Message-ID: <143430002@hpuerca.atl.hp.com>
Path: arc1-ca.pugleaf.net!sparky!uunet!gatech!darwin.sura.net!wupost!sdd.hp.com!scd.hp.com!hplextra!hpcc05!hpuerca!bsb
References: <1992Sep2.202748.23967@Rapnet.Sanders.Lockheed.Com>

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From: bsb@hpuerca.atl.hp.com (Brett Baumberger)
Date: Thu, 3 Sep 1992 12:43:49 GMT
Subject: Re: Composite output via PC
Message-ID: <143430002@hpuerca.atl.hp.com>
Organization: the HP Response Center, Atlanta
Path: arc1-ca.pugleaf.net!sparky!uunet!gatech!darwin.sura.net!wupost!sdd.hp.com!scd.hp.com!hplextra!hpcc05!hpuerca!bsb
Newsgroups: comp.multimedia
References: <1992Sep2.202748.23967@Rapnet.Sanders.Lockheed.Com>
Lines: 27