Re: New Vector monitor project progress

James,

It might be very interesting to see what really does happen if a common rastor
monitor is modified to accept vector signals rather than composite or VGA-based
signals.

Food for thought: (cranking up the 'ole think tank)

If you were to take a easily obtainable (read: inexpensive) monitor, cut the
signal path at the point where the "rastor" signal is fed to the deflection
amps, and inserted a vector-based signal, would that work?

Potential problems:

1) Where does the HV section get the oscillating waveform? If it's from earlier
stages, then it should still run regardless of the signal fed to the deflection
amps.

2) Can the defection coils and transistors handle an aggressive vector signal
(Tempest).

My experience with television has been older sets and I cannot remember if the
"flyback" has a separate source for power or if it's obtained directly from the
horizontal amp on newer monitors. I'd really like some feedback as to what the
architecture of newer game monitors is like.

    - Matt

James Nelson wrote:

> Thanks for the info. Maybe I'll just neglect that effect and press on.
>

> >
> > > I'm a little concerned about the refresh rate:
> > > If I use a non-vector CRT, the phosphors may not glow long enough to
> make
> > > the picture tolerable to look at. Does anyone know the refresh rate of
> > > Tempest or Star Wars (and don't tell me there is no such thing because
> there
> > > is.) It may vary from screen to screen. If nobody knows, I'll break
> out
> > > the scope and find out myself.
> > >
> > > My guess is that it's somewhere around 30 - 60 Hz, but I need to know.
> > >
> > > -James
> > >
> > > ----- Original Message -----
> > > From: Zonn <zonn@zonn.com>
> > > To: <vectorlist@lists.cc.utexas.edu>
> > > Sent: Thursday, October 14, 1999 6:32 PM
> > > Subject: Re: New Vector monitor project progress
> > >
> > > > On Thu, 14 Oct 1999 18:16:13 -0400, you wrote:
> > > >
> > > > >It's looking like a good choice is a new 19" WG monitor K7000 series
> I
> > > think.
> > > > >The specs say standard horizontal resolution of 640 I think that's
> good
> > > enough.
> > > > >Do we need to mess with "medium resolution" monitors? I'm not
> familiar
> > > with them.
> > > >
> > > > Yes!! Medium resolution rules! And if you want the proper
> > > > replacement for your Star Wars, it'll have to be medium res.
> > > >
> > > > The only difference (as far as X/Y goes, since scan rate will be
> > > > meaningless at this point) is the pixel size of the CRT, whatever you
> > > > come up with for the low res, should work the same on med res.
> > > > monitors. You might want to start with low res for *experiments*
> > > > since I'm sure these are cheaper..
> > > >
> > > > -Zonn
> > > >
> > > >
> >
> > --
> > NOTICE:
> >
> > This program is sold by weight, not by volume.
> > Some settling of code may have occurred during shipment.
> > Always shake and recompile before using.
> > Refrigerate after use.
> > Expiration date and plant code are stamped in the registry.
> > If you are not satisfied, promptly return any unused portion for refund.
> >
> >

--
NOTICE:
This program is sold by weight, not by volume.
Some settling of code may have occurred during shipment.
Always shake and recompile before using.
Refrigerate after use.
Expiration date and plant code are stamped in the registry.
If you are not satisfied, promptly return any unused portion for refund.