18 Mar
1999
18 Mar
'99
11:05 a.m.
If you're thinking about the monitor as being useable with a PC, it depends
on which type it is. The lower-resolution type (I once had one) will work
at 1024x768 if you connect a resistor of about 500 ohms between the
composite blanking signal on the "application connector" to the GREEN output
M. K. Peirce
Rhode Island Computer Museum, Inc.
215 Shady Lea Road,
North Kingstown, RI 02852
"Casta est qui nemo rogavit."
- Ovid
from the card. This will impose the composite blanking
beneath the GREEN
video, and bias the GREEN up by about enough to make the composite
blanking
look like a composite sync, since it's of the right frequency. The GREEN
input is usually AC coupled at the monitor, and terminated to ground through
75 ohms. This is worth a try, but may not work on all card-monitor
combinations.
It will of course not work at all until you load the 1kx768 driver, which
will only happen when the hi-res GUI is loaded.
Dick
-----Original Message-----
From: Merle K. Peirce <at258(a)osfn.org>
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Date: Thursday, March 18, 1999 5:27 PM
Subject: Re: Apollo 400
Ours stands about waist high and has to weigh over 100#. since it has
wheels, it is, of course, portabel...;) The monitor on ours appears to
be secured to the top. Ours was the main server on a token ring.
On Thu, 18 Mar 1999, John Amirault wrote:
> Merle,
> I would not call my HP Apollo 400 a portable by any means. It stands
> about 2' tall and weighs in @ about 70 pounds, which is the top end of
> what my doctors say I can lift and I find that trying to do this is very
> pain full, thank goodness for friends and hand trucks. Mine has no
> wheels. Mine also has a cable with three BNC connectors on each end to
> hook up the monitor. I have been told of a possible source for a monitor
> and I say thanks Sellam and I will check into it.
>
> JOhn Amirault
>
> "Merle K. Peirce" wrote:
> >
> > Perhaps I'm thinking of the 300 series? Is the 400 the very large
> > portable with its own wheels?
> >
> > On Wed, 17 Mar 1999, Merle K. Peirce wrote:
> >
> > > I think the 400 series have integral monitors, John.
> > >
> > >
> > > On Wed, 17 Mar 1999, John Amirault wrote:
> > >
> > > > Mike,
> > > > Is this the HP Apollo 400? If yes,are there any monitors?
> > > > JOhn Amirault
> > > >
> > > > Mike Ford wrote:
> > > > >
> > > > > I had a pleasant afternoon poking around one of my favorite
scrappers, and
> > > > > noticed on an incoming cart
about two dozen Apollo 400 computers
(says
> > > > > model 425 on the back). Hard
drives are pulled, but otherwise
they are
> >
supposed to be complete. Any interest? (he is in Santa Ana CA)
>
M. K. Peirce
Rhode Island Computer Museum, Inc.
215 Shady Lea Road,
North Kingstown, RI 02852
"Casta est qui nemo rogavit."
- Ovid
M. K. Peirce
Rhode Island Computer Museum, Inc.
215 Shady Lea Road,
North Kingstown, RI 02852
"Casta est qui nemo rogavit."
- Ovid