HP 900 model 300 monitor

js at cimmeri.com js at cimmeri.com
Sun Oct 1 11:18:48 CDT 2017

You need a 25khz monitor.   Here's a 
list I've compiled over the years.

25khz 640x400 SOG monitors

HP 98204A (used with 82913A 12" 640x240 
and 82912A 9" 640x240 monitors)
HP 98204B (used with 35721 14" 640x400 
and 35731 12" 640x400 monitors)
HP 98543A (used with 35741 12" 640x400 
RGB monitor)

- Hitachi CM1587
- Hitachi CM1711

- NEC LCD1510+ (not tested)

- NEC LCD1810 (LA-1831JMW-1)
   Mac + PC -- fair performance, poor 
   HP 300/98543 -- works, but banded 
background cannot be completely
      faded to black (I got rid of my 
1810's for this reason).

- Viewsonic Vp150
   HP300/98543 -- works well, great 
background, colors only fair.

- Viewsonic VP181
   HP 300/98543 -- not perfect but can 
be adjusted ok.
     banded background *can* be faded to 

- J.

On 10/1/2017 2:24 AM, devin davison via 
cctalk wrote:
> I found another HP machine at the scrapyard today. I have another
> similar model that boots up to HP basic. I do not see an exact model
> number anywhere on it, all i see is Hp 9000/300 on the front. It
> appears similar to the other machine i have, although this machine
> lacks the vga port and has what looks to be just a composite port
> marked Video. I have not managed to get it working with any of my
> monitors. All the nicer lcd monitors i have around here just say no
> signal. I tried a sony crt monitor, one that is usually my go to for
> when my lcd monitors do not work. When connected to a composite jack i
> definitely see something somewhat resembling a boot up screen with
> letters, but out of focus/sync and un readable.
> Does anyone out there know of what kind of video this thing puts out
> and what kind of monitor i would need?
> The model i have is as seen in the picture on this page at the Hp
> computer museum
> http://www.hpmuseum.net/exhibit.php?class=1&cat=40
> --Devin

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