HP Composite Video Interface Card

From: Wayne M. Smith <wmsmith_at_earthlink.net>
Date: Sat Nov 24 02:49:04 2001

> "Wayne M. Smith" <wmsmith_at_earthlink.net> wrote:
> > I am using an HP composite video card (98204A) in a
> > 9000/200 series and am getting a very small multiple
> > image on the screen. Is there something special about
> > HP composite video or is this just a bad card? I've
> > tried the card in both a 9000/200 and 9000/220 with the
> > same result. Any ideas?
> >
"Frank McConnell" <fmc_at_reanimators.org> wrote
> Just a wild guess, but if you have an HP 35731A monochrome monitor,
> try it with that. That wants composite video but with a horizontal
> frequency of 30KHz instead of the more usual 15KHz. HP used that on
> several different systems.

Frank, you were right! I recently picked up a 35731A with a batch of HP
stuff, plugged it into the 98204A, and the video's perfect. Now that I
can see the output, I was also able to confirm that, as expected, an HP
Integral keyboard works with the series 200 HIL card.

Now, if only I could find an OS. HPL or HP BASIC would be nice.

-W
Received on Sat Nov 24 2001 - 02:49:04 GMT

This archive was generated by hypermail 2.3.0 : Fri Oct 10 2014 - 23:34:12 BST