vt278

[Carlos E. Murillo-Sanchez]

On Fri, 18 Mar 2005, vrs wrote:
> > by Harris; this is when looking at the component side with
> > the slot tabs pointing downwards)
>
> Mine has an empty socket there.  Looks from how it is wired that it is meant
> to take another m1-6322-9, like the three above it.  (Perhaps an option
> ROM?)

Good, then I was probably looking for a chip that was never there.

> > 2) Can one use this board to run older pdp8 software?
>
> Yes (some).

great, I will probably ask for more clarification on this later on..
>
> > Can one connect a terminal to the printer port with
>
> I don't think it wants to talk there (without extensive firmware work).  It
> wants to plug into the terminal backplane (which I am sure is *not* qbus),
> with a keyboard plugged into it.

Ok.  It's been a while since I've had a Qbus card in
my hands and this card really looked like one. Too bad that
it won't accept a diagnostics terminal like the microvaxen.

Unfortunately I did not find the rest of the terminal.

> >From what I have read, that could be a challenge.  It would probably be
> easier to build a compatible video adapter and keyboard stuff for it.  The
> floppy is an RX01 with a special cable, IIRC.

There's a socket for a 5037 video crt controller in the card  (which is
also missing).  What is the 1/4" plug connector for?

Carlos.