[Coco] OS-9 80-column driver is ready

Tue Sep 24 12:25:14 EDT 2013

I found in china. Old new stock and already ordered two of them for 5.6 + 5
dollar shipping. In one month it arrives. Let's see.

On Tue, Sep 24, 2013 at 12:23 PM, <billg999 at cs.uofs.edu> wrote:

> > Well I call it protype because in fact it was a prototype made in 1985 by
> > some company called PHB in Texas. Is what is written in the label :P
> >
> > I'm doing the schematics and I will try to make it in protoboard, but it
> > will take a while since I'm a software guy not a hardware.
> >
> > But yes the circuit is so simple that it can be easily copied. I think
> the
> > most difficult part is to find the CRT9128.
> >
> > I found in china the CRT9128-000P.  I hope is the same ? If the
> protoboard
> > works I can see the possibility to make a batch of it.
> >
>
> I did some quick research and it appears the "000P" is the same device
> probably refers to plastic as opposed to ceramic packaging.  The bad
> news is that they do not appear to be manufactured by anyone any more.
>
> I wonder if there is some other similar but newer chip that could be
> designed into the circuit?
>
> bill
>
>
>
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