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

Luis Antoniosi (CoCoDemus) retrocanada76 at gmail.com
Tue Sep 24 13:41:53 EDT 2013


Yes it can be replicated. I took screenshots from various angles and also
disto schematics could help.



On Tue, Sep 24, 2013 at 12:54 PM, tonym <tonym at compusource.net> wrote:

> Alibaba.com shows a few suppliers available...
>
> http://www.alibaba.com/showroom/crt9128-000p.html
>
> Rochester Electronics also:
>
>
> http://www.rocelec.com/search/finished/CRT9128-000P/0/1/contains/?utm_source=supplyFrame&utm_medium=buyNow
>
> Is this a board that can be easily replicated?
> Will your L1 driver work under L2?
>
> Tony
>
>
>
> ---- Original Message ----
> From: billg999 at cs.uofs.edu
> Sent: 9/24/2013 12:23:34 PM
> To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
> Subject: Re: [Coco] OS-9 80-column driver is ready
>
> > 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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