[Coco] 68764/68766 EPROMs

Richard E. Crislip rcrislip at neo.rr.com
Wed Oct 7 15:52:17 EDT 2015


On Tue, 06 Oct 2015 19:47:07 -0400
Al Hartman <alhartman6 at optonline.net> wrote:

> That was me you bought a 1.2 Extended BASIC ROM from (My last one).
> You won't need that adapter, as it is used to adapt a 2764 EPROM for
> use in place of a masked ROM or a 68766/68764 EPROM.
> 
> -[ Al ]-
> 
> -----Original Message----- 
> From: Richard E. Crislip
> 
> On Mon, 5 Oct 2015 21:42:40 -0500
> Zippster <zippster278 at gmail.com> wrote:
> 
> > Hi Richard,
> >
> > They are just an adapter for using a standard 28 pin ROM in place of
> > the harder to find 24 pin versions used for the BASIC ROMS in the
> > CoCo1/2.
> >
> > To make it a little easier to add Extended BASIC this days to
> > machines that lack it.  Or a custom ROM of course.
> >
> <snip>
> 
> Thanks for the answer. I have a CoCo1 that has Basic 1.0 in it.
> Someone sent me (maybe it was you) a 1.2 chip to put in it, but I'm
> still waiting for the tuit to come around (to quote Gene). Is 1.2
> extended? If not. maybe I need to order one of those too.
> 
> Cheers
> 

Thanks Al, Now Feel bad that I haven't installed it yet 8-(. I'll get
to it this week end, currently it's sitting atop Gene's old Amiga 2500.


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