[Coco] 68764/68766 EPROMs

Al Hartman alhartman6 at optonline.net
Tue Oct 6 19:47:07 EDT 2015


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

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