[Coco] 26-3134b

[rietveld rietveld]

at least its color basic 1.3.               but still no good if you want to use the SDC
 

 

 

 
 
 
 
 
>  
> On Nov 25, 2020 at 9:05 PM, David Ladd  <davidwladd at gmail.com>  wrote:
>  
>  
>  Ed,
>
> I did not realize that the newer CoCo2B's that had the 28PIN 27xxx
> compatible EPROM's came in a Color Basic only version. I will have to
> update my little cheat sheet about that so when this comes up in the future
> I can make sure to share this information.
>
>
>
> On Wed, Nov 25, 2020 at 6:52 PM Ed Snider  <zippster278 at gmail.com>  wrote:
>
> >  Yes Henry, that's right. If you have a 'B' type CoCo2 with the single ROM
> >  chip
> >  that hasn't been upgraded to extended basic, you'll need to burn a new rom
> >  chip and remove / install jumper wires.
> >
> >  A standard 28 pin, 16K eprom (27C128 or similar) can be used.
> >
> >  Extended BASIC 1.1 goes in the lower 8K of the chip, and Color BASIC 1.3
> >  in the upper 8K.
> >
> >  For your convenience, here is the appropriate rom file...
> >
> >   https://drive.google.com/file/d/1cJlwDWX9EVv4-wAlFM_uLK0wUsLgzOu-/view?usp=sharing
> >   <
> >   https://drive.google.com/file/d/1cJlwDWX9EVv4-wAlFM_uLK0wUsLgzOu-/view?usp=sharing
> >   >
> >
> >  And here is a picture of an upgrade I did on one, showing the jumpers...
> >
> >   https://drive.google.com/file/d/14u3wsHucg8d-pJclRlLooJRboT0ZPiqu/view?usp=sharing
> >   <
> >   https://drive.google.com/file/d/14u3wsHucg8d-pJclRlLooJRboT0ZPiqu/view?usp=sharing
> >   >
> >
> >  There are five jumper wires that will need to be removed and rewired to
> >  the 128K position.
> >
> >  - Ed
> >
> >
> >   >  On Nov 25, 2020, at 4:17 PM, David Ladd  <davidwladd at gmail.com>  wrote:
> >   >   <cut>
>
>
>
> Sincerely,
> David Ladd
> ***END OF LINE***
> +-----------------------------------------------------------------------+
> | David Ladd  a.k.a. PacoOtaktay  a.k.a. Drencor |
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> | |
> | Do you have your CoCo 3 yet? |
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