[Coco] Some details on CoCo 1 ROM burning

Mark D. Overholser marko555.os2 at gmail.com
Tue Dec 21 22:15:29 EST 2021


On 12/18/21 1:06 PM, Dave Philipsen wrote:
> If I were you I'd burn the ECB ROM first, verify that everything
> works, then upgrade the CB ROM. I have the Needham's SA-20 and it's a
> reliable unit that I've used for many years. You might verify that
> the EMP-20 will specifically do the 68766 EPROMs since they have a
> slightly changed pinout and higher programming voltage than most of
> the 27 series of EPROMs.
> 
> 
> 
> 


The EMP-20's will Burn both the MC68764's and MC68766's.  I have burned 
a half dozen of MC68766's..


MarkO


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