[Coco] "New" Coco 1 with keyboard and composite adapter

Zippster zippster278 at gmail.com
Fri Mar 13 10:52:10 EDT 2015


What is this “faster Drivewire” mod?

- Ed


> On Mar 13, 2015, at 9:49 AM, Luis Antoniosi (CoCoDemus) <retrocanada76 at gmail.com> wrote:
> 
> You mean to replace the opamp ?
> 
> Just replace the LM741 IC for any of these:
> 
> http://www.petervis.com/Education/741_Pin_Compatible_Equivalent_Op_Amps/741_Pin_Compatible_Equivalent_Op_Amps.html
> 
> I use the TL081 and it works like a charm.
> 
> 
> Luis Felipe Antoniosi
> 
> 
> 
> On Fri, Mar 13, 2015 at 10:40 AM, Al Hartman <alhartman6 at optonline.net>
> wrote:
> 
>> That's not an HJL. I think it's a Keytronics MB-500. And, I've peeked
>> under the shield as it had come loose in shipping, and the Extended BASIC
>> is a ROM, not an EPROM.
>> 
>> I want to put the mod into all three Coco I computers for the faster
>> Drivewire. Can someone tell me what that is?
>> 
>> -[ Al ]-
>> 



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