[Coco] 1mb and 2mb memory upgrades

[Frank Pittel]

While you can use an AT or ATX power supply keep in mind that for the "main" power you
need to jumper a couple of pins.

The Other Frank


On Fri, Mar 13, 2015 at 09:49:38AM -0400, Brian Blake wrote:
> Power the Coco from an AT or ATX power supply, and I'd think that problem
> goes away.
> 
> Well, except for the fact all known expansions of that size are designed
> for the external power...
> 
> ------------------
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> On Mar 13, 2015 9:14 AM, "Joe Grubbs" <jsgrubbs at hotmail.com> wrote:
> 
> > I meant to ask this the other idea when the topic came up. I believe
> > someone said that the 1mb and 2mb upgrades required the use of
> > another/second power supply. Is this due to the fact that the CoCo3's
> > supply is too weenie to handle it, or were different voltages needed for
> > the memory that was being used?
> >
> > If the former, has anyone considered bolstering the power supply with a
> > better transistor, heat sink, and perhaps a stouter transformer. Or maybe a
> > newer high current switcher?
> >
> >
> >
> >
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> >
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