Re: Ram Factor (or the II Memory card) Technical Information Needed

[Warren Ernst <wernst@gmail.com>]

On Jan 27, 12:25 am, "Don" <numberfiveplus...@gmail.com> wrote:
> "sfahey" <sfa...@a2central.com.remove-110o-this> wrote in message
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> 4B5EF9C3.15181.usenet_csa2@a2central.com">news:4B5EF9C3.15181.usenet_csa2@a2central.com...
>
>
>
>
>
> >  To: Pat White
> >  Re: Ram Factor (or the II Memory card) Technical Information Needed
> >  By: Pat White to comp.sys.apple2 on Tue Jan 26 2010 06:09 am
>
> > > - What are the I/O addresses, and exactly what do they do
> > > - What is the max memory can they have (1 MB?)
> > > - How does the card co-operate with the built-in memory, and with
> > > memory in other slots? As you know there is only 64 KB of addressable
> > > memory at any one moment in time, so there must be some rules to
> > > determine where the currently active memory is.
> > > - Since both are ][+ compatible, are they similar to the Saturn 128K
> > > RAM card?
>
> > Most of your questions can be answered with this manual.
>
> >http://www.downloads.reactivemicro.com/Public/Apple%20II%20Items/Hard...
> > ctor/RAMFactor%20v1.5.pdf
>
> > Sean Fahey
> >www.a2central.com
>
> Slightly OT ...
>
> Does anyone have any technical information on the RamCharger?  I've got a
> 1MB RamFactor and have wondered how easy it would be to create my own UPS
> for it.  I've found the RamCharger user guide , but it doesn't tell me
> anything about connector pin-outs, current/voltage capacity, etc.
>
> --
> be seeing you ... Don
> Don Melton, Sr. Consultant, Vatic Technologies Limited
>
>
>
> > bbs.a2central.com

I've often thought that a couple of wall-warts (with the right
connectors soldered onto them) connected to a $50 UPS would make for a
modern (and probably more reliable and longer lasting) RamCharger.

I look forward to hearing the results of this.

-Warr