Mysterious S100 SRAM card

[dwight]

With all the switches, it looks like it has bank switching.
Dwight

 
> Subject: RE: Mysterious S100 SRAM card
> Date: Fri, 24 Jul 2015 06:20:50 -0700
> From: rickb at bensene.com
> To: cctalk at classiccmp.org
> 
> > On Fri, 24 Jul 2015, David Griffith wrote:
> > 
> > > Can someone identify this S100 SRAM card?  I can tell that it's a
> 16K
> > > SRAM board made up of MM2114 chips.  Virtual beer to the first
> person
> > > who guesses where I found it.
> > 
> > Whoops!  How about if I show you the picture?
> > 
> > https://www.flickr.com/photos/32548582@N02/19969394361/
> 
> I'm pretty sure these are NorthStar RAM boards.   My NorthStar Horizon
> has two virtually identical boards in it, except the two LEDs at the top
> edge are rectangular encapsulated ones rather than the conventionally
> packaged LEDs shown in your photo.
> 
> -Rick Bensene
> The Old Calculator Museum
> http://oldcalculatormuseum.com
> 
> 
>