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Re: [N8VEM-S100:2552] A new 16MB S100 Bus static RAM board
Hi John,
Yes, I'll plan on a mezzanine board order as well.
Thanks!
Todd
* John Monahan <mon...@vitasoft.org> [140227 18:04]:
> Two things guys,
>
> First this "board" actually requires the fabrication of two separate boards.
> The S100 Board itself and for each board two mezzanine boards. If I
> remember correctly, for the last run of the mezzanine board they did 12 on
> a "board" and cut them to size. I have enough of the mezzanine boards for
> my own use, but Todd you will need to include a batch run of the mezzanine
> boards as well.
>
>
>
> I'm not sure how these things will cost out. When Andrew sees this e-mail
> perhaps he can help.
>
>
>
> I have not heard back from Andrew yet on the minor updates for this board
> (or MSDOS board) yet to know when they will be ready to send for fabrication
> etc.
>
>
>
> Please be patient, there is a lot of things in the works right now.
>
>
>
> John
>
>
>
>
>
> Second point. There with the pin sockets I use (Jameco #2168173 & 53532)
> there is enough room with the mezzanine board to fit a S100 board in the
> next slot. Actually the holes on the S100 board are so tight you don't
> need the socket, on the final board, I am going to test everything and once
> assured all is well solder the mezzanine board directly to the S100 board.
> I have not done this on the prototype board since I want to move the RAM
> chips around.
>
> From: n8vem...@googlegroups.com [mailto:n8vem...@googlegroups.com] On
> Behalf Of Paul Birkel
> Sent: Thursday, February 27, 2014 1:38 PM
> To: n8vem...@googlegroups.com
> Subject: Re: [N8VEM-S100:2550] A new 16MB S100 Bus static RAM board
>
>
>
> IFF we're going to do a volume purchase, than please list me for one board
> with the two associated daughter-boards. I assume that we're talking about
> a target cost of $25 given that there are three boards involved and thus
> more in^2.
>
> If the intended panelization runs the daughter-boards across the top then
> perhaps three should be included given the overall board width as compared
> to an individual daughter-board length?
>
> Or perhaps they can be panelized along one end of the motherboard?
>
> (And it seems such a shame to see that real-estate across the upper-board go
> to waste! Oops, be "underutilized" :->.)
>
>
>
> On Thu, Feb 27, 2014 at 8:41 AM, Todd Goodman <t...@bonedaddy.net> wrote:
>
> I'm willing to coordinate a larger purchase and will take three of these
> boards myself.
>
> Todd
>
> * monahanz <mon...@vitasoft.org> [140226 20:03]:
>
> >
> >
> > Back over 2 years ago Andrew and I put together an S100 bus "4MB Static
> RAM
> > board" with IEE-696 8/16bit data carrying capacity. This board has proven
> > to be very popular and very reliable. Over 30 boards were already made
> and
> > distributed to users. However in our quest to install 16 and 32 bit CPU's
> > on the S100 bus, 4MG has started to look like a limitation. The S100 bus
> > is capable of addressing up to 16MG. For this 4 of the above boards would
> > be needed.
> >
> > Over the past few years the price and availability of high speed static
> > RAM's have changed dramatically. It is now feasible to place 16MB of
> > high speed IEE-696 8/16 bit RAM on a single board. A prototype of this
> > board is described here:-
> >
> >
> http://s100computers.com/My%20System%20Pages/16M%20RAM%20Board/16MG%20RAM%20
> Board.htm
> >
> > It's unclear what the interest is in people obtaining a "commercial style"
> > bare board like this. I will definitely be getting 4 for myself. If you
> > absolutely need one sooner rather than later let Andrew know we can
> include
> > you in the early "first batch". Otherwise stay tuned for a later group
> > purchase by (hopefully) a group member that will organize a larger
> purchase
> > - at a lower price. If there is group member right now that could
> > coordinate a purchase all the better.
> >
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