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%20Board.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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