On Mon, 5 Oct 1998, Doug Yowza wrote:
> I've always wanted to know which machines have only a single instance
> represented on this list.
How about the Expander? It's an S-100 box designed by Lee Felsenstein
that's sort of a cross between a SOL-20 and a TRS-80 model 1, only
Swedish. The only information I've been able to find on this machine is
in Kip Crosby's CHAC interview with Lee Felsenstein in Analytical Engine
3.2. According to the information in the interview, 200 Expanders were
made, but the order was never paid for, so only "a few" made it into the
public.
Is there anyone else out there with an Expander or any Expander-related
information? I plan to open it up and start tracing out the memory map
when I have a few hours of free time. I have tested the power supply, the
EPROMs are backed up, and the machine appears to be functional.
If anyone is interested, I have placed a (bad) picture of the Expander and
some additional information on the Web, at
http://xtal.pharm.nwu.edu/~ware/collection/machines/expander.html
--
Scott Ware ware_at_xtal.pharm.nwu.edu
Received on Tue Oct 06 1998 - 02:39:19 BST