building my own relay computer - test-drb@ccmp.vtda.org

13 Feb 2015

On 14/02/15 09:52, Brent Hilpert wrote:
...
  On 2015-Feb-13, at 2:56 PM, Tom Sparks wrote:
> On 14/02/15 08:20, Brent Hilpert wrote:
>> On 2015-Feb-13, at 1:40 PM, Tom Sparks wrote: <snipped>
...
  Just an opinion, but the Zusie / Z3 recreation
ref'd by Pontus looks most interesting, if one wants to do an historical design vs.
something novel. my project is a what if?....
"1890 portable telegraph switching computer"

I am limiting myself to 1930's knowledge and ideas because they could
have be discovered early in time, but unpublished/lost/etc

I am welling to use modern versions to reduce the build time

...
  The Zusie site mentions the Z3 recreation in Germany.
 With a few recreations of the same machine there's the potential to benefit from
community software development.

 The Zusie fellow sure was fortunate to obtain a large quantity of good relays at scrap
prices.
 I've long been interested in building a relay computer but that's one of the
stumbling blocks - relays new are so pricey today. I noticed that with the relays

...
  Had in mind a physical implementation much like the
Zusie, upright front-access 19" relay rack with an LED per relay to show state (and
many blinkenlights).