--- John Dykstra <jdykstra_at_nortelnetworks.com> wrote:
> I have several jars of ferrite cores made by IBM sometime in the late
> 1950's. I don't know exactly what size they are, but they can be
> hand-wired without a stereo microscope.
Cool.
> As I recall, I used something like #60 enameled wire. One of the
> challenges was stripping the insulation off the ends of the wires without
> damaging the copper.
Heat? Chemicals? Friction?
> If anyone is seriously intending to build a demo core memory system, I'd be
> glad to provide a couple of hundred cores. I'd recommend something like a
> 16x16 array, unless you're looking for a project to make a 20-to-life
> sentence go faster.
I'm serious. I really have wanted to build something like this. In terms
of size, the problem isn't the wiring, it's the redundant circuitry.
-ethan
_________________________________________________________
Do You Yahoo!?
Get your free _at_yahoo.com address at
http://mail.yahoo.com
Received on Wed Apr 21 1999 - 11:57:59 BST