> -----Original Message-----
> From: piclist-bounces@mit.edu 
> [mailto:piclist-bounces@mit.edu] On Behalf Of Peter Onion
> Sent: Wednesday, February 15, 2006 3:39 PM
> To: Microcontroller discussion list - Public.
> Subject: Re: [OT] Computer built using relays (with link this time)

> That's interesting.  The only computers that I know of using cores for
> logic werebuiltby Elliott Bros.in England.   There is a brief
> description of the logic here
> http://members.ozemail.com.au/~jacksmth/ell803b.htm

> Peter

OK, neet.  That is very similar to the logic used in the tty crypto
machine I mentioned, except that there was no driver transistor
required.  The source and destination cores were linked directly with
just a diode IIRC.  The trigger in this case was a 60V tube-driven
pulse.

GC

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