-Alexander 'Z' Pierson: Two machines come to mind: The uKENBAK-1 and the ELF membership card. I have the former, and I'm willing to lend but the latter I'm sure someone else has on hand.
http://www.sunrise-ev.com/membershipcard.htm For those not familiar: The 1802 Membership Card is a reasonable replica to consider. It's pretty close in design, to the original 1976 RCA COSMAC ELF. It's part of a long tradition of ELF-like systems sold over the decades. It has toggle switches and LEDs, like the original; all parts are like-vintage. And it's not hard to build, it's sold as a kit with how-to-assemble manual. All of that, is a deliberate effort to replicate the vintage experience. This model been in distribution for several years now. Interest is steady, people work with them in the ELF/COSMAC community. I can provide one for display, but I can't be there to run it. In operation, you either run it from a serial terminal (USB dongle to a laptop), or toggle-in programs and run those (blink lights, make sounds if there's a speaker, etc.), or run from ROM. The ROM runs a monitor, or BASIC, or of course any program in ROM. But even as a static display, it's pretty neat to see a small compact microcomputer. Since it's the size of an Altoids can, it won't take much table space. Contact me, or the developer Lee Hart, if there's interest in displaying a model. Cheers, Herb -- Herbert R. Johnson, New Jersey in the USA http://www.retrotechnology.com OR .net preserve, recover, restore 1970's computing email: hjohnson AT retrotechnology DOT com or try later herbjohnson AT retrotechnology DOT info