...

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.

Fair enough -- yes we'd like to borrow that. Can you make (or refer us to) a cheat-sheet with some simple demo instructions?