PDP-8/e and terminals in West Sussex, UK

Jules Richardson wrote: Is that just prototypes that made it out of the door in some form or other or any prototypes at all, including cancelled projects? I should have stuck my hand up to claim a prototype wire-wrapped DHV11 a few (hmm, quite a few!) years ago now. I have various boards that were various projects that went nowehere. I have even more documents for project that never got as far as hardware! My VS4000-90 has green wires on it and is an early proto (although only just pre-production ... it does work very well!). My DECnis 500 may have some prototype boards in it (or available for it). But anything after that era that I've been involved in is somewhat less "interesting" as a prototype. I don't have any of the Riverstone SRP cards, but the first pass cards had all the bits on them (although not all necessarily glued on the right way by the factory!). The next pass fixed the issues and worked (IIRC). The rest of the work was just fixing the (soft) logic and the software. So if you have an early proto, it's basically cube art and if you have a later proto, it's essentially a production item (except maybe for the metalwork). Perhaps protos that don't quite make it out of the door ("the market has moved on, this'll never sell") are more interesting. To "map" the development process of anything I've worked on since about 2000 or so, you'd need an electronic paper trail plus emails. The hardware just isn't breadboarded in the same way any more. It does become obsolete much more quickly though! Which means you can more easily acquire kit which (a) was way beyond your pocket but is now free (or almost so) and (b) might actually be useful to you now rather than just "fun". Antonio