>> I would love to see a PDP-8 with 1/2 size flip chips using today's smaller >> logic.
Can you get the logic ? Especially the bus / backplane driving parts. https://retrocmp.com/projects/qbone/326-qbone-unibone-alternative-bus-drivers Q-bus transceivers (DS8641 being a classic) are unobtainium in commercial qtys, the substitutes listed seem little more available Omnibus parts ... https://www.microchip.com/en-us/product/pic16f13145 An 8..28 pin microcontroller with 32 (4-1) LUTs on 1.8 - 5 V supply, might control output transistors for roll your own bus transceivers Small, cheap and perhaps sufficiently fast / flexible; also, perhaps competition for the 22V10 ? Martin
