I'm trying to build the smallest possible tangible PDP-1 emulator. My ideal scenario would fit the circuit onto a double-sided 90 x 55mm PCB.
Hence, I need to fit 119 lamps (LEDs) and 44 switches into this area. The LEDs are no problem, but are there such things as tiny, tiny slide switches or subminiature DIP switches? The smallest I can find are SMD DIP switches with .050" lead spacing; is there anything smaller than this?
(It does not have to be practical. Merely amusing, and theoretically operable).