On 17/03/2018 00:28, Charles Dickman via cctalk wrote:
So the PDP8/e used the KC8-EA programmers console which has incandescent indicator lamps and the PDP8/f used the KC8-FL programmers console which has LED indicator lamps.
I have two 8/e machines, one of which has the original panel with incandescent lamps and one which is a slightly later panel (but the same type, just a later revision) which has been converted - I believe by DEC - to use LEDs. I've experimented with different LEDs, and found that some yellow ones look quite convincing, but as I remember using PDP-8s with red LEDs back in the day, I've kept the original red ones.
-- Pete Pete Turnbull
