2015-03-15 17:18 GMT+01:00 tony duell <ard at p850ug1.demon.co.uk>:
> You won't find ANYTHING that
supports 1702 devices, they needed 80
V to
program.
I checked, and the 29B/Unipak2B combo does not support them. Does anyone
know if DEC used 1702s in anything PDP-11?
I don't know about the PDP11, but the Omnibus (PDP8/e , etc) EPROM board
uses them. They are
soldered to the board with jumper blocks on the top connectors to connect
them to the Omnibus
interface circuit. For programming you connected the programmer
(presumably with a special cable)
to said top connectors in place of the jumpers.
I think that you mean this card:
http://www.datormuseum.se/computers/digital-equipment-corporation/pdp-8-e
The programmer is a rack mounted unit with integrated connectors where you
plug in the board. The programmer has a fan to cool the board while
programming. I have said programmer but I am unsure about how to connect it
to anything and unfortunately the lid of one of the 1702 is missing.
Otherwise it is a nice board.
The only thing I have that will program 1702As (which,
IIRC are not the
same programming spec as
the original 1702) is my Intellec MCS8i.
Are there any other early PROMs I'm likely to
run in PDP-11's that are
also
going to be difficult to deal with?
They did use the 3-rail 2708 quite a bit. Many modern programmers can't
handle that one, I have
no idea if the 29B can.
Not EPROMs, but the early PLAs like the 82S100 turn up in some PDP11 stuff
(11/44 I think is full of them).
-tony
-tony