If you really had to, I suppose it wouldn't be too
hard to take a BC08
and run it from the RX02 board in the pedestal out to, say, an RXV11
or RX8E, but I think in practice it's not too hard to wire up a
DB25-to-Berg-40 transition board if you can't find an original one.
I've done the reverse, it wasn't hard. On my desk I have a PDP8/e with an
RX8E board in it. On the floor under the disk is a 'tabletop' RX01. I
made a cable to link them. A length of IDC cable with a DB25 plug crimped
on one end and the wires split at the other aned and connected to the
appropriate pins on a 40 pin header socket.
Somewhere I should have the notes I made doing this. which would give the
pinout of the DB25.
-tony