22 Jun
2007
22 Jun
'07
9:49 p.m.
Ethan Dicks said:
What I haven't been able to find online is a list
of the boards that
an H-11 typically shipped with. I know it used an LSI-11 (11/03) CPU,
so there's that, plus a console SLU board, probably a Heath one (don't
know the part number), the H-27 host card, and at least 16K of RAM,
I'm figuring, but is there anything else? In particular, I'm thinking
about bus termination... an unremarkable PDP-11/23 board set might be
a KDF-11 + MSV11 + RXV11 + DLV11E + BDV11... that gives you (in order)
CPU, memory, disk, console SLU, and bootstrap/terminator. What's the
equivalent combo for an unremarkable H-11?
I'm certainly no expert on Heath gear, or DEC gear for that matter, but I've been
lucky enough to snag a couple of H11s in the last year. Here's what are in my two
systems:
Sytstem 1:
- M7270 : KD11-HA : LSI 11/2 CPU
- WHA-11-16 : 16KB memory
- H-11-5 : Serial I/O
- H27 : Floppy I/O
- M8028 : DLV11F : Async SLU
- WHA-11-16 : 16KB memroy
System 2:
- M7270 : KD11-HA : LSI 11/2 CPU
- MSC 4601 : 16KB memory
- H-11-5 : Serial I/O
- H27 : Floppy I/O
- H-11-5 : Serial I/O
- H-11-5 : Serial I/O
I haven't been able to test these out yet, though I have gotten as far as reforming
the PS capacitors and running the PSs thoroughly.
I have some original documentation for the H-11-5 serial boards, and comparing
that with the DEC handbook I discovered that the configuration jumpers, etc. are
essentially the same as the DLV11.
If these two systems are at all 'ordinary' and 'unremarkable' then there
you go!
Hope this helps!
BTW, I might have HT11 on floppies hidden in some boxes. Haven't yet gotten to
doing the software inventory.
- J