Subject: Baseline H-11 board set?
From: "Ethan Dicks" <ethan.dicks at gmail.com>
Date: Fri, 22 Jun 2007 14:56:17 -0400
To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at
classiccmp.org>
Hi, all,
I dug out my H-11 and H-27 this week, to take yet another stab at
getting the H-27 drives working. The H-11 itself works fine with
various DEC boards (including an RXV11 + RX01), but I'd like to get it
working as an H-11, not a PDP-11 in a Heath shell.
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?
-ethan
Barest minimum:
LSI-11
16kram (or a partial populated card of 4k)
SLU (dl equivilent)
Additional items:
FDC interface for H27 (the Heath Floppy interface has a BOOT rom)
Second serial (usually printer in DEC systems)
Parallel for Heath punch reader.
A terminator is NOT required for LSI-11
nor a BDV(boot card) as uODT allwos for boot code if needed
by hand entry.
Allison