From: fred.van.kempen@microwalt.nl (Fred N. van Kempen)
Subject: [pups] pdp11 in Utah
Date: Thu, 1 Nov 2007 16:25:43 +0100 [thread overview]
Message-ID: <F350380792C6874E9C863738FA0E73850FFE67@MWNLEX01.mwcorp.lan> (raw)
Hi All,
That's a BA23 in tower stand, aka a room heater.
The system looks like a Micro-PDP11/23 or /53.
The tape unit seems to be an old model TK50 (it
has no markings, which was standard for the old
units), the disk could be an RD-53, it has the
same alu frame. Other disks (RD54) are full-metal,
or smaller (RD31, 32, 20).
The buttons on the front panel seem to be just 4,
not 6. The original Micro-11 (aka 11/23) had 4,
because it could handle only a single disk (the
10MB disk RD50); the newer systems had two extra
buttons (online and WP) for a second disk.
So... looks like a Micro-11[/23] with larger than
standard disk (RD53)and the original TK50 tape.
On the back panel we only see the bulkhead for the
system-standard DZV-11 4-port async module, of
which ports 0 and 1 (console and aux, resp) are
in semi-fixed mode.
Cheers,
Fred
PS: for people in NL; I have a few 11/53 systems
left... :)
next reply other threads:[~2007-11-01 15:25 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-11-01 15:25 Fred N. van Kempen [this message]
[not found] <mailman.3.1193882401.82886.pups@minnie.tuhs.org>
2007-11-01 13:02 ` Milo Velimirovic
2007-11-01 14:34 ` Brad Midgley
2007-11-01 15:15 ` Kees Stravers
2007-11-01 16:28 ` Gregg C Levine
2007-11-01 15:27 ` Robert Armstrong
2007-11-01 15:34 ` Robert Armstrong
2007-11-02 22:07 ` Jochen Kunz
-- strict thread matches above, loose matches on Subject: below --
2007-10-31 17:39 Brad Midgley
2007-10-31 20:44 ` Gregg Levine
2007-10-31 23:09 ` Brad Midgley
2007-11-01 7:21 ` Wilko Bulte
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=F350380792C6874E9C863738FA0E73850FFE67@MWNLEX01.mwcorp.lan \
--to=fred.van.kempen@microwalt.nl \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).