Hi everyone!
Does anyone have documentation for a Vermont Research K2 Solid State
Storage device? Looks like it emulates a CDC Lark. But it may also be
configurable for other devices?
Thanks!
--
-Jon
+44 7792 149029
G'day all,
Just followed the sale of the 11/05 on eBay (#175655196586) that ended a short time ago.
It's a remarkably clean and complete machine and am not surprised at the hammer price.
I was curious what the quad-height card with two ribbon cables coming out the sides was?
It appears to have a couple leads as well, presumably going to the single-height board.
Some sort of TTY interface? I presume non-DEC from the nylon handles.
Steve
Hello everyone,
First time posting here...
I am wondering if anyone knows of someone looking to get rid of a working
(preferably) IBM AS/400e 9401-150? For local pickup it would need to be
around the Atlanta, GA area in the US.
Thanks!
-Peter
Can anyone point me to the source paper tapes for the classic Paper Tape Software programmes packages ?
The IOX, ODT, FPMP and loader/dumper source paper tapes [e.g. DEC-11-XIOXA-A-PA1 & 2] are on bit savers, but those for the assemblers / linkers seem not to be.
That the assembler / linker sources were distributed is attested by the 1970's software catalogs; from their evident rarity I infer purchases were uncommon.
While any archive of -PA tapes is of interest, those I'm particularly seeking are:
- DEC-11-UPLAA-A-PA1 to 12 PAL-11A (8k) (V007A) Source PTs [~= ASXA]
- DEC-11-ASPA-PA1 to 11 PAL-11A (4k) (V002A) Source PTs [~= ASPA]
- DEC-11-XIXLA-A-PA1 & 2 IOX LPT (V004A) Source PTs
- DEC-11ULKSA-A-PA1 to 6 Link11S (V002A) Source PTs
- also PAL11S sources, however they are not listed in the catalogs
Equally, listings would be of value, e.g.:
- DEC-11-ASPA-LA PAL-11A (V002A) (4k) Listing
Electronic copies are all I require, although if someone has a cupboard full of untranscribed physical paper tapes I could oblige.
Yours in anticipation of being able to, hopefully, add the EIS instructions to PAL-11A's repertoire.
Martin
Question: I just used a strong magnet to wipe an old Maxtor MFM drive
(magnet on outside of case). Now the drive will not even seek properly
on start up, just endlessly moves the heads..
Is the drive now toast? Do MFM drives have embedded servo information on
the platter formatted by the factory?
CZ
For my LSI-11 simulator I developed an as accurate as possible
implementation of the Console-ODT functionality as described in the "LSI11
PDP11/03 Processor Handbook" and the "Microcomputer and Memories Handbook".
As might be expected from these handbooks, the description of the ODT
functionality is not a complete specification and consequently during the
development several questions arose on the reaction of ODT on the user
input, such as:
- What is the reaction on commands like "R0/<CR>RS/4@"? Will the last opened
location be opened or the contents of the last opened location?
- What is the reaction on a RUBOUT at the prompt?
- What will be the value of the opened location when e.g. three digits are
entered and these three digits are then rubbed out and the location is
closed? Will the value of the last opened location be unchanged or will it
be zero?
- An address and a GO command can be separated by a semicolon. What is the
reaction if characters other than the "G" are typed after the semicolon?
- Etc., etc...
Is there someone in (the vicinity of) the Netherlands with a functioning
LSI-11 who would allow me to try out these commands or could anyone point me
to someone who could facilitate that?
I developed a complete test script for all LSI-11 ODT commands and "all"
relevant situations and ideally I would like to carry out this test script
to get a complete specification of the Console-ODT functionality.
Regards,
Jos
Hi all,
I picked up the pieces of a few Sun E3500s a while back but it looks like I
don't have enough for a complete system - I am missing the front Peripheral
Power Supply, 300-1358 (
https://dogemicrosystems.ca/pub/Sun/System_Handbook/Sun_syshbk_V4.1/Devices…
). I know there's one on eBay right now but I have extras of most other
parts for these machines - rear power supplies, cooling modules, FC-AL
boards, SBUS boards, etc. and would ideally like to arrange some sort of
mutually beneficial swap. Let me know if you're interested and we can work
something out. Shipping is probably not going to be prohibitively
expensive but if there is someone local I'm in the greater Cleveland, OH
area.
-Henry
G'day all,
I have just uploaded the engineering drawings for the early PDP-11/05, the one with the solid (no slots) Mazak lower bezel
and the M7261 with the unpopulated region.
The latest date I can find in this print set is October 1973, Drawing release 11/05-49.
You can view or download it from https://archive.org/details/pdp-11-05-engineering-drawings-oct-1973
It is 147Mb in size, sorry about that but I didn't want the quality to drop too much (the raw scans were ~350Mb).
Regards,
Steve.
Is it possible to use the MXV11-B2 Roms in an 18 bit MRV11-C Prom
board? Clearly they work in the 22 bit version, MRV11-D, but I don't
have one of those.
The intention is to put together a small PDP-11 in an H9281-AB backplane
(18 bit) with an 11/23 or 11/73 CPU, Ram, disk controller, etc.
