Hi,
I am restoring a Computer Automation Alpha LSI/2 minicomputer and need some help with software documentation.?I have a?Computer Automation Alpha LSI/2 minicomputer and cards, and I have binary images of the paper tapes, but I don't have the manual for using the software library tools.
By any chance does anyone have any of the documentation for the standard software library that came with the machine? BLD, OMEGA, LAMBDA, STP, etc? There was a standard paper tape that had all the basic software for assembly language coding and for loading and linking. The tape images are on bitsavers.org, but the manuals don't seem to be available.
The manual was called the Software Documentation Manual.?
Thanks for your help.
David Carroll
??Many of the classic Rocker & Lever Actuator switches from the 1960s & 1970s were discontinued, due to industry consolidation (M&A) in 1990s and the convert or obsolete decisions (RoHS compliance), a decade later.
This likely means you will need to ?adopt? to current offerings == OR ==
plow through remaining discontinued surplus parts.
For example, Mendelsons only lists about 5% of their Dayton warehouse inventory.
https://meci.com/electronics/parts/switches/rocker.html
==
These Large Actuators are sometimes referred to as Wide Paddles.
C&K refers to this PC board mounting as the V3 Style, VERTICAL MOUNT, V-BRACKET
It is still offered for the C&K ?T-series? Subminiature Toggle Switches.
https://www.mouser.com/datasheet/2/60/ttoggle-1324393.pdf
C&K Selector Guide (current production models)
http://www1.futureelectronics.com/doc/C%20-%20K%20COMPONENTS/D102J12S115DQA…
NKK (Japan) refers to this mounting style as Bracket & Reinforced Bracket for their ?M-series? Miniature Rocker Switches.
You purchase the Actuators separately, for the pivot ? like your example.
https://www.mouser.com/datasheet/2/295/MrockersSnapin-29723.pdf
gb
===
From: "Charles" <xxxx at centurytel.net>
To: "cctalk digest" <cctalk at classiccmp.org>
Subject: Looking for front panel switch
At some earlier time, I'd either lost (or cannibalized for a PDP-8)
one of the switches. Subminiature SPDT toggle switches are readily available
>from C&K and Mountain, but I cannot find one with the four-pin mounting
bracket and the "ears" to hold the paddle lever pivots. Attached is a
picture showing part of the front panel.
https://imgur.com/bIrmZt7
Does anyone have a matching switch they're not using?
I have a spare black lever, but it's supposed to be blue for that nibble which would be even better ;)
Thanks for any help.
==
> https://www.tedss.com/MT-SPDT-7101
Thanks :) It's only slightly different (the mounting pins look to be a bit
closer together than my switches dated 1975, but I can drill a couple holes
in the PC board, and swap my matching lever onto it.)
Certainly a lot closer than the totally non-matching chrome bat handle unit
I stuck in there for now!
-Charles
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This is my first of many posts that I will make about this sale.
I am liquidating a large warehouse filled with vintage computers including
Apple, DEC, IBM, Commodore, Tandy/Radio Shack, HP, and more. Many items are
currently inaccessible due to large piles of junk and video games.
So far, I have found:
Apple Lisa 2
Tandy 6000 HD
IBM 5251 Keyboard
MicroVAX 3900 (currently inaccessible)
MicroVAX II (currently inaccessible)
Cromemco System One
Ohio Scientific Challenger 2p
Lots of Apple II series
IBM 5110
Piles of VT100s
Even more VT220, VT320
Northstar Advantage
Osborne 1
Various Kaypros
PC clones
Commodore B-Series
Just about every kind of TRS-80
IBM XT with monitor in box
NeXT cube
Almost every type of Macintosh
Amigas
IBM PS/2 P70
HP 3000 (inaccessible)
1970s HP computers
Boxes filled with Cromemco and Northstar manuals
A pallet of 1980s PC clones (inaccessible)
Heaps of CRT monitors
Mechanical Keyboards
At least 20 Apple Extended Keyboard II's
I have barely scratched the surface of the warehouse, and will keep you
updated when I find more items, or am able to move the large systems.
The DEC terminals are not yet for sale, since I have not yet found the
keyboards.
I am not taking offers on the entire warehouse at this time.
Please feel free to text me with questions
Thomas Raguso
(832) 374-2803
> From: Christian Corti
>> we only have those for the UNIVERTER and QNIVERTER
> And what about the stuff on bitsavers?
That's where I got my copies of the UNIVERTER and QNIVERTER docs. I guess I
missed grabbing a few; and I see a few more have been added since I last
looked:
http://www.bitsavers.org/pdf/able/
So we also have the Quadrasync, DH/DM, MICROVERTER and UNIMAP. There are
still quite a few missing, though...
Noel
This fall I decided to restore my first homebrewed computer that I made
40(!) years ago and still have... a 2 MHz 8080A, 1K of static RAM, a 1702A
(256 byte) EPROM, cobbled up an S-100 connector for a VB-1B video card, an
8-bit I/O port that used an EBCDIC keyboard (ASCII translation table in the
EPROM), and of course a hand-made front panel PC board with blinkenlights &
switches. I had a good time learning assembly language (and
hand-assembling)... I also toggled in WADUZITDO once or twice. That's a
functional interpreted language in 256 bytes plus char in/out routine, for
the youngsters ;)
I sold the VB-1B years ago, and can't find the keyboard which got lost in a
move years ago. So if I want to play with small 8080 programs, I'll need to
add a UART (and redo the primitive monitor program for serial I/O instead of
memory-mapped display). Recently I bought one of Martin Eberhard's ME-1702A
boards with pre-programmed PIC, acquired all the parts from junkbox and
Mouser, and just got THAT working. Surprisingly enough, the monitor seems to
still have all the right bits after 40 years.
Anyway. At some earlier time, I'd either lost (or cannibalized for a PDP-8)
one of the switches. Subminiature SPDT toggle switches are readily available
>from C&K and Mountain, but I cannot find one with the four-pin mounting
bracket and the "ears" to hold the paddle lever pivots. Attached is a
picture showing part of the front panel.
https://imgur.com/bIrmZt7
Does anyone have a matching switch they're not using? I have a spare black
lever, but it's supposed to be blue for that nibble which would be even
better ;)
Thanks for any help.
--
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> From: Eric Smith
> Code can be executed from the MMU PAR registers on processors with
> 22-bit addressing (11/23, 11/24, 11/44, 11/70, and J-11 based systems).
My QBUS machine is apart at the moment, so I can't verify this before
posting, but I don't think this hack works on the J-11 machines; I
documented this behaviour here:
http://gunkies.org/wiki/KDJ11_CPUs#Code_in_PARs
It does work with F-11 processors (/23, etc). Not sure about model A
F-11's, which only have 18-bit QBUS addressing.
Noel
