I have some more thing to move out of my shop.
These are in Kent Washington. most are too big to ship.
Hp 1000f 2117f computer. Lots of boards. Unknown condition. looks good. 400.00Hp 2753a Paper Tape 100.00Hp 7906 drive 200.00
HP 7970e Tape HPIB interface in cabinet 100.00HP 7970B tape 50.00
HP 9000/380 in Desk side Cabinet with drives and Hi-Res graphics 250.00
Intel 310 development system 200.00
General Automation computer 100.00
HP K-210 server works with drives in a Rack Free
Sun 4-260 desk side computer. No drives. missing top cover. did boot 200.00
Dec 11/44 loaded with boards in Rack, comes with 2) RA-80's, 1) TU80 in 42" rackHas 2 RA81 and 2 RA 91 drives.( loose), + a second 42" cabinet, with a 11/44 chassis, (no Boards) with a Power supply. (mint) Computer has booted in the past, but now has 12v power supply issues 600.00
Dec 11/34 Chassis and Boards 300.00
Nova 3 Chassis, Front panel and Boards 450.00
Nova 4 Chassis and boards 200.00
3 DG Desk Top computers. made out of modular units connected together like model 10/20 Style 50.00 each
Altos 486, 586, 5-15AD desk tops computers 50.00 each
Private Mail please with questions and or requests. most have not been turned on. Some have but years ago. All stored in a heated shop.
- Jerryg-wright(a)att.net
I am putting together a PDP-11/23 and have a working RSX-11M 4.4 OS running
in simh while I wait for a few parts. I want DECnet as well. I have the 4.7
kit and have done a netgen, but I can't install it because I don't have the
CEXPAR partition in my system image. I have gone over the VMR command in
the manual a few times and tried various things to try and create the
partition in my image, but have not been successful. I assume (from looking
in the manuals) that I either need to create that partition in my image, or
make room for it?
The netgen process has the defaults of 113500 as the base and 4300 as the
size. VMR complains about 'non-existing memory' for the base and if I try
the wild card I get 'alignment error'.
I have 512KW of memory that I plan to use in the real machine, so simh is
configured with that as well.
Any pointers would be greatly appreciated.
-Peter
I'm sorry if this has been asked before.
How can I send PDFs to Bitsavers?
I know I cannot just FTP and create a directory.
I am looking on the website but I am probably not reading what is
right in front of me.
Any help would be appreciated.
Per the link below, it mentions a reference manual to IBM's BASIC for the
System/3 as part number GC34-0001-1 but that no digital copies are known
to exist.
https://manx-docs.org/details.php/19,11119
I know at VCF East they've been trying to restore one of these. Not sure
if any functional system still exists (especially probably not the Model 6
with CRT and disk drive).
Anyway, if anyone happens to have the physical manual described above, I'm
just curious if in the first few pages was it publication date? (before or
after 1970?)
Also - since IBM went out of their way to re-use the BASIC from the
System/3, does that imply there was never a variation of BASIC written for
the IBM 360/370? (asking because from my understanding, the System/3 was
a lot more difficult to program and operate -- and yet someone wrote a
BASIC interpreter for it).
-Steve
Does anyone know anything about the key lock on the mains on/off
switch of the P3800?
I have one without a key. I can't identify the lock manufacturer (no
markings on it at all) so I've not been able to get a blank to cut a
replacement key. A friend who is a locksmith said she'd never seen
anything like it.
Any ideas who made the lock itself?
Were all P3800 machines normally 'keyed alike' If so, a copy of an
existing key (anyone have one?) would be a great help.
Yes, I can trvially bypass the lock/switch mechanically or
electrically. But I want to try to get this thing as original as
possible.
-tony
Is anyone out there familiar with the Wang 2200 BASIC? Of about 1973/1974
C. Corti, I think you still have one of these complete and runnable?
My question is, was its basically really "built" using TTL logic/chips?
The system didn't really have a microprocessor (neither did the early
Alto, right?)
I recall that system had many boards, the whole "CPU" box was external to
the monitor (and in the earliest versions, the power supply was also a
large external box). I can't really fathom creating a BASIC out of raw
TTL, or maybe I'm misunderstanding the approach.
-Steve
Hello PDP-11 Gurus,
I am looking for a better time-keeping alternative than the LTC in my
PDP-11/23-PLUS.
Is the KWV11-C card the best option for that or are there other options? I
have looked
around a bit and have seen some other RTC boards but don't know if they
would work.
-Peter
I'm attempting to interface with the 15-pin connector on the AX-45. I'm
assuming it uses a similar protocol as the IF-50 / IF-30 interface which
has been described in other forums
https://forum.classic-computing.de/forum/index.php?thread/29023-panasonic-r…
and has a working interface emulation
https://www.youtube.com/watch?v=1UJ5cyvNC_M
I opened up the typewriter and traced the pins of the 15-pin centronics
connector. So far I came up with this
pin 1 : GND
pin 2 : connected to the IC + has a pulldown resistor
pin 3 : GND
pin 4 : connected to the IC + has a pulldown resistor
pin 5 : GND
pin 6 : connected to the IC + has a pulldown resistor
pin 7 : GND
pin 8 : N/C
pin 9 : N/C
pin 10 : connected, but haven't been able to trace yet
pin 11 : connected, but haven't been able to trace yet
pin 12 : connected, but haven't been able to trace yet
pin 13: N/C
pin 14: N/C
pin 15: N/C
Probably these pins map to
DATA
CS
CLK
and
ACK
But this is still a work in progress - If we can figure out how to get the
typewriter to listen to our commands we're one step closer to getting it to
print.
The Packard-Bell PB440 (1963) was microprogrammable:
https://bitsavers.org/pdf/packardBell/PB-440/SP-149A_PB-440_microprogrammin…
Various earlier systems used microprogram-like techniques, but I don't
know how many were earlier than PB in their use of the word.
Was the PB-250's floating point microprogrammed?
--Chuck
