Quick question for those people with HP 1000 machines and the like...
what are the front-panel keys like? Only I have a few discarded HP
keys here that are all alike:
Corbin Cabinet Lock CAT99
Corbin 4T1427
All the keys are brass. Are they for an HP front-panel lock of some
sort? If so, which?
--
John Honniball
coredump(a)gifford.co.uk
John Honniball <coredump(a)gifford.co.uk> wrote:
> Corbin 4T1427
This would fit several models of classic HP 3000 -- mine has worked
in a Series III and also in a Series 58, and I would expect it to work
in at least Series II, 44 and 58. But not on Series 37, 64, 68, 70,
or Micro 3000s.
-Frank McConnell
SORRY, DRIVER FOR Citizen Type II printer model iDP-560-RSL
COULD YOU SEND THE CONTROLLER, IF IT IS THAT YOU HAVE IT?
PODRIAS MANDAR EL CONTROLADOR, SI ES QUE LO TIENES?
PLEAS.
>> yep - someone's found the user manual for me (complete with details on
>> how to hack the card to work with 27128 chips - ahhh, the good old days
>> of computing!)
>
> Hey cool. Are these in electronic form? I'd like a copy.
yep, see: http://home.iprimus.com.au/figjams/apple2/AP-64e.pdf
Initial tests on the card seem to show it's working anyway. I need to dig out
the Apple manuals themselves to see how to use the monitor, in order to look at
data I've read from EPROM chips plugged into the card (just to verify that it's
reading OK)
>> need to hook one of the Apple systems up to the PC somehow so it can
>> communicate with the outside world. Probably be via serial, but if I
>> had a SCSI card in the Apple in theory it could share a SCSI bus with
>> the PC would would be interesting :) (I've only ever seen that done
>> between two identical modern SGI boxes - not between hardware with a
>> 20 year time difference!)
>
> I don't see why it wouldn't work though.
I imagine the controller in the Apple needs to appear as a device on the SCSI
bus; I believe that rules out some of the available cards at least. Plus the ID
of either the Apple or PC controller would have to change from the default
obviously - I think this can be done with all the Adaptec PC cards I have, not
sure about the various Apple cards that are available. Would be an interesting
experiment to try anyway.
cheers
Jules
On Jun 5, 7:28, Ethan Dicks wrote:
> --- vance(a)neurotica.com wrote:
> > Hello people. Is there any way to tell if a backplane is QQQQ or
QQCD by
> > looking at it, and without having to pull the backplane out of the
> > chassis?
> In some older chassis, you can see the backplane wiring, but not on
> boxes like the BA23 or BA123.
>
> > What if I can find the model number of the chassis?
>
> That's useful... The model numbers that look like BA-23, BA-11N,
BA-11M,
> etc., are the ones you want.
>
> Also, remember in newer boxes, it's three slots of Q22-CD, with the
> rest Q22-Q22.
That's true for a BA23 (3 slots plus 5), but in a BA123 it's four Q-CD,
eight Q-Q, and the thirteenth slot is not bussed at all.
> Older boxes can be wired for either 18-bit or 22-bit addressing,
> which may or may not involve Q-CD slots. I _think_ the BA-11N is a
> 18-bit Q-CD box... that's what I remember my 11/23 is in (but I
> added the extra wires some time ago to make it Q22).
Yes, a normal BA11-N is Q-CD. So is a BA11-S.
If you can read the H92xx number off the backplane (it's often visible
without too much effort, for example it's on the top of a BA11-M/N/S
backplane) you can look that up to see if it's straight (Q-CD),
serpentine (Q-Q) or mixed.
The following is not exhaustive, but includes the common ones:
PDP-11/03 BA11-M H9270 18-bit 4 x Q-Q
PDP-11/23 BA11-N H9273 18-bit 9 x Q-CD
H9275 22-bit 9 x Q-Q
PDP-11/23+ BA11-S H9276 22-bit 9 x Q-CD
microPDP-11 BA23 H9278 22-bit 3 x Q-CD, 5 x Q-Q
H9281 18-bit various sizes, only two slots
(AB)
microPDP-11 BA123 54-17507
or 70-22019 22-bit 4 x Q-CD, 8 x Q-Q, 1 x non-bus
DDV11 18-bit 9 x Q-Q, slots EF are separate
Q-Q backplanes are usually referred to as serpentine (or sometimes as
zig-zag), Q-CD as straight. Serpentine slot order goes like this:
slot 1 ----> slot 2
|
V
slot 4 <---- slot 3
|
V
slot 5 ----> slot 6
etc
Some of the backplanes have optional jumpers to enable/disable LTC
interrupt, or for termination. Many carry the SRUN_L signal only on
row 1. Beware of such differences when changing backplanes or linking
two together. The DDV11 is unusual in being hex-height instead of
quad-height; the extra slots are nor bussed, except for +5,V, 0V, and
-12V, but may carry odd voltages, depending on which OEM or
experimenter last used it!
There's a rumour that the first 3/4 slots in a BA23/123 are special and
you can't use them for anything except memory or processor; that's
rubbish, they're normal Q22-CD slots and you can put anything that's
Q-CD compatible in them, so long as it's after the processor. What
*is* special is the range of PMI memory boards; if you put them in
*front* of a KDJ11-B they use the CD interconnect for the Private
Memory Interface
but if you put them *after* the CPU they use the Q-Bus like all other
memory boards.
--
Pete Peter Turnbull
Network Manager
University of York
Have minisport 2mb, external fdd (750kb only) and 10+, 2.5" floppy discs
(mostly still sealed) also manuals somewhere. It all works but the battery
life is very limited.
Could mail it to you in return for postage.
John Grunstein in U.K.
>okay i don't remember the exact name of it the card with the button, but it
>was used as a hacking card, the button when pressed issued a NMI, so and goes
>into a program on the ROM, and allows you to debug any program running at the
>time, and can also save memory contents, it was used for hacking games and
>removing copy protection from programs.
And I was going to be nice and just declare that I remember it as a debugging
tool; such that the push of a button got you to a debugging status.
___________________________________________________________________
Keven Miller mailto:kevenm@exegesys.com http://www.exegesys.com
Some time ago I got my hands on a Vaxstation 2000. I searched for some
Information about the machine and read somewhere that it should be possible
to run the VXT X terminal software on the VS 2000. The only version of the
VXT software I found was in VMS BACKUP format which I could not read. So I
put NetBSD on the machine, it runs disk-less from a PC with Linux.
Last week I searched again and found version 2.1 of the VXT software in tar
format, so I could finally try it. It works, but only in monochrome. If I
put my VS40X 4 plane color option board into the machine it seems to crash
when it has finished loading. Some pixels get randomly set and the machine
does not react on the break switch at the back. Is the color board
supported by the VXT software? Or is it a firmware issue? My board has
version 1.4, are there newer versions available? Or even older version?
Anybody want to swap firmware dumps?
The loading process via mop often takes several retries or even fails
completely, especially when loading the full VXT.SYS version. It seems to
work better if there is some load on the Linux server, perhaps the mop
daemon sends the data too fast. Has anybody else seen this effect? Is it
possible to use the VXTLDR.SYS to load the rest of the software via TCP/IP?
I know nearly nothing about DECNET and don't have any other DEC equipment
to run it on.
Another minor problem is that I don't have a real DEC mouse. I use a small
Atmel AT90S2313 micro-controller as protocol converter. It currently only
supports one mouse button and needs an Amiga mouse, but I plan to adapt it
to PS/2 mice. The information about the DEC mouse protocol I found leaves
some minor questions. How many packets per second does a real DEC mouse
send in stream mode? I chose to send 60 per second, as this was easy to
implement via the timer0 interrupt on the Atmel. What does a real DEC mouse
return as revision and manufacturer code? I return 0 for both but fear that
there may be some software which expects real data.
Soeren Gust
