28 Mar
2009
28 Mar
'09
11:43 p.m.
I'm been working on a HP 3000-37 and I can't
find a list that gives the ROM size or industry std.
numbering for the ROMs.
These have the HP # 1818-3449. I would also
like to find some tech. manuals for the same, but
I'm probably dreaming again
Thanks, Jerry
Jerry Wright
g-wright at att.net
29 Mar
29 Mar
9:35 a.m.
On Sunday 29 March 2009 02:43:05 am g-wright at att.net wrote:
I'm been working on a HP 3000-37 and I can't
find a list that gives the ROM size or industry std.
numbering for the ROMs.
These have the HP # 1818-3449. I would also
like to find some tech. manuals for the same, but
I'm probably dreaming again
I've been building a bit of a list, but ROMs are one thing I'd tend to not
put on them, since without the programming the generic part wouldn't tend to
be of much use...
Anybody have info of this sort? Feel free to pass it along off-list.
--
Member of the toughest, meanest, deadliest, most unrelenting -- and
ablest -- form of life in this section of space, a critter that can
be killed but can't be tamed. --Robert A. Heinlein, "The Puppet Masters"
-
Information is more dangerous than cannon to a society ruled by lies. --James
M Dakin
9:50 a.m.
I'm been working on a HP 3000-37 and I can't
find a list that gives the ROM size or industry std.
numbering for the ROMs.
These have the HP # 1818-3449. I would also
Good luck!. I'v eyet to see any HP equivalents list that contains the
generic numbers for 'programmed' parts (except in a few cases). I guess
the argument is that you have to uy programmed bits from HP in order to
get the program.
How many pins do these ROMs have?
I've found that HP were fond of a 24 pin 8K*8 masked ROM with the same
pinout as the 2364A (I can give you that one if you need it).
like to find some tech. manuals for the same, but
I asusme there's nothing on hpmusuem.net.
I'm probably dreaming again
-tony
8:31 p.m.
-------------- Original message from ard at p850ug1.demon.co.uk (Tony Duell):
--------------
For someone that is following this. The 1881-3449 is the device
number, not a part number with the data as far as I can tell. Each
of the Eproms has its own sticker and number on it. So instead of
x27xxA printed on the chip, they have 1881-3449.
Thanks, tony
- Jerry
I'm been working on a HP 3000-37 and I can't
find a list that gives the ROM size or industry std.
numbering for the ROMs.
These have the HP # 1818-3449. I would also
Good luck!. I'v eyet to see any HP equivalents
list that contains the
generic numbers for 'programmed' parts (except in a few cases). I guess
the argument is that you have to uy programmed bits from HP in order to
get the program.
How many pins do these ROMs have?
I have to Add these are Eproms, ADM logo and 28 pins with a date of
86-12. I would guess at 265 type since they hold the micro code for the
system. there is 4 of them.
I've found that HP were fond of a 24 pin 8K*8 masked ROM with the same
pinout as the 2364A (I can give you that one if you need it).
Yes, they have a few owner/operator type manuals. But very
little in the way of technical manuals
like to find some tech. manuals for the same,
but
I asusme there's nothing on hpmusuem.net. I'm probably dreaming again
-tony 
30 Mar
30 Mar
12:15 a.m.
In their early computer days, HP was giving every ROM a unique number, you
only could order 'firmware filled rom's' .
It's a part number for a specific component in a machine and includes the
software / firmware revision.
There is even some older HP equipment witch is able to list the installed
ROM's e.g. HP150 / HP125 /HP 262X terminals etc..
And you got a list of the numbers 1881-xxxx, different for every installed
rom because the number also represents the firmware.
Later firmware packs were numbered (they contained several roms with the
same number).
Device numbers are mostly printed on the device, programmed devices have a
sticker with a number on it representing the device and firmware.
-Rik
PS when reading the HP-Journal article about the HP 3000/37 it says 'four
rom chips holding 128k bits each.......'
The article is on the hpmuseum.net
-----Oorspronkelijk bericht-----
Van: cctalk-bounces at classiccmp.org
[mailto:cctalk-bounces at classiccmp.org] Namens g-wright at att.net
Verzonden: maandag 30 maart 2009 5:32
Aan: General Discussion: On-Topic and Off-Topic Posts
Onderwerp: Re: looking for a good HP to industry std. part
number list.
-------------- Original message from
ard at p850ug1.demon.co.uk (Tony Duell): --------------
For someone that is following this. The 1881-3449 is the
device number, not a part number with the data as far as I
can tell. Each of the Eproms has its own sticker and number
on it. So instead of x27xxA printed on the chip, they have
1881-3449.
Thanks, tony
- Jerry
>
> I'm been working on a HP 3000-37 and I can't find a list
that gives
the ROM
size or industry std.
numbering for the ROMs.
These have the HP # 1818-3449. I would also
Good luck!. I'v eyet to see any HP
equivalents list that
contains the
generic numbers for 'programmed' parts
(except in a few cases). I
guess the argument is that you have to uy programmed bits
from HP in
order to get the program.
How many pins do these ROMs have?
I have to Add these are Eproms, ADM logo and 28 pins with a
date of 86-12. I would guess at 265 type since they hold the
micro code for the system. there is 4 of them.
I've found that HP were fond of a 24 pin 8K*8 masked ROM
with the same
pinout as the 2364A (I can give you that one if
you need it).
Yes, they have a few owner/operator type manuals. But very
little in the way of technical manuals
like to find some tech. manuals for the same,
but
I asusme there's nothing on hpmusuem.net. I'm probably dreaming again
-tony
10:31 a.m.
-------------- Original message from ard at p850ug1.demon.co.uk (Tony Duell):
--------------
For someone that is following this. The 1881-3449 is the device
And I should have looked in the official equivalents list from 'Bench
Briefs'. The 1818-3449 is listed as a 27128 (The 1818-3447 is also a
27128, but a different access time. I can get the exact numbers if you
need them).
I'm been working on a HP 3000-37 and I can't
find a list that gives the ROM size or industry std.
numbering for the ROMs.
These have the HP # 1818-3449. I would also
like to find some tech. manuals for the same, but
I asusme there's nothing on hpmusuem.net.
5792
days inactive
5793
days old
5 comments
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ard＠p850ug1.demon.co.uk -
g-wright＠att.net -
hp-fix＠xs4all.nl -
rtellason＠verizon.net