I have been given a couple of these (thanks Paul) and would like to know
more about them.
These were obviously used as network stations, neither has a hard disk
and from the looks of the inside hard disks were never installed.
Both power on and blink the indicator lights on the front but I get
nothing on the connected multisynch monitor - is this normal?
Any pointer to technical info would be welcome, the HP doc archive does
not mention this model.
Regards,
-- hbp
I've just come across an HP 9000/300 and 9000/220 in a dumpster over here
at University Salvage. I see that the 300 has a 68010 (first one I've
owned), but am not sure about the 220. Both have video and 'keyboard'
connections.
I've found some 300 info using google, but nothing helpful on the 220.
Also, are these worth anything? I've got no drives with them, but I did
get a bunch of lab I/O boxes (multimeter, and other things) with them.
-- Pat
Ok, here's how lame the C64 is. I have three of them. I have three
different types of video cable. The first thing I notice is that the C64
I've been working on has a different video connector than the other two.
The other two are older; the one I've been working on newer (based on
serial numbers and internal differences). The one I've been working on is
most likely dead. I can't get anything out of it after trying various
combinations of cables and monitors.
So how come none of you C64 experts piped up to tell me that the video
connector on the C64 changed over time? The later one had more pins, and
the C64 video cable (that I searched all over for and finally found) only
plugs into the newer style connector. It won't plug into the older ones
because there are too many pins.
Worse, I can't get the video to work if I plug the cable into the back of
the 1702. I can only get it to work with the composite connector on the
front. Maybe it's because I still don't have the right cable. Whatever.
This is a nightmare.
See, this is why I have such a poor opinion of the Commodore 64. Sure,
technically it's a nice computer. But practically, it's a pile of shit.
Sellam Ismail Vintage Computer Festival
------------------------------------------------------------------------------
International Man of Intrigue and Danger http://www.vintage.org
* Old computing resources for business and academia at www.VintageTech.com *
I've got one of these cuties (monochrome monitor), but no
software or docs. Disk spins on power up, but no text at
all on screen; have tried PC-DOS 1.0 through 3.3, but no
message of any sort. Is this normal with a non-Sanyo disk,
or does it have a problem?
Anybody have a boot disk, and if so, can it be tele-disked
or would I need the physical diskette?
TIA,
m
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Hello, all:
I wanted to drop a quick note to the list to let everyone know that
I've just posted a "dot 10" release of the Altair32 Emulator.
Normally I wouldn't release a minor revision such as this, but a
heavy user of the emulator has found some minor errors in the disk image
code that causes corruption of the disk images after repeated use of the
image. He also found an error in the binary file handling code that, upon
looking at the changes history, has been around since version my first
version.
So, if anyone has been using version 2.3, please download and begin
using version 2.30.10.
Thanks.
Rich
Rich Cini
Collector of classic computers
Build Master for the Altair32 Emulation Project
Web site: http://highgate.comm.sfu.ca/~rcini/classiccmp/
/************************************************************/
It's time to thin the herd.... I don't have time for the old computers
anymore, so I'll be clearing out the rest of my collection over the
next couple of weeks.
Last time I tried to offer stuff here with "make an offer", I got no
responses, so I went the epay route this time.
If you're interested, it's an original beige case model. It lights up,
but drive access seems to be down. Has original disks in original
box, including CP/M, CP/M utilities, MS BASIC, Supercalc, and
Wordstar with the keyboard overlay. AC cord cover is intact. Aside
>from yellowing, it's in great shape.
The auction is
at:http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=20479715
73&rd=1
Thanks.
Paul Braun WD9GCO
Cygnus Productions
nerdware_nospam(a)laidbak.com
"A computer without a Microsoft operating system is like a dog without a bunch of bricks tied to its head."
The 64KZ is organized as two 32K Blocks (not 16); the A15
switches control whether that block is in the lower or upper
half of the 64K range.
Reset out disables that block after a reset to allow the boot
ROM to use that space on power up.
Override & DMA are only relevant for DMA operations.
Bank switching is done by outputting a byte to 40H
(this address is set by a jumper block/PROM):
bit 0 = bank 0, etc., and each block's bank(s) are of
course set with SW2 & SW3.
Good luck; I've got a manual somewhere that I could scan
if you haven't already gotten one elsewhere, but probably
not this weekend. Email me off-list if I can help.
m
-----------------Original Message----------------
From: "Mike Davis" <ipscone(a)msdsite.com>
To: cctalk(a)classiccmp.org
Date: Wed, 21 Aug 2002 21:48:17 -0700
Subject: Cromemco 64KZ Info Needed
Reply-To: cctalk(a)classiccmp.org
Hope this is not a duplicate. The first one did not show up.
I have just obtained a Cromemco 64KZ board. This has 64K of RAM and
I'd like to test this out this weekend. Unfortunately, I don't have
any documentation.
There are 4 banks of RAM (16K x 8) Each bank is labeled "page0",
"page1", "page2" and "page3". There are also 3 8-pin dip switches:
I have a couple of photos at:
http://www.msdsite.com/vcomp/cromemco/photos.html
Since this is a 64K board and since there is other memory in my
system. I'm hoping this allows some sort of bank switching. But
without docs, I don't know how to use it.
I assume the Bank A/B allow setting which bank a particular 16K might
reside but am not sure. And the address lines of A15, A14 are a
mystery.
Is there a way to switch banks by writing to an I/O port? Location?
Can any of you help with an explanation how this works and how I might
use the switches?
Thanks in advance,
Mike
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A message for those interested in the RT-11 project,
Jerry asked me to notify the list that he is having some ISP trouble and
will not be available by email for another week. If anyone has been trying
to contact him, he is still around, just off the net for a while.
If there's a burning need to contact him , I can get a message to him.
Dan Cohoe
Hey all;
I picked up an BA23 and a couple RA70 drives, etc etc... does anyone
know a way to jumper pins on the RA70 drive so it will come up, and
ready without having to use a control panel? I just have the drives,
any help would be appreciated... thanks
--
David Barnes
davebarnes(a)adelphia.net
OpenVMS , Tru64, Netbsd, Linux guru
and collector of DEC equipment
