Did you notice that Vintage Computer Marketplace is ALSO mentioned in
that ad? This is a terrific time to add more stuff to VCM!!!
>
> <http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&rd=1&item=5138917267&ssPageNa…>.
>
> $800 with almost two days to go! And this is that INCOMPLETE and untested HP 1000!!!! Has everybody lost their minds?
>
> Joe
Hi All,
I'm trying to get my recently aquired PDP11/34A to boot. I already checked
that the console port is correct and that the M7856 operates correctly.
Since booting doesn't output anything on the console, I think I should
check if the contents of the ROMs on the M9301 are correct. Does anyone
have the contents of these ROMs available for me?
Regards,
Bert
> squeal continuously as long as they're attached to the SCSI bus
The SCSI cable is backwards.
I ran into this a few weeks ago.
You should also think about cleaning the heads. The easiest, totally
non-obvious way is pop the two C washers (with the power off obviously
on the head stack, and pull the stack up to gain access to the head
surface.
Clean with "head cleaner" if you can still find a bottle, or 99% isopropyl
--
TK50 media sucks.. I just had to read several hundred carts from the mid
80's and every one was sticky. The REALLY annoying thing about serpentine
media is you get to spread accumulated gunk across the ends of the tape
after each pass, and risk the motor stalling and leaving a big pile of
gunk after each direction reversal.
The Sperry 7000, aka CCI 6/32, Harris HCX/7, Tahoe, was a nice
machine
--
It has some problems. UW Milwaukee bought a Sperry 7000 and there
were microcode bugs that they couldn't get fixed which resulted in
unacceptable numbers of kernel panics.
Stephane Tsacas <stephane.tsacas(a)gmail.com> wrote:
> The Sperry 7000, aka CCI 6/32, Harris HCX/7, Tahoe, was a nice
> machine, AFAIR microcoded architecture, amd2901 based, and with a VAX
> like (reduced) instruction set.
Ah yes, the Tahoe of the 4.3BSD-Tahoe fame. It's a VAX knock-off
deliberately modified to not run VAX binaries (particularly VMS), I guess
so that DEC wouldn't sue them. They made it big-endian and reversed the
nibbles in VAX opcodes, and made a few other random changes while they
were at it. Its OS was, you've guessed it, 4.3BSD-Tahoe. It was the
most short-lived architecture in the history of BSD UNIX, introduced
after 4.3BSD and discontinued before 4.4BSD.
Just out of curiousity, does there still exist at least one (1) Tahoe
machine in the world that hasn't been melted down? I'm still carrying
the Tahoe code in the 4.3BSD-Quasijarus source tree, completely unmaintained
and bitrotten, and wondering if it will ever be touched by anyone in the
time between now and the Big Crunch (opposite of Big Bang) in which the
Universe will end.
MS
I'm in Assachusetts (Falmouth) visiting my ailing father,
taking a break at the local cafe/bithole. How is it that we're
related to our parents, anyways? Who are these people?!!
I knew my brother Gregg had an old CP/M machine of mine, plus
some other stuff, but I found out yesterday he has my ENTIRE
CP/M HISTORY HARDWARE MANUALS DOCUMENTATION LISTINGS SOFTWARE
SOURCE back to the middle 1970's, just sitting in his closet. Not
even dusty! Every CP/M thing I've ever written, back to 1976,
plus my Digital Research OEM 8" diskettes, manuals, sources
to all the ROM debuggers, CPM BIOSes, things like details on
making a 4FDC talk to Shugart 851's (plus my 801's and 851's)
(solution: the data-separator add-on card for some Tandy Model
x computer, a daughter board that fits under the 1771 chip)
software I wrote for Alloy COmputing, about 50 S100 cards
(all choice stuff; I worked for a bunch of system houses) plus
!!linkable PDOS binaries, cp/m plink, plib, plus SID (the best
debugger for cpm) PDOS docs, plus I not only didn't remember I
did this, I anally documented everything and that's printed out,
plus printed source listings (?) so even if every flop is bad
I have records. UN-f'ing-believable.
A few dozen brand-new 8" flops in those plastic flip boxes,
all nice and loose in a warm house for 25 years. TVI terminal,
my CMC Marketing S100 box (monstrous ferroresonant P.S.),
a Comark dual flop box...
4-feet of manuals and docs OEM and hand-written.
* TEI Inc was the name of the S100 box I was trying to recall
for a year, not "Compupro". Nice boxes.
* Comark is a company in Woburn MA I ported CP/M-80 for (to their
Multibuss machine) then later -- bargain of bargains for them --
I did a full port of MSDOS 2.x or 3.x to their 8086 multibuss
system, in exchange for one. THat machine was in the hands of
Don Kulha, FidoNet #125 I think, recently deceased, Napa area,
no idea what happened to it.
Plus, this CP/M machine is the "original fido", that I named
the BBS after, so named because it is a mongrel, eg. a dozen
S100 cards, all different, including homemade EPROM card. The
hardware and software documentation binder (!) has the name,
EPROM monitor/boot ("bugger"). The Konan disk controller and
the damned BASF-6172 8" hard drive (damn its miserable silicon
soul to landfill).
Oh yeah and I got a 32K Cromemco bytesaver card so I can read in
(some few types of) old EPROMs for archival purposes.
There are enough copies of bootable flops that I will clean the
drives and simpyl boot it (after the usual old-hardware-bringup
routine, though this thing was run 10 yrs ago allegedly). My
TELINK program does XMODEM so I'll get a serial link up and
transfer everything to my laptop.
Plus I have some choice oldies, a very early (76?) copy of
CBBS asm source, modem2.17, tdl/xitan FORTRAN4, Algol(!),
somebody's pascal (forgot the acronym). Just going by floppy
labels I can recall from yesterday.
I'm taking one box of docs with me as checked baggage, the other
stuff needs packing, which my brother has volunteered to do
(my expense of course).
Though I'm not very nostalgic (all my interest in old computing
predates me) I have been bemoaning the fact I have utterly no
recorded history of my work before 1994. I still have no examples
of any my early 86DOS/MSDOS work, which was an interesting time,
but maybe the 86DOS manuals are in the boxes, since I got most of
this hardware when I worked at CSSN Inc (Boylston Ave, BOston)
where I got the 86DOS manuals (and wrote an 86DOS BIOS with
that one-pass 8086 absolute assembler of Tim Pattersen's).
It's weird to come across so much stuff I have no recollection
of. I remember a lot of it, but entire projects, and notebooks
of writing, has my name on it and I recognize the style, but
I don't recall it.
It'll be some weeks before it's all shipped home, and while I swore
I wouldn't do this before I had the other old thing up, this
should be pretty easy to get up and running.
This Apple /// I picked up today has two boards in it:
1) Labelled "ICE KONAN ADAPTOR", with a ROM and 6116 RAM chip on it + a
few 74xx logic chips. It's got a 26 pin header on board.
2) Labelled "ICE multiplexor host adapter". Has a 20 pin header on it,
plus two (empty) 24 pin IC sockets (and a handful of LS logic).
Any ideas what they are? The first *could* be a clone Profile controller
I suppose - the owner swore that the Profile I got went with the
Apple /// and not the Lisa. I get the impression he hadn't looked at
either machine in years though so I suppose he could be wrong.
The system itself has a large RAM expansion board in it, but otherwise
looks to be stock.
cheers
Jules
--
"We've had a lot of loonies around this place, but you're the first one
who thought the sunrise was made out of stale beer. Now are you going to
pick up your flute and leave, or shall I part your hair with this
crowbar?"
I have 2 TZ30 drives that, instead of the short beep at power-up,
squeal continuously as long as they're attached to the SCSI bus (RQZX1
TSCMP adapter). Attached to power but not on a SCSI chain, they beep
like tey should. I honestly don't know if they work or not, because
neither I nor my cats can stand the sound long enough to check.
I do have one TZ30 that works correctly on the same mahine, so I'm
relatively sure it isn't a controller problem.
Does anybody have any idea what the deal is? Since the TZ30 is
apparently the only tape device that's bootable on the RQZX1, I'd like
to have at least 2 working units.
Doc
