I was reading ?The Fire in the Valley? ? the story of how the computer
became a mass-consumer product - and the wrestling of control by
experimenters & hobbyists of computing technology from elites - the
computer cognoscenti. This beginning age(1970s-80s) saw the rise of
the technocrat, the nerd, the geek who revolutionized technology but
who today are the computing elite and control our technocratic society
for good or ill. Vintage computers, the beginning era, has been
subsumed by a technology so rapidly advancing it threatens to
overwhelm us yet I still look back with fondness and I hope we can
revive some of that era?s experimentation if only to validate a true
hacker ethic.
Murray--
I got the following PowerMacs ready to go
A PowerMac 8500 with 48MB RAM and a 1GB HDD- Running Rhapsody Dev
Release 2 with throw in more ram $75 shipped
a PowerMac 9500 with 160MB RAM 1GB HDD running MacOS 7.6 $125 shipped
a Quadra 650 with 16MB RAM and a 1GB HDD running MacOS 7.6- Will throw
in some 32MB SIMMS $50 shipped
50 PIN SCSI Hard Drives, Any Size $15 dollars shipped each, Let me
know what size you need
Keep watching the list as I go through and prep more machines for sale.
Hi
Update on the SCSI to IDE/SD project S2I.
A lot of recent progress. Still looking for testers.
Thanks!
Andrew Lynch
Hi Folks,
I have just uploaded developmental firmware version 0.3. Here is what I
remember of the changes made:
* Support for either IDE or SD Card interface
* Support for Pseudo-DMA (you MUST mod your prototype card for this to
work)
* Support for on-chip target device selection
* Substantially improved handling of status codes and sense bytes
* Substantial refactoring of protocol phases -- much cleaner and more
modular
Still looking for testers!!!
-Wayne
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I'm trying to restore a Data General MV/2500 (c.1989) which contains
what DG referred to as a '130MB CTD'. It's actually a Fujistu M2451A.
My question is: what is the latest generation of DLTs that I can use in
the drive? Will DLTtape III cartridges work or do I have to try to find
CompacTape IIs from somewhere?
Thanks,
Steve
Restoration website: http://stephen.homedns.org/dg/
I discovered two reels of tape--I assume that they're just different
versions FORT045 and FORT046, as they have different dates (86 and 87)
printed on them.
Glenn has the ZIP of the TAP files. I can send copies to whoever wants
them.
Do let me know if either amounts to a hill of beans.
--Chuck
The connections from the drive select outputs on the RL8A checked
perfectly to the line receiver inputs on the RL logic board. While I
appreciate Rick's taking the time to make me a selectable version of
the RL02 oscillating seek.... he included a bug at no charge too ;)
Specifically, the constant at 0230 (0100) selects the appropriate
drive and resets it all right (0101 in AC). But - later on down the
program, the SEEK (03) command is issued with another RLCB... however,
the AC is forced to 0003 by the microprogrammed 7325.
(As is probably apparent by now, the AC must have 0103 in it to select
Drive 1).
I edited the program to use a TAD 0231 and put the constant at 0231.
So instead of the CLA CLL CML IAC RAL (load AC with 03 the hard way,
an old-time DEC programmer's way to save one word when memory was a
precious commodity) :) the AC now loads with 0103 and lo and behold,
Drive 1 seeks merrily away! Restore the two constants to Drive 0 and
THAT drive seeks. OK.
However, all was not lost... during the couple of hours of chasing my
tail wondering where the LSB of the drive select was going, I found
that I had inserted the header into the RL logic board crookedly and
bent two pins, one in the wrong hole and one shoved aside! :(
Not only that, the line driver chip which provides the drive select
signals had come from the factory with NO solder at all on its Vcc pin
16!
=:^O
Fixed that too.
I think the OS/8 packs have been wiped out by now... various FAULT
lights coming on, especially on the 2nd drive in the chain... going to
build another system pack with VTserver which takes a good half-hour
or more at 19200 baud. Hope the servo tracks are ok, otherwise I'll
need to buy a couple of good packs!
-Charles
I'm just getting to know my "new" 11/35 and have some questions about the
current configuration.
1) Was the M981 (unibus jumper/terminator) unique to the 11/35(40)? It's not in
the field guide but is mentioned in the Unibus Troubleshooting Manual. I'm
assuming it provides near-end termination for the bus but it's curious that the
termination portion is on the far side fo the jumper. The only other examples of
the M981 that I've seen are in other 11/35 systems.
2) The system has 32KW of core - 8K in the chassis in an MM-11S system unit and
24K in a separate CMI Expandacore box. The MM-11L unit is a little strange in
that it is composed of the expected G110 control module and G231 drive module
but the core stack is an H215 (parity) rather than H214 (non-parity) unit. Does
this matter? If it does, how would it affect operation?
3) This is a "vanilla" system with none of the available CPU options. It does,
however, have an M7840 EAE board (KE11-B) which supports hardware multiply and
divide. Does this make sense?
4) The system is in a BA11-DB(?) case - 10 1/2" high with H750 power supply on
the right side (from the front of the chassis). As received, there are no covers
for top, bottom or power supply. Anyone have any spares, or if not, pictures
and/or measurements of the original parts? Shouldn't be too hard to fabricate
but it would be nice to be as original as possible.
OK - that's all for now!
Thanks,
Jack
I was cleaning the head on one of my 9-track drives and used a tape that
I've had around for while to check my work. It's labeled VAX-11 FORTRAN
FORT046.A and seems to be backup tape for VAX FORTRAN 4.0. Total length
is only about 750KB.
Anyone interested in the contents before I scratch the tape?
--Chuck
Hi!
I know they're not quite classic as some of the other systems discussed on this list, but anyone have a SelectaDock I in decent condition they'd like to part with?
Thanks in advance!
-Ben
