On Jan 18 2005, 17:40, Pierre Gebhardt wrote:
> The most interesting thing: A Cipher disk drive Model: SF-1221 with a
Plessey controller PN: 703340-101J.
> A 50pin cable goes to some sort of Plessey converter, another 50pin
cable from the converter to the cipher drive.
[ ... ]
> Moreover, I found a disk pack which goes with the drive: DEC 2200
BPI-12
> Is this a RK03 or RK05 pack ?
AFAIK, an RK03 pack and an RK05 pack are completely interchangeable
(someone please correct me if I'm wrong), and certainly have the same
capacity and layout. The drives are different; RK03 drives were made
by someone else (Diablo, IIRC) and rebadged by DEC, whereas the RK05
drives were actually made by DEC, and have a faster access time.
If it helps, that Plessey part number is an RK05 controller.
--
Pete Peter Turnbull
Network Manager
University of York
I have a few empty chassis, except PS. I was saving these to try and get a
few M series machines up in the shorter chassis, but my M series fixation
has been satisfied via government auction so it's time to let these parts
go. I'd just throw them in the trash as they are poor condition and mostly
just empty chassis, but I hate to do that... (but one NICE part at the end
of this list)...
1) HP 2108A cpu chassis. No M/B, just a chassis, power supply (dirty),
backplanes, and crossover PCA. The power supply is the A style. Looks like a
few boards are missing towards the front of the PS but that may be
normal/optional, I'm not up on the A style power supply. Power supply
functionality is unknown. This one includes a poor condition known dead
2108A front panel (but all switches are intact and solid).
2) HP 2108A cpu chassis. No M/B, just a chassis, power supply (dirty),
backplanes, and crossover PCA. The power supply is the A style, all boards
appear present. Power supply functionality is unknown.
3) HP 2108B cpu chassis. No M/B, just a chassis, power supply (known dead -
B style), crossover PCA, memory backplane with broken slot, ok I/O
backplane.
Available immediately for free + shipping or it'll get pitched. Then,
depending on which way I go with my dev cabinet as to form factors (2109 vs.
2113), I will have two chassis and power supplies and front panels (2109 or
2113) available to the list. All pristinely restored, cleaned, and tested...
power supply scrubbed and refoamed, etc.
and 4)... Also, I have one complete HP 21MX M-series machine (2108B)
available immediately. That's the more rare M series, not the fairly common
E series. It has been perfectly and carefully restored to mint cosmetics and
full running condition - tested and completes all diags. I really need some
cash to recoup my recent classic computer purchases so I was planning on
going to ebay with this. However, I'll consider any unusually interesting
trades.
More to come!
Jay West
Lee, a full user's manual is at
http://www.cirrus.it/pdf/232_2942.PDF
I am writing a VB6 prog to display a timing diagram from the RS232 dump as I
can find NO-ONE that has got or ever had a copy of the LA-PC-Link software !
These things seem to proliferate on EBay but no-one seems to discuss them!
(no-one is re-writing the ROM to provide some of the extended facilities ROM
features ???)
Are you (anybody?) still using an LA160 ? if so (or for more info :-) )
contact me on
alan.needham_at_humberpower.co.uk
At 18:58 -0600 1/17/05, Dwight wrote:
>Hi
> I thought I'd pass on some info about these batteries.
>I received a laptop with a "dead" battery. The voltage
>as read from a meter was "0" volts. I mean dead!
>I first stuck it into the laptop but quickly noticed
>the smell of hot resistors ( bad idea ).
I second the "bad idea" notation. I have had one (count it) one
failure on a heavily used Powerbook 3400 I've had as my primary
computer since they first came out (about 6 years, extensive airline
travel, etc.)
That was when I took a discharged NiMH battery (had been on the shelf
for 3-4 years), put it into the machine with the machine plugged in,
and ran the battery-cycling program Apple offered for the 5300 and
3400.
Battery started to charge (maybe 20 seconds), I pulled wall power (as
instructed), machine went down hard with an ugly noise and stayed
down until it got a new power supply board. I didn't see the old one,
but I'm morally certain the escape of some magic smoke was involved.
Since then I've been very very careful to deal with near-dead NiMH
batteries using a non-critical piece of hardware, rather than a
built-in charger.
However, same laptop and same battery are still giving good service
(my secondary machine, now) so I guess I second the below as well.
> Moral of the story, don't give up on these batteries.
>They are remarkably tough. Most NiCads batteries would
>not recover from such a level.
>Dwight
>
--
- Mark
210-522-6025, temporary cell 240-375-2995
Hello, world. Used to post here in another life when I was more actively collecting DEC equipment. Thought this would be a good place to start with this:
I have a VAX 6000-420 with SF200 rack available for pick-up in Rhome, Texas (20-some miles north of Fort Worth). Acquired it a few years back and haven't done anything with it, so I figure I should pass it on to someone who has an interest in it.
The system is in decent physical shape, some of the metal inside the SF200 rack has been bent a little, and if I remember correctly, one or two of the fingers in one of the card cages is broken. It has been stored in my father's house for the last couple of years.
I have never powered it on, so I cannot tell you if it is in working condition or not. If anyone is interested, I can post pictures to my personal website.
I would like to get rid of it, and I am sure my father would as well! There is no immediate hurry, however the sooner the better, I suppose.
As for what I want for it, I'm not picky. DEC (especially PDP-11) stuff, SGI or Sun (especially SGI) equipment, or any old/odd/obscure workstation type equipment would be very nice. Older SGI IRIS stuff is high on my wish list, and my brother has been desperately searching for a PERQ workstation as of late.
Anyway, if anyone is interested at all, email me personally and we can work something out.
Thanks,
--
Owen Robertson
To the owner of this equiptment. I know that you sent me a reply to this on
the 17th but my wife was on my computer and I heard a whoops. LOL... She
accidentally deleted your reply to me. Could you please resend it. Thank you
very much, she had already cleared everything permanently by the time I got
to her. LOL
Thank you for your time and sorry for the inconvience,
Greg Manuel
-----Original Message-----
From: GManuel (GMC) [mailto:gmanuel@gmconsulting.net]
Sent: Monday, January 17, 2005 5:56 AM
To: General Discussion: On-Topic Posts Only
Subject: RE: Misc available for free
I would be interested in the Commodore 128 group and/or the Zip Drive group.
Can you please tell me what shipping would be to the 19074 zipcode. You can
email me direct at gmanuel at gmconsulting dot net. Thank you in advance for
your time.
Greg Manuel
-----Original Message-----
From: cctech-bounces(a)classiccmp.org
[mailto:cctech-bounces@classiccmp.org]On Behalf Of Chad Fernandez
Sent: Sunday, January 16, 2005 5:36 PM
To: rescue(a)sunhelp.org; cctalk(a)classiccmp.org
Subject: Misc available for free
Hey all,
Free, plus shipping. I have everything split into 5 groups. I don't
want to split the groups up, as I don't want to be sending out 100 boxs
in 100 different directions.
-Commodore 128, good shape cosmetically, all cords, power supply etc,
original box, but doesn't work. It would freeze up on me, and I lost
interest.
-Zip100 for PC's (parallel port), new---I opened it, but I can't get it
to work on either of my machines. It may very well be fine, since I
can't get a Micro Solutions to work on my machines either.
-a box full of PC leftovers, a pair of earlier Pentium class chips, slot
covers, bay covers, centronics scsi cables, internal 50 pin scsi cables,
floppy cables, several fans, a small scsi drive, a small ide drive,
Hayes Accura 336 modem, drive rails, blah blah blah.....
-IBM AT motherboard, serial card, 8/16 bit VGA card, Adaptec 1542B scsi
card, 8-bit ISA MFM ST11R HD controller, Unisys Personal Workstation 2
Multiple Port Board with splitter cable drivers and instructions.
-USR Courier V Everything (older one), doesn't seem to work, but has
instructions, power supply, and good shape cosmetically..... maybe you
need a PS to fix one, or make it look better?
Chad Fernandez
Michigan, USA
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Hi tony,
>Are there any other markings on them? I remember once seeing some Mostek
>'chips' like these that had 2 off 4164s on top, and were essentially 128K
>bit DRAMs (separate CAS signals to the 2 halves IIRC).
Yes, they are Mostek - and I recall the stacked 4164's in the IBM AT - I just
posted that they were 4116s, but thats due to bad bits in the organic memory
array - you just reminded me that they were 4164's - allowing 512K on the
256K board - ahh the days of such huge capacity...
>I wondef if you've found a 32K bit version made from 2 off 4116s.
It does appear that this is what these things are ...
IIRC, there was a similar stacked arrangement for SRAM chips in the Radio
Shack (Kyocera) Model-100 - the "8k" device was actually 4 x 2k devices on
a small carrier - problem was that they brought out the 4 selects instead
of address lines, so you couldn't just put in an 8k device - I bought a
third party RAM chip which had an 8k device on a small board with some
diodes to generate a common select (the extra address lines must have been
there as well, because there was no other logic on the board) - seemed a
skunkwork design to me, however it never gave me trouble (in fact it's
still working).
What wonderful little things get created to fill in the "gaps" in available
devices...
Regards,
Dave
--
dave04a (at) Dave Dunfield
dunfield (dot) Firmware development services & tools: www.dunfield.com
com Collector of vintage computing equipment:
http://www.parse.com/~ddunfield/museum/index.html
At 17:16 17/01/2005 -0800, you wrote:
>Dave wrote:
>> about a dozen interesting looking chips, which are
>> labled: MK4116E-3
>
>That's the part number of the individual CLCC chips, not
>the complete part. The complete part is an MK4332.
This makes sense, and you are right, both parts are labled
identically... I can't find a "whole device" part number.
>> This appear to be a 9-pin DIP ceramic carrier with
>18 pin
Yes - I counted one side and failed to x2 before posting.
>18 contact each, of which only 16 are used. Those are
>plain old 16K DRAMs.
>
>> Anyone recognize these? My guess is some sort of RAM
>> (dynamic)? Clearly not the same as a standard 4116 DRAM.
>
>Just two of them packaged together.
So this is a 32k bit DRAM device? (which explains the 18
pins) - I don't recall running across such a beast before.
Been through *LOTS* of 4116 16K DIP DRAMS, and an equally
big number of 4164s over the years...
Actually, now that I think of it, I do have a bag of the
"doubled up" RAM chips from a IBM AT - these look like
two 4116's stacked on top of each other - so these are just
a variation of the same thing ...?
>> anyone know what they were used in?
>
>Some PC clones. Some Apple IIIs. Various other stuff.
Thanks.
Dave
--
dave04a (at) Dave Dunfield
dunfield (dot) Firmware development services & tools: www.dunfield.com
com Collector of vintage computing equipment:
http://www.parse.com/~ddunfield/museum/index.html
I have a chip here, an 1101 marked "sample" with a datecode of 7103. Very
likely it is a second sourced Intel 1101. The logo is a new one on me, and
I think it may be a mutant AMI, but from my resources, I am just
guessing. I dug up a 1970 AMI databook, and the logo does not match. The
one on the book is the A over M next to I version, and the thing on the
chip looks like five lines next to each other, with the first line being
somewhat curved (sort of like a half-circle) and the last being a tad
shorter with a dot over it. The standard mid 1970s AMI logo is simply
A next to M next to I.
Does anyone know if AMI tried a strange logo between the two known ones -
perhaps one that matches my chip?
Could this logo not be AMI?
William Donzelli
aw288(a)osfn.org
On Jan 17 2005, 17:06, Paul Koning wrote:
> >>>>> "shoppa" == shoppa classiccmp
<shoppa_classiccmp(a)trailing-edge.com> writes:
> shoppa> This raises a question for refurbishing older equipment: is
> shoppa> it always OK to just drop a set of NiMH's in place of
> shoppa> same-size NiCad's? Most of the "stupid" NiCad battery
> shoppa> chargers were just 0.1C trickle chargers, but the "smart"
> shoppa> ones that looked for the voltage rise at the end of charge
of
> shoppa> a NiCad may not see this with a NiMH pack. Anyone have any
> shoppa> experience?
>
> I'm not sure that a trickle charger that works for NiCd is ok for
> NiMH, and I am positive that a fast charger for the one will NOT work
> right for the other. Each battery technology has its own charging
> rules -- lead acid, NiCd, NiMH, and the various flavors of Lithium
> battery are all different in very significant ways.
Lead-acid, lithium, various others, and NiMH/NiCd certainly need very
different charging regimes, but NiMH and NiCd are very similar to each
other. The most important difference is that for a NiMH you should
stop the charging when the voltage flattens out, and before it starts
to fall again; for a NiCd you should stop when the voltage just starts
to fall again. Of course, you shouldn't let them get too hot, and you
shouldn't fast-charge very cold batteries either.
Maxim do a couple of inexpensive chips (MAX712/MAX713) that take the
hard work out of all that; used with a thermistor, they won't
fast-charge cold cells until they warm up, and they won't fast-charge
until the cell voltage rises above some threshold. I've used them but
I've not put enough cycles through enough cells to see what the life is
like. Interestingly, Maxim's data sheet indicates that the difference
between detecting the voltage slope flattening and detecting the slight
fall is less important to NiMH cells, especially when the charge rate
is fairly *high*.
That means for a lot of applications you could safely use an NiCd
charger for NiMH cells, but vice-versa would leave you with slighly
undercharged NiCds.
--
Pete Peter Turnbull
Network Manager
University of York
