>From: "John Allain" <allain(a)panix.com>
>
>Today I started mothballing the VAX 6000 and noticed that a large part
>of its power supply is on 3.3 volts, now common, but probably not in 1988.
>
>Seems like something was invented, probably in chip design that made
>3.3 so useful. I wonder what that was, when that landmark was reached.
>
>(For that matter, I don't really know why 5V and
> 12V were popular, on a "first priinciples" basis.)
>
>Maybe we've lost some of the people on the list who can answer these
>questions, but I'm trying anyway.
>
>John A
>
Hi
RTL was 3.6V.
Dwight
What's par for the course is that they have it classified
as FSC code 5999 - Miscellanous electrical equipment.
I have a standing search for 7040 (Punched Card Equipment),
a category that they appear to use only for laser
printers, monitors and photo-ID cameras. I suspect they
just pull the numbers out of large bowl, lotto style.
> http://cgi.govliquidation.com/auction/view?id=498212
It seems to be a keypunch/verifier, non-IBM.
There also seem to be a couple of VT-100's in the lot,
or close cousins, non-yellowed. Wonder if the keyboards
are there.
Someone with more storage space than I have should get this.
And then tell me about it so I can enjoy it vicariously.
Isn't it funny that keypunch/verifiers show up here and on
ebay in the same week?
Brian
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
_| _| _| Brian Knittel
_| _| _| Quarterbyte Systems, Inc.
_| _| _| Tel: 1-510-559-7930
_| _| _| Fax: 1-510-525-6889
_| _| _| Email: brian(a)quarterbyte.com
_| _| _| http://www.quarterbyte.com
I have just downloaded Yase-AG 2.01 from
http://www.mathematik.uni-ulm.de/users/ag/yaze-ag/
The install instructions say:
4. If you want to run yaze-ag under Mac-OS-X then
(gcc ?.?.?)
You have to use the Makefile_solaris
Refer to section "Solaris".
Which switches are to set, that I don't know at this time.
In a console session (iTerm or Terminal) I renamed the Makefile to
Makefile_save, and Makefile_solaris to Makefile, Did a Make, and
although there were many warnings, I got a working system.
Run ./yase from the same directory and was transported to CP/M land.
Apparently you don't have to worry much about the switches, but they
might reduce the number of warnings.
Jules Richardson <julesrichardsonuk(a)yahoo.co.uk> wrote:
> Was that Alison? I remember the name from the list way back and wondered
> what had happened to her, she seemed pretty clued-up on things.
Do you mean Allison Parent? I never saw her on this list, but maybe it
was before I joined.
What about Megan Gentry and Emanuel Stiebler?
MS
I just wanted to give an update on how I was making out with the disk images for the Altos 580. I was informed by another member of the group that Teledisk 2.22 & 2.23 don't really work too well for this application and suggested Teledisk version 2.15n. That did the trick as to writing an image that the Altos could use. My 1.2Mb drive wrote the images (which were 96tpi) on a DSDD 48tpi disk just fine using the older but better version. If any of you are looking for where I got those images, there is a extensive collection in a zip (or tar) at: http://computer-refuge.org/classiccmp/altos580/
The real problem was me failing to hearing absence of the "click" of the heads on the Altos drop down. The head loading solenoid (sic) was sticky and with a bit of prodding now engages the heads with the accompanying successful loading of the disks.
My thanks to those who offered to help (you know who you are!)
However (and isn't there is always a 'however'), my next saga is to try and make a hard disk work with the Altos. I've tried various MFM drives from 10mb to 40mb but with no success. The heads don't seem to move on any commands, just the nice whirring of the main motor. The HD initialization program on my diagnostics disk doesn't seem to do anything and offers a limited choice of drive parameters. Therefore I'm assuming the massive amount of jumpers on the motherboard and disk controller card must have something to do with getting the HD going. Does anybody have documentaion on the 580 jumper settings or can shed any light on how to get HD's to work?
I'm really enjoying this machine as it is fast, has gobs of memory and just plain looks good!
Thanks,
Gary F.
on 11/25/04 9:15 AM, Gary Fisher at GFisher(a)tristonecapital.com wrote:
> I'm trying to do the same thing with some (downloaded) Teledisk images for an
> Altos 580 server which has a similar 96tpi floppy with no luck (a plea for
> help here).
>
Gary Fisher
C/O Tristone Capital Inc.
Suite 1800, 335 - 8th Avenue SW
Calgary, Alberta T2P 1C9
B: 403.303.8657
F: 403.294.9543
E:gfisher@tristonecapital.com
This e-mail and any attachments may contain confidential and privileged information. If you are not the intended recipient, please notify the sender immediately by return e-mail, delete this e-mail and destroy any copies. Any dissemination or use of this information by a person other than the intended recipient is unauthorized and may be illegal. Unless otherwise stated, opinions expressed in this e-mail are those of the author and are not endorsed by the author's employer.
dear sir
HEWLETT PACKARD Microprogrammable System Computer HP2100S
is a compact data processor include: 32k word 16bit RAM ,
peripherals I/O interface,floating point and arithmetic
capabilities,interrupt,two-channel DMA ,
operator panel CRT & KEYBOARD ,software for hp2100S :
fortran,algol,basic .user can write progam and cpmpiling
program and run it .several operating system are available
HP7900A disc drive can store 5M byte in two disc fix and
removable HP2100 or HP2116 with two I/O work with HP7900
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you know above information , but my project :
i design one board install in PC for example
in PII 333Mhz and connect to HP2100 (connect to I/O for
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data on hp7900 save in file on PC this board get data
>from PC and send it to HP2100 or get from HP2100 and send
to PC for replace in file. all thing work like hp7900
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oceanid987(a)yahoo.com
please connect me
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there is a secondary aspect to voltage reduction and that is reduced power dissipation... which also translates to shoving more stuff into smaller spaces...
-----Original Message-----
From: "Joe R." <rigdonj(a)cfl.rr.com>
Sent: Dec 9, 2004 9:51 PM
To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk(a)classiccmp.org>
Subject: Re: electro-Physics: 3.3 volts
At 09:30 PM 12/9/04 -0500, you wrote:
>Today I started mothballing the VAX 6000 and noticed that a large part
>of its power supply is on 3.3 volts, now common, but probably not in 1988.
>
>Seems like something was invented, probably in chip design that made
>3.3 so useful. I wonder what that was, when that landmark was reached.
It wasn't a new invention. In was the fact that ICs were getting so
dense that they couldn't squeeze in any more circuits unless they could
reduce the space that the insualting layers took up. The layers were
already so thin that they'd break down at about 5 1/2 volt so they had to
reduce the voltage to 3.3 volts. Since then they've further reduced it to
1.8 volts and (I think) now to 1.1 volts. And there are plans to reduce it
even more. All so that they can reduce the bulk of the insulating layers
and add more gates.
Joe
I don't recall from the conversation...
-----Original Message-----
From: Vintage Computer Festival <vcf(a)siconic.com>
Sent: Dec 9, 2004 11:57 PM
To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk(a)classiccmp.org>
Subject: Re: Shugart 850 drives
On Thu, 9 Dec 2004, Steve Thatcher wrote:
> a heads up on California Digital, Although the owner still answers the
> phone, the web site is basically bogus in that he sold off most everything
> last spring. He still has drives I believe and some few miscellaneous stuff
Oh yeah? Who did he sell it to?
--
Sellam Ismail Vintage Computer Festival
------------------------------------------------------------------------------
International Man of Intrigue and Danger http://www.vintage.org
[ Old computing resources for business || Buy/Sell/Trade Vintage Computers ]
[ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]
I aquired a "bare box" (HP/) Apollo 425e machine + memory & CD-ROM several
months ago. What I have heard about Apollos sounds neat, but is geared towards
people with complete systems.
(1) I have no Domain keyboard, and from what I have seen the system does not
automatically switch to serial for console, I've even tried it with the
service switch set to "service"-it will display firmware self-test info on the
graphics display and stop, but nothing on the TTY. Is there anyone with a extra
Domain keyboard to sell or ideas for a way to use it without a Domain or HIL
keyboard.
(2) Domain/OS seems to be the neatest OS to run on it, does anyone have a
copy of Domain/OS they would be interested in selling/trading?
Scott Quinn
P.S. My apologies if this is an inappropriate use of the list.
So what's the story with 8" DSDD floppy drives these days? Are
they still available at all? I may need one for my old CP/M-80
machine; some meeces made a nice house and toilet in one. B: is
now a single-sided drive, good enough for now, but not later,
as the spindle bearing is VERY NOISY (always was). There may
be a spare DSDD drive in a box of junk and/or I may recover
the one that went weewee.
My brother Gregg will ship the zenith monitor (the box uses a
Solid State Music VB3a for 24x80 video) and parallel keyboard
and boot flops next, then I'll worry about booting.
The CMC Marketing chassis seems fine, powered up OK 10V, 18V,
-18V, (empty of cards of course), there's little tanalums on
the motherboard (for the terminator power supply) I'm running
it empty for a few hours to see what gets hot or loses the
all-important smoke inside. BIG ferroresonant power supply.
I forgot all about the shredded finger callous from extracting
S100 boards that don't have ejectors (all the time we used to
discuss "standardized" board height utterly wasted... never
happened...). Very nasty. Not all memories are pleasant.
The board stack is:
* Cromemco PRI hacked for port 74 (I have no idea why I did this;
will have to RMOFM (*))
* Cromemco TUART hacked, looks like Parallel B pins wired to
Serial B, RS-232 control? RMOFM
* Cromemco 4FDC hacked, Apparat Trash-80 data separator added,
if I remember head-load logic mumble for Shugart-type drives.
* Industrial Microsystems 32K static RAM (no jumpers!)
* Cromemco ZPU hacked, sigh, one jumper, RMOFM
* Seattle Computer Producs SCP-16K 16K static RAM, quantity two.
* SSM VB3a video terminal board, 6x7 fonts, no jumpers
* Homemade EPROM/monitor card.
(*) RMOFM = Read My Own F-ing Manual.
