All,
I've done this before with good results (I'm not much of a classic
computer buff, but sometimes I run across stuff that folks on this list
are interested in) so here goes.
I've got a Procom CDT14-T8X-ETP networked CD-ROM tower, in pristine
working condition, that I've no use for. Not exactly *classic*, but old
enough that it's -- as far as I can tell -- not worth selling on eBay
(unless someone here informs me otherwise). I thought the case, which is
up on casters, would be cool for a project of some sort, but I honestly
can't think of anything to do with it. And as far as I can tell, there's
no way to get it up and running under Linux, so... One man's garbage,
and whatnot.
In any event, if anyone's interested, they're welcome to it. First come,
first serve -- just email me saying that you want it and when you'll be
able to pick it up (I live in Vermontville, MI). Comes with the CD-ROM
tower itself, all 14 8X SCSI CD-ROM drives, manual, software (realize
this is Netware only hardware), and even the key for the doors. You'll
just need to supply two standard power cords. The case has no dents,
dings, scratches -- just a couple of very minor scuff marks.
If need be, I also might be willing to drop it off...
Thanks,
Blair
Well, it's vintage, anyway.
I took out my HP 5307A counter yesterday and discovered that it has decided
to go insane. While the CHECK function correctly registers a display of
1's as it should, external frequency measurements are complete nonsense.
60 Hz, for example, shows up as 112 Hz. A quick check of power supply
voltages shows they're all within about 5% of nominal value; there doesn't
seem to be more than a couple of mv. of ripple. The 10 MHz oscillator is
right at 10 MHz.
Any ideas or suggestions? It'd be nice to have "old reliable" back again.
Cheers,
Chuck
Several specific 9000 server questions:
(1) is there any way to figure out how to turn off the "Remote: locked inactive multiple ACCESS FAULT:" messages that come up when you go into
the CM? It seems (per newer HP hardware guides) to be looking for non-present hardware. Not sure how to trim it, though.
(2) is there any way to speed up the self tests that happen when you go "CO" ? it takes about 5 minutes to get to the PDC . . .
> Would it be possible to put a random DC-100A or HP85 tape in a TU-58 and
> connect the heads (after amplification) to an A/D like Al is doing with
> 9-tracks?
You should be able to connect the heads directly to the preamp, and use the
tapewizl directly. I was going to try recovering HP and Apple 40meg tapes
this way using a TU58 transport. I haven't looked at the head geometry on
the different drives that take DC100 carts yet, though. I know I've scanned
some documentation on the 3M transport, will need to see if I've pdf'ed it
yet.
I'm also hoping to use this on TEK 405x as well (no head movement to worry
about controlling)
I'd like to try this at some point on QIC carts, but getting firware going
to do the serpentine tracks will be a bit of work.
All
Came across some schematics for our Intel iPDS units while doing a clean-up.
Also, by a bit of a fluke, came across the Intel patent which actually
explains what is going on inside the iPDS. They give an especially nice
piece on the way the multi-processing works, and apart from a few typos
where chip functions don't agree with the schematics, it's pretty useful.
Also found some colour glossy brochures for the iPDS, in case anyone is
interested.
Cheers
Jason
Hi,
Several of my older machines run on 10Base2 networks, here.
I have found that traditional BNC tee's make cable dressing
problematic. But, "goal post shaped" tee's seem to be kinder
to the cables. (I haven't yet tried "F"-shaped tee's but I
suspect they wouldn't be as good as the goal posts).
Problem is, I don't find these sold many places. Seems
like regular tee's are the norm.
Pointers?
Thanks!
--don
------------Original Message:
>From: "Ethan Dicks" <ethan.dicks at gmail.com>
>Subject: Re: Parallel ASCII keyboards
>On 7/28/06, M H Stein <dm561 at torfree.net> wrote:
>> --------------Original Message:
>> From: "Ethan Dicks" <ethan.dicks at gmail.com>
>> Subject: Re: Parallel ASCII keyboards
>>
>> <snip>
>> My recollection is that the mid-1970s were the heyday of ASCII
>> keyboards (AIM-65 and similar machines).
>> <snip>
>> ---------------Reply:
>> ASCII keyboard on an AIM65??? Not on any of mine...
>I have to admit that I've never dug into the AIM-65 ROMs, so if not
>ASCII, then just scan codes that get converted in software?
>-ethan
-----------Reply:
Just a scanned matrix, as mentioned elsewhere, nothing on the
keyboard except the switches; guess your AIMs aren't exactly handy
at the moment :).
The -40 did have a parallel ASCII display unit and a Centronics-interface
printer, but its keyboard was still a scanned matrix.
mike
This may look familiar. I'm reposting (once), in hopes that somebody may
know the answer but missed the post last time.
I've got a DEC PDP-8/I with the typical current-loop TTY interface. I also
have an ASR-33 teletype. The teletype, though, isn't a DEC-modified
version; it's got a Data General card in it instead of the 4915 card DEC
installed in their teletypes.
I'm Data General ignorant, I'm afraid. :/ So here's my questions:
-Do your typical Data General systems use a 20ma current-loop to talk with
ASR-33s?
-What's the pinout for DG/Teletype connections? Is it something that can
be made DEC-friendly by simply wiring a different connector to the DG
TTY's cables, or are the differences in signals more extensive?
-If the solution isn't that simple, does somebody have a DEC 4915 teletype
modification card they wanted to part with (or a schematic of one) (or a
DEC-outfitted ASR33 they wanted to trade for a DG-outfitted ASR33 <g>)?
Any help appreciated. Thanks!
-O.-
Hi!
Would you have scans of the whole Minivac manual? I am particularly
interested to see if there is a schematic of the whole thing. Thanks!
Sincerely,
Jim Hanak
"Make a difference in life - Subtract!"
--
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Checked by AVG Free Edition.
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Hi Guys,
ImageDisk has reached the point where I haven't had to make any changes
for quite a while, so I have decided it is time to make the first public release
of the source code.
Thanks for waiting - the sources are available on a "Source Code" link by
the ImageDisk entry in the "Disks/Software Images" page of my site:
www.classiccmp.org/dunfield/img/index.htm
Regards,
Dave
--
dave06a (at) Dave Dunfield
dunfield (dot) Firmware development services & tools: www.dunfield.com
com Collector of vintage computing equipment:
http://www.classiccmp.org/dunfield/index.html
