22 Jan
2003
22 Jan
'03
11:51 p.m.
Hmm... Could you please list the dimensions/size/capacity of these drives?
I'm trying to cobble together an authentic late-XT or early-AT clone system,
and would like to get hold of one or two fairly early (as authentic as
possible) 1/2- or 1/4- height hard drives.
Note: If there are any serious cc history buffs out there, I'm curious when
the first CDs and or sound cards were installed in marketed XT/AT systems.
Ed Tillman
Store Automation Tech Support Specialist
Valero Energy Corporation
San Antonio, TX; USA
Phone (210) 592-3110, Fax (210) 592-2048
edward.tillman(a)valero.com <mailto:edward.tillman@valero.com>
-----Original Message-----
From: cctalk-admin@classiccmp.org@PEUSA On Behalf Of
loedman1(a)juno.com
Sent: Monday, January 20, 2003 7:23 PM
To: cctalk(a)classiccmp.org
Subject: Free stuff
The following hard drives were delivered to me yesterday
(1) Conner CP3000
(2) Seagate ST-125
(3) Maxtor 7213AT
(4) Maxtor 7245AT
(5) Maxtor LXT340A
(6) Maxtor MXT540A (3)
(7) Conner CFA340A
(8) Seagate ST-225 (2)
(9) Seagate ST-238R
Also received a bunch of miscellaneous chips and cards that I need to
sort and identify that will be available
Rich Stephenson
23 Jan
23 Jan
7:22 a.m.
Tillman, Edward wrote:
Note: If there are any serious cc history buffs out
there, I'm curious when
the first CDs and or sound cards were installed in marketed XT/AT systems.
Do you mean PC (generically), instead of XT/AT? Sound cards and cd-roms
came after the XT and AT. Sound cards and cd-roms would have been more
386/486.
Chad Fernandez
Michigan, USA
10:09 a.m.
The first soundblaster was an 8-Bit PC-XT slot card
and could be used in a PC/XT !
(Still got one around here somewhere)
Same goes for propriety CD-ROM drives like
Sony, Mitshumi an Panasonic (Non ATAPI))
Sipke de Wal
---------------------------------------------
http://xgistor.ath.cx
---------------------------------------------
----- Original Message -----
From: "Chad Fernandez" <fernande(a)internet1.net>
To: <cctalk(a)classiccmp.org>
Sent: Thursday, January 23, 2003 7:25 PM
Subject: Re: Free stuff
Tillman, Edward wrote:
Note: If there are any serious cc history buffs
out there, I'm curious when
the first CDs and or sound cards were installed in marketed XT/AT systems.
Do you mean PC (generically), instead of XT/AT? Sound cards and cd-roms
came after the XT and AT. Sound cards and cd-roms would have been more
386/486.
Chad Fernandez
Michigan, USA
6:02 p.m.
Sipke de Wal wrote:
The first soundblaster was an 8-Bit PC-XT slot card
and could be used in a PC/XT !
(Still got one around here somewhere)
Same goes for propriety CD-ROM drives like
Sony, Mitshumi an Panasonic (Non ATAPI))
Sipke de Wal
Right, but it would have been added much later. If he's going after
hard drives of the correct vintage, why add a much later sound card,
cd-rom, etc?
Chad Fernandez
Michigan, USA
24 Jan
24 Jan
11:25 p.m.
-----Original Message-----
From: cctech-admin(a)classiccmp.org [mailto:cctech-admin@classiccmp.org]On
Behalf Of Sipke de Wal
Sent: 23 January 2003 21:13
To: cctalk(a)classiccmp.org
Subject: Re: Free stuff
The first soundblaster was an 8-Bit PC-XT slot card
and could be used in a PC/XT !
(Still got one around here somewhere)
Same goes for propriety CD-ROM drives like
Sony, Mitshumi an Panasonic (Non ATAPI))
Sipke de Wal
Heh, you've reminded me I've got a single speed Mitsumi drive complete with
ISA card in an old Apricot XEN - the whole mechanism, transport and all,
comes out of the case when you hit the eject button and the top flips up
like a record player! They obviously hadn't mastered the 'tray' idea at that
point :)
--
adrian/witchy
www.binarydinosaurs.co.uk - the online computer museum
www.snakebiteandblack.co.uk - monthly gothic shenanigans
25 Jan
25 Jan
5:12 a.m.
Witchy wrote:
Heh, you've reminded me I've got a single
speed Mitsumi drive
complete with ISA card in an old Apricot XEN - the whole mechanism,
transport and all, comes out of the case when you hit the eject
button and the top flips up like a record player! They obviously
hadn't mastered the 'tray' idea at that point :)
Really? Any chance of
a photo?
--
Phil.
philpem(a)dsl.pipex.com
http://www.philpem.dsl.pipex.com/
11:08 a.m.
I have one of those drives somewhere. They are rather interesting. I'll
see if I can find it - if so, I'll take a picture of it and post it on
my server.
Ian Primus
ian_primus(a)yahoo.com
On Saturday, January 25, 2003, at 11:16 AM, Philip Pemberton wrote:
Witchy wrote:
Heh, you've reminded me I've got a single
speed Mitsumi drive
complete with ISA card in an old Apricot XEN - the whole mechanism,
transport and all, comes out of the case when you hit the eject
button and the top flips up like a record player! They obviously
hadn't mastered the 'tray' idea at that point :)
Really? Any chance of
a photo?
--
Phil.
philpem(a)dsl.pipex.com
http://www.philpem.dsl.pipex.com/
27 Jan
27 Jan
1:28 p.m.
-----Original Message-----
From: cctech-admin(a)classiccmp.org [mailto:cctech-admin@classiccmp.org]On
Behalf Of Philip Pemberton
Sent: 25 January 2003 16:17
To: cctalk(a)classiccmp.org
Subject: Re: Free stuff
Witchy wrote:
If I can dig it out of the mess of one of the guest rooms, yes, I think I
know where it is :) I've just replied to one of your c.s.a.h posts too.
Remind me by mail sometime...
--
adrian/witchy
www.binarydinosaurs.co.uk - the online computer museum
www.snakebiteandblack.co.uk - monthly gothic shenanigans
Heh, you've reminded me I've got a single
speed Mitsumi drive
complete with ISA card in an old Apricot XEN - the whole mechanism,
transport and all, comes out of the case when you hit the eject
button and the top flips up like a record player! They obviously
hadn't mastered the 'tray' idea at that point :)
Really? Any chance of
a photo? 
25 Jan
25 Jan
11:04 a.m.
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2:48 p.m.
New subject: Early CD-ROM drives (was Re: Free stuff)
Tony Duell wrote:
My only CD-ROM drive is an external Philips unit which
is clearly a
modified CD player. Officially modified -- as in a production run -- not
some hacker kludging the interfaces on, though. It _looks_ like a CD
player (and is about the same size), but has a DA15 connector on the
back as well as a couple of RCA phono sockets for audio out. Inside,
many of the chips are similar to those in a CD player -- there's one
extra chip to grab the right part of the data stream and send it to the
PC, and there's modified firmware in at least one of the
microcontrollers so that it can take commands from the PC over a custom
serial interface. The ISA card that links to this has a large ASIC (PLCC
package), an SRAM chip and a couple of buffers.
I do have the service manual for it, but it doesn't give any details of
talking to it directly or what's inside the ASICs. Just schematics and
alignment data for the drive unit itself.
Your descriptions sound somewhat, but not exactly, like the Philips CM100
CD-ROM drive and its associated interface card.
The CM100 is a top-loading drive, but it does not have any audio outputs.
It does not contain any ASICs, though it does use the Signetics CD-Audio
chip set. To that, it adds a *lot* of TTL and CMOS SSI and MSI chips
to reformat the data. The interface to the PC is via four RS422
differential pairs through the DA15 connector.
The microprocessor in the drive is an 8051. I've disassembled the code
into a source file and commented large portions of it.
The interface could have, with only minor changes, supported multiple
drives attached to one controller, but they didn't implement that. They
did put a DIP switch on the drive to select a unit number, but they
didn't put in enables for the RS-422 drivers.
The drive is designed to display some diagnostic information to an
external four digit LED display module made by III-V Semiconductor, a
spinoff of National Semiconductor now known as Three-Five Systems.
These LED modules are no longer readily available, so I programmed
a PIC with a character LCD module to replace it.
Philips also made the CM110, which was a CM100 with an internal SCSI
bridge board added. I haven't been able to find one.
DEC OEM'd the CM100 as the RRD50, and made their own Qbus and Unibus
host adapters for it. I've been looking for those, too.
I also have the manaul for the CD player that it was
based on.
What model was it?
Eric
26 Jan
26 Jan
8:16 a.m.
New subject: Early CD-ROM drives (was Re: Free stuff)
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27 Jan
27 Jan
1:31 p.m.
-----Original Message-----
From: cctech-admin(a)classiccmp.org [mailto:cctech-admin@classiccmp.org]On
Behalf Of Tony Duell
Sent: 25 January 2003 18:50
To: cctalk(a)classiccmp.org
Subject: Re: Free stuff
5 years ago? I think not :) In 1998 severalteen speed IDE CDs were the norm,
not single speed with their own Mitsumi ISA card.....I was indoctrinated
(against my will) into the PC world in 1996....tray loading CDs were
completely the norm - Mitsumi style drives had died a death many years
before.......my gf was working in IT then and she kept some of the old style
interface cards from 1990 or thereabouts. Good job I kept 'em 'cos they fit
in with this group now :)
--
adrian/witchy
www.binarydinosaurs.co.uk - the online computer museum
www.snakebiteandblack.co.uk - monthly gothic shenanigans
Heh, you've reminded me I've got a single
speed Mitsumi drive
complete with
ISA card in an old Apricot XEN - the whole
mechanism, transport and all,
comes out of the case when you hit the eject button and the top flips up
like a record player! They obviously hadn't mastered the 'tray'
idea
at that
point :)
Those were very common about 5 years ago... I guess there are plenty
still around.
28 Jan
28 Jan
2:35 p.m.
[Mitsumi CD ROM drives]
5 years ago (well, OK, middle of 1997) was when I finished my last job,
in major UK University. I am _sure_ of this because there's an HPCC
conference every 5 years...
Many of the 'public access' machines in the university terminal rooms had
this sort of CD-ROM drive. They certainly weren't new, or the 'latest
thing', but they were still in use.
-tony
Those were
very common about 5 years ago... I guess there are plenty
still around.
5 years ago? I think not :) In 1998 severalteen speed IDE CDs were the norm,
29 Jan
29 Jan
5:40 p.m.
-----Original Message-----
From: cctech-admin(a)classiccmp.org [mailto:cctech-admin@classiccmp.org]On
Behalf Of Tony Duell
Sent: 29 January 2003 00:48
To: cctalk(a)classiccmp.org
Subject: Re: Free stuff
[Mitsumi CD ROM drives]
were the norm,
5 years ago (well, OK, middle of 1997) was when I finished my last job,
in major UK University. I am _sure_ of this because there's an HPCC
conference every 5 years...
Many of the 'public access' machines in the university terminal rooms had
this sort of CD-ROM drive. They certainly weren't new, or the 'latest
thing', but they were still in use.
Aye, I can see them still in places like that where they're not used too
much, and those beasts aren't going to physically break easily. Plus, you
can stand a mug of coffee on them :)
--
adrian/witchy
www.binarydinosaurs.co.uk - the online computer museum
www.snakebiteandblack.co.uk - monthly gothic shenanigans
Those
were very common about 5 years ago... I guess there are plenty
still around.
5 years ago? I think not :) In 1998 severalteen speed IDE CDs 
5:20 p.m.
On Wednesday, January 29, 2003, Witchy wrote:
Of course, if you're foolish enough to sit a liquid there while the machine
is running (or even while it is off), you deserve the eventual result! :-)
--
Jeffrey Sharp
[Mitsumi CD
ROM drives]
Plus, you can stand a mug of coffee on them :) 
28 Jan
28 Jan
3:40 a.m.
What do you want for it? Does it have docs and/or software?
Cheers!
Ed Tillman
San Antonio, TX, USA
> -----Original Message-----
> From: cctech-admin(a)classiccmp.org [mailto:cctech-admin@classiccmp.org]On
> Behalf Of Sipke de Wal
> Sent: 23 January 2003 21:13
> To: cctalk(a)classiccmp.org
> Subject: Re: Free stuff
>
>
> The first soundblaster was an 8-Bit PC-XT slot card
> and could be used in a PC/XT !
>
> (Still got one around here somewhere)
7879
days inactive
7885
days old
15 comments
10 participants
participants (10)
-
ard＠p850ug1.demon.co.uk -
Edward.Tillman＠valero.com -
eric＠brouhaha.com -
ETILLMAN＠satx.rr.com -
fernande＠internet1.net -
ian_primus＠yahoo.com -
jss＠subatomix.com -
philpem＠dsl.pipex.com -
sipke＠wxs.nl -
witchy＠binarydinosaurs.co.uk