10 Nov
2000
10 Nov
'00
4:22 p.m.
From: Clint Wolff (VAX collector) <vaxman(a)uswest.net>
out in software. I work with enough brainy people I
should be
able to get a PLL and data separator working under matlab...
Thats the easy part. RX02 was a dual density system with
the data being recorded in double density (MFM) and the rest
of the marks in FM (single density). A PLL that can make that switch
is better than good. Hint it was done as DSP in hardware TTL
and 2901.
Rx01/02 based system (DEC or clone) only read a fixed set
of formats and that's it.
True RX01 and 02 systems the drive box was semi smart and the
cabled to the system where the card there was only a bus interface.
I have both real RX02 (also reads RX01) and also CPM crates with
"normal" 8" floppies.
a 10-pin ribbon cable coming out of it. I also have a
dual RX02 that
came with an 11/23. Can the interface card be used in a uVAX?
Yes but software support may not be there depending on version of
OS used.
Before I sell the CP/M 68K system, I want to make sure
I keep all the
DEC formatted floppies that belong to the '780.
Those were as memory serves RX01.
Allison
10 Nov
10 Nov
4:54 p.m.
New subject: Magnum-25 tester formatter
I acquired a Bell Atlantic Computer Technology Services Magnum-25 disk drive
tester/formatter that was manufactured by Doradus Corporation (what a
mouthful!) So far, I haven't been able to find out any information about it.
Anyone have any information and/or manuals? I also acquired several Dysan
drive testers and am in the process of trying to find out more about them.
11 Nov
11 Nov
12:44 p.m.
New subject: Magnum-25 tester formatter
On Fri, 10 Nov 2000, Marvin wrote:
I acquired a Bell Atlantic Computer Technology Services Magnum-25 disk drive
tester/formatter that was manufactured by Doradus Corporation (what a
mouthful!) So far, I haven't been able to find out any information about it.
Anyone have any information and/or manuals? I also
acquired several Dysan
drive testers and am in the process of trying to find out more about them.
Is that the PAT-2+? I have a manual for it if I can answer any
questions for you. My recollection is that its use is fairly intuitive,
though.
- don
12 Nov
12 Nov
5:34 p.m.
New subject: Magnum-25 tester formatter
At 03:44 PM 11/11/00 -0800, Don wrote:
It doesn't sound like it. I have a NIB PAT-2+ and a buddy of mine has
another and there's nothing on the box or in the manuals even close to the
description that Marvin gave.
Marvin, I can post a picture of the PAT-2 if you want to see if your
units look anything like it.
Joe
On Fri, 10 Nov 2000, Marvin wrote:
>
> I acquired a Bell Atlantic Computer Technology Services Magnum-25 disk
drive
> tester/formatter that was manufactured by Doradus
Corporation (what a
> mouthful!) So far, I haven't been able to find out any information about
it.
Anyone have any information and/or manuals? I
also acquired several Dysan
drive testers and am in the process of trying to find out more about them.
Is that the PAT-2+? I have a manual for it if I can answer any
questions for you. My recollection is that its use is fairly intuitive,
though.
- don
13 Nov
13 Nov
9:01 a.m.
New subject: Magnum-25 tester formatter
Joe wrote:
It doesn't sound like it. I have a NIB PAT-2+
and a buddy of mine has
another and there's nothing on the box or in the manuals even close to the
description that Marvin gave.
Marvin, I can post a picture of the PAT-2 if you want to see if your
units look anything like it.
Thanks Joe but it won't be necessary. The PAT-2 is a Dyson unit and I think
that is the unit Don was talking about, not the Magnum-25. It looks like I
have about 4 - 6 of the Dysan units and hopefully at some point I will have
time to check them out. There were a number of other disk testers in the lot
that all came from a person who repairs floppy and hard disks. I would like
to get schematics on these units though!
There was a lot of other stuff included in this lot; a SWTPC 6800 computer
manual, probably eight Mac Plus, Classic, SE computers, documentation on a
number of older floppy disks, a MAC SE still in the box, and a lot of other
similar stuff. What I am mostly interested is the documentation. I might add
that this was all free and what I didn't take ended up at either the recycle
yard or the dump. It pays to build a network of friends who can let us know
when something like this is taking place!!!!!
12:32 p.m.
New subject: Magnum-25 tester formatter
Marvin, that was a hell of a find, you lucky dog! My buddy also got lucky
when he got his PAT-2. It was in a box with about 20 different alignment
disks!
Joe
At 12:01 PM 11/13/00 -0800, you wrote:
Joe wrote:
It doesn't sound like it. I have a NIB
PAT-2+ and a buddy of mine has
another and there's nothing on the box or in the manuals even close to the
description that Marvin gave.
Marvin, I can post a picture of the PAT-2 if you want to see if your
units look anything like it.
Thanks Joe but it won't be necessary. The PAT-2 is a Dyson unit and I think
that is the unit Don was talking about, not the Magnum-25. It looks like I
have about 4 - 6 of the Dysan units and hopefully at some point I will have
time to check them out. There were a number of other disk testers in the lot
that all came from a person who repairs floppy and hard disks. I would like
to get schematics on these units though!
There was a lot of other stuff included in this lot; a SWTPC 6800 computer
manual, probably eight Mac Plus, Classic, SE computers, documentation on a
number of older floppy disks, a MAC SE still in the box, and a lot of other
similar stuff. What I am mostly interested is the documentation. I might add
that this was all free and what I didn't take ended up at either the recycle
yard or the dump. It pays to build a network of friends who can let us know
when something like this is taking place!!!!!
2:06 p.m.
New subject: Magnum-25 tester formatter
On Mon, 13 Nov 2000, Marvin wrote:
Joe wrote:
Yes, the Dysan PAT-2 was what I was referring to. The manual does not
provide schematics, but the point of contact for the units is - well a
few years back anyway - Accurite Technologies Inc.
Tech Hotline 408-433-1716
FAX 408-433-1716
M-F 0800-1700 PST
They may also have a website.
- don
It doesn't sound like it. I have a NIB
PAT-2+ and a buddy of mine has
another and there's nothing on the box or in the manuals even close to the
description that Marvin gave.
Marvin, I can post a picture of the PAT-2 if you want to see if your
units look anything like it.
Thanks Joe but it won't be necessary. The PAT-2 is a Dyson unit and I think
that is the unit Don was talking about, not the Magnum-25. It looks like I
have about 4 - 6 of the Dysan units and hopefully at some point I will have
time to check them out. There were a number of other disk testers in the lot
that all came from a person who repairs floppy and hard disks. I would like
to get schematics on these units though! There was a lot of other stuff included in this lot; a
SWTPC 6800 computer
manual, probably eight Mac Plus, Classic, SE computers, documentation on a
number of older floppy disks, a MAC SE still in the box, and a lot of other
similar stuff. What I am mostly interested is the documentation. I might add
that this was all free and what I didn't take ended up at either the recycle
yard or the dump. It pays to build a network of friends who can let us know
when something like this is taking place!!!!!
2:46 p.m.
New subject: Magnum-25 tester formatter
Don Maslin wrote:
Yes, the Dysan PAT-2 was what I was referring to. The manual does not
provide schematics, but the point of contact for the units is - well a
few years back anyway - Accurite Technologies Inc.
Tech Hotline 408-433-1716
FAX 408-433-1716
M-F 0800-1700 PST
They may also have a website.
Thanks Don. They do have a web site at http://www.accurite.com/ but they
don't seem to have any information there about the PAT series of testers.
I'll know more about what I need once I try them :).
5:15 p.m.
New subject: Magnum-25 tester formatter
On Mon, 13 Nov 2000, Marvin wrote:
Don Maslin wrote:
You ring a bell with that. As I recall, they had concluded that the
then latest round of diagnostic diskettes had pretty well eliminated the
market for the PAT series. The diskettes did very much the same job and
were sure tidier to carry around!
- don
Yes, the Dysan PAT-2 was what I was referring to. The manual does not
provide schematics, but the point of contact for the units is - well a
few years back anyway - Accurite Technologies Inc.
Tech Hotline 408-433-1716
FAX 408-433-1716
M-F 0800-1700 PST
They may also have a website.
Thanks Don. They do have a web site at http://www.accurite.com/ but they
don't seem to have any information there about the PAT series of testers.
I'll know more about what I need once I try them :).
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days inactive
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8 comments
4 participants
participants (4)
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ajp166＠bellatlantic.net -
donm＠cts.com -
marvin＠rain.org -
rigdonj＠intellistar.net