19 May
1999
19 May
'99
6:28 a.m.
Hi,
On Thu, 13 May 1999 Doug Spence wrote:
Yes, if your Amiga's 5.25" floppy drive is connected to the Amiga's
floppy controller, you should be able to do the same thing.
The program for doing this is on aminet:misc/emu/551conv.lha
Talking of the Amiga 1020 drive... I would like to get hold of one of these. Am
I correct in thinking that they were not sold in the UK (where I live)?
If I can't find an A1020 (or compatible replacement, if any were made), I may
try and rig up my own drive.
To this end, can some kind person who owns an A1020 open it up, and tell me
what type/model the drive mechanism is, and also describe any interface PCB
that's inside?
-- Mark
As for disk transfers, I can do that with my
handy-dandy A1020 drive
on my Amiga. It reads and writes several Atari 8-bit formats just
fine, including 810 (SS/SD) and XF551 (DS/DD?).
Hmm have to check that out. 
19 May
19 May
5:41 a.m.
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6:29 a.m.
At 06:28 PM 5/19/99 +0000, Mark wrote:
If I can't find an A1020 (or compatible
replacement, if any were made), I may
try and rig up my own drive.
You should be able to find instructions somewhere on the net for
making the conversion cable necessary to convert a standard PC
5 1/4 drive for use on an Amiga. I remember articles to this
effect ten years ago or so, as the Amiga Transformer PC emulator
was popular.
At 10:41 AM 5/19/99 -0700, Cameron Kaiser wrote:
What about hooking up the 1541/1571 drives to an Amiga?
Has anyone done this?
1541s are easy, again it's a matter of a cable. Somewhere in
my boxes of junk I have commercial adapters that did this, for
use in some kind of cross-platform disk reader. These days, the
emulator scene is so intense, they've found new ways to do it.
- John
6 Jun
6 Jun
9:16 a.m.
On 19-May-99, Mark wrote:
Hi,
Hail!
Talking of the Amiga 1020 drive... I would like to get
hold of one of
these. Am I correct in thinking that they were not sold in the UK
(where I live)?
I don't know the answer to that. I don't know of that many A1020 owners
in North America, either. :) It was basically only used for reading
MS-DOS format 360K disks with Transformer, but there was also commercial
software that used it to read/write C=1541 disks. I think one of the
RKMs mentions software for reading/writing Apple ][ disks, too, and I'd
like to locate that. (I can only _read_ Apple disks ATM).
If I can't find an A1020 (or compatible
replacement, if any were made),
I may try and rig up my own drive.
There were third party Amiga-compatible 5.25" drives made. Picking up a
random magazine (Amiga Format, January 1991) and leafing through, I
found an ad for the Cumana CAX1000S on p.165. Not really compatible,
though, as the Cumana drive has a high density mechanism in it. I think
there were others as well, also with high density mechanisms.
The Cumana drive also doesn't seem to have its own power supply. The
A1020 has its own internal supply, instead of drawing off the Amiga's
floppy port.
I've never met a C=1571 in real life, but I think the A1020 uses the
same case as that drive. Just look for a 1571 with a checkmark logo on
it. :)
To this end, can some kind person who owns an A1020
open it up, and
tell me what type/model the drive mechanism is, and also describe
any interface PCB that's inside?
The mech is an ALPS DS/DD, but I don't know the exact model number.
Doesn't matter, because any standard mech will do.
The interface PCB only has three TTL chips and a few capacitors and
maybe a transistor (can't see the third leg). It's probably not _quite_
the same as as the board from a 3.5" drive, because the A1020
isn't recognized and mounted automatically. It has to be MOUNTed
manually, using an appropriate mountlist. (440K Amiga disks! WooHoo!)
It has the passthrough for daisychaining other drives, too.
There's really not much to it. Rigging up the appropriate cabling
between any old 5.25" mechanism and the innards of an A1010 would
probably work.
Note that there is no diskchange signal from the drive. You have to
remember to issue the diskchange command when swapping Amiga-formatted
5.25" disks, to avoid corruption. Not that this is likely to be a great
concern. :)
-- Mark
--
Doug Spence
ds_spenc(a)alcor.concordia.ca
http://alcor.concordia.ca/~ds_spenc/
4:08 p.m.
I have a 1020 and a C=1571, the cases are similar, but not identical.
My Amiga and C= stuff is still packed from my mov3e last month, but when
I get it out, i'll check it internally and report back if anyone is
still intrested.
James
Doug Spence wrote:
On 19-May-99, Mark wrote:
--
ICQ 2286850
Home Page http://home.texoma.net/~jrice
Classic Comp Page at http://home.texoma.net/~jrice/classiccomp.html
Robotics Page at ttp://home.texoma.net/~jrice/hobbies.html
All pages under construction!
Hi,
Hail!
Talking of the Amiga 1020 drive... I would like to
get hold of one of
these. Am I correct in thinking that they were not sold in the UK
(where I live)?
I don't know the answer to that. I don't know of that many A1020 owners
in North America, either. :) It was basically only used for reading
MS-DOS format 360K disks with Transformer, but there was also commercial
software that used it to read/write C=1541 disks. I think one of the
RKMs mentions software for reading/writing Apple ][ disks, too, and I'd
like to locate that. (I can only _read_ Apple disks ATM).
If I can't find an A1020 (or compatible
replacement, if any were made),
I may try and rig up my own drive.
There were third party Amiga-compatible 5.25" drives made. Picking up a
random magazine (Amiga Format, January 1991) and leafing through, I
found an ad for the Cumana CAX1000S on p.165. Not really compatible,
though, as the Cumana drive has a high density mechanism in it. I think
there were others as well, also with high density mechanisms.
The Cumana drive also doesn't seem to have its own power supply. The
A1020 has its own internal supply, instead of drawing off the Amiga's
floppy port.
I've never met a C=1571 in real life, but I think the A1020 uses the
same case as that drive. Just look for a 1571 with a checkmark logo on
it. :)
To this end, can some kind person who owns an
A1020 open it up, and
tell me what type/model the drive mechanism is, and also describe
any interface PCB that's inside?
The mech is an ALPS DS/DD, but I don't know the exact model number.
Doesn't matter, because any standard mech will do.
The interface PCB only has three TTL chips and a few capacitors and
maybe a transistor (can't see the third leg). It's probably not _quite_
the same as as the board from a 3.5" drive, because the A1020
isn't recognized and mounted automatically. It has to be MOUNTed
manually, using an appropriate mountlist. (440K Amiga disks! WooHoo!)
It has the passthrough for daisychaining other drives, too.
There's really not much to it. Rigging up the appropriate cabling
between any old 5.25" mechanism and the innards of an A1010 would
probably work.
Note that there is no diskchange signal from the drive. You have to
remember to issue the diskchange command when swapping Amiga-formatted
5.25" disks, to avoid corruption. Not that this is likely to be a great
concern. :)
-- Mark
--
Doug Spence
ds_spenc(a)alcor.concordia.ca
http://alcor.concordia.ca/~ds_spenc/
9100
days inactive
9118
days old
4 comments
5 participants
participants (5)
-
ckaiser＠oa.ptloma.edu -
ds_spenc＠alcor.concordia.ca -
jfoust＠threedee.com -
jrice＠texoma.net -
mark_k＠iname.com