Author Topic: Teamdrive  (Read 2701 times)

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Offline TFM

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Teamdrive
« on: 19:59, 29 October 11 »
Hi there,
 
Does have anybody here a Teamdrive:
 
http://www.ebay.de/itm/110762524346?ssPageName=STRK:MEDWX:IT
 
 
Do you use it like a regular B-drive or does it have something special?
 
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Offline Bryce

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Re: Teamdrive
« Reply #1 on: 20:51, 29 October 11 »
Looks like a standard external 5.25 drive. Nothing special.

Bryce.

Offline TFM

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Re: Teamdrive
« Reply #2 on: 20:56, 29 October 11 »
Looks like a standard external 5.25 drive. Nothing special.

Bryce.

Well, it offers 820 KB... (So maybe a DOS with 82 track support, or something else!)
 
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Offline Bryce

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Re: Teamdrive
« Reply #3 on: 21:48, 29 October 11 »
Or maybe that only works when connected to a PC?

Bryce.

Offline TFM

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Re: Teamdrive
« Reply #4 on: 20:05, 31 October 11 »
Or maybe that only works when connected to a PC?

Bryce.

No, it was definitely inteded to be used at the CPC with 820 KB (see advertisments).
 
However, it doesn't matter if the drive is connected to a CPC or PC, because the connected computer will not alter the floppy-disc-drive-station itself in any way.
 
Further, a PC would use it with 720 KB DOS format most likely. Or 360 KB DOS format, when selected as 5.25". But not 820 KB.
 
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Offline MacDeath

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Re: Teamdrive
« Reply #5 on: 15:15, 01 November 11 »
5"1/4... I have fond memory from tyhose on my first PC...

the fun was that you could transport the disks on any book at school.


But is this stil practicle nowadays ?
I mean can you still find new disks for those ?

Offline OCT

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Re: 5.25"
« Reply #6 on: 23:46, 01 November 11 »
5"1/4... I have fond memory from tyhose on my first PC...
the fun was that you could transport the disks on any book at school.
There was at least one case where prosecutors punched and filed a few of them with their papers... there goes the evidence  ;D usually, but they were lucky to be in a region that still used a smaller size of top-left punch units backwards-compatible to the 19th century (at a minimum), just about sparing the inner magnetic disc...

Quote
But is this stil practicle nowadays ?
I mean can you still find new disks for those ?
The hard part is finding 5.25" drives that still work, and mainboards that still do support more than one drive - many manufacturers such as Fujitsu-Siemens or HP seem to have (more or less silently) reduced the mainboard connector wiring for floppy ports to just one unit (sometimes in spite of a twisted cable looking like it was for 2), even though the controllers could often handle the standard 2 drives, or even up to 4.
« Last Edit: 23:49, 01 November 11 by OCT »

Offline TFM

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Re: Teamdrive
« Reply #7 on: 00:50, 02 November 11 »
Can you connect two drives at that single cable then? (At least?)
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Offline Gryzor

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Re: Teamdrive
« Reply #8 on: 18:07, 03 November 11 »
Is it really that hard to find working 5.25" drives? The world is full of these beasts!

Offline OCT

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Re: 3.5"+5.25" on present-day PCs
« Reply #9 on: 12:53, 06 November 11 »
Can you connect two drives at that single cable then? (At least?)
Well, the trouble is that even though SMSC (maker of the common I/O chipsets) have licensed ye olde 765 controller core which does allow MOTOR_ON and DS for two drives, many manufacturers just don't carry the _1 pins to the mainboard's FLOPPY ("Shugart bus") connector.
I.e. the cables (and often even BIOS descriptions) look like they were for two drives but only one will work on them (proven by hours of angry attempts in every corner of the globe).
Using Linux, you may override the BIOS by specifying an option of e.g. " floppy.floppy=1,4,cmos" to the kernel, but this will only make /dev/fd1 time out with misleading error messages after up to an hour if the mainboard pin header isn't properly wired to the SMSC controller for a second drive.
With ace fine-pitch soldering skills on an LPC SMD (a precision task for watchmakers or neurosurgeons), one might be able to complete the connections, but the respective pins might also have been reconfigured as GPIO so one cannot be sure whether the I/O is able to work correctly in the respective circuit at all.
« Last Edit: 12:54, 06 November 11 by OCT »

Offline OCT

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Re: 5.25" drives
« Reply #10 on: 13:06, 06 November 11 »
Is it really that hard to find working 5.25" drives? The world is full of these beasts!
Yes, but (oblig Universal Soldier quote) after just a few years of service at the most (much worse than for 3-3.5") regrettably:  :o
Quote
God damn it the whole fucking platoon's dropping like flies!
And not all of those still around and working can actually be wired to work on a CPC (the knowledge how to make them double-step seems largely lost already).

Offline TFM

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Re: Teamdrive
« Reply #11 on: 20:37, 06 November 11 »
@OCT: Thank's for your detailed comments :)
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