[Coco] 1000sx update
Derryl L. Cummings
d.cummings at comcast.net
Wed Apr 19 17:44:18 EDT 2006
Willard Goosey wrote:
> I'd like to thank everybody here on the coco list for helping me out
> with my Tandy 1000sx. I was able to get a SCSI and then MFM drives
> working on it. I was able to test my moldering pile of MFM drives!
> Only one of them refused to spin up. Not bad for a bunch of old
> ST-2xxs.
>
> Out of Tradition's sake, I went with a Microtek MFM controller and a
> ST-251 drive. Two partitions, a 32Meg and an 8Meg. DOS 3 bites. ;-)
>
> So, two questions:
> 1) Does anybody know what an ST-251 MLC-1 is? I suspect it's not
> MFM. ESDI maybe?
>
> 2) Does anybody have a N-1000, 3c501, or other 8-bit ethernet card
> they're not using? With AUI or UTP, please. I fear cheapernet! :-)
>
> Willard
Hi !,
I Googled this description of the ST-251 MC-1.
Derryl
S T 2 5 1 - M C L 1 SEAGATE
NO MORE PRODUCED Native| Translation
------+-----+-----+-----
Form 5.25"/HH Cylinders 820| | |
Capacity form/unform 42/ MB Heads 6| | |
Seek time / track 28.0/ ms Sector/track 17| | |
Controller MFM / ST506 Precompensation
Cache/Buffer KB Landing Zone
Data transfer rate 0.625 MB/S int Bytes/Sector 512
0.625 MB/S ext
Recording method MFM operating |
non-operating
-------------+--------------
Supply voltage 5/12 V Temperature *C |
Power: sleep W Humidity % |
standby W Altitude km |
idle W Shock g |
seek W Rotation RPM 3600
read/write W Acoustic dBA
spin-up W ECC Bit
MTBF h 70000
Warranty Month
Lift/Lock/Park YES Certificates
**********************************************************************
L A Y O U T
**********************************************************************
SEAGATE ST251-MLC 1 JUMPER SETTING
|
+------- +12V
| | +----- GND
| +--------+Jumper | | +--- GND
| |1ooooooo|Options | | | +- +5V
| |oooooooo| XXXXXXX |
+------------+--------+---------------------------+
XXXXXXXXXXXX XXXXXXXXXXXXXXXX
Data Connector Control connector
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