Tandy 2000 Floppy Drive Replacement

Richard A. Cini rcini at optonline.net
Sat Oct 14 06:34:36 CDT 2006


I think that the Micromint SB180 used them, too.

I remember reading in a FAQ somewhere that certain 1.2mb drives can be
jumpered to work.

Rich
 
Rich Cini
Collector of classic computers
Lead engineer, Altair32 Emulator
Web site: http://highgate.comm.sfu.ca/~rcini/classiccmp/
Web site: http://www.altair32.com/ 

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-----Original Message-----
From: cctalk-bounces at classiccmp.org [mailto:cctalk-bounces at classiccmp.org]
On Behalf Of Geoff Reed
Sent: Saturday, October 14, 2006 2:36 AM
To: 'General Discussion: On-Topic and Off-Topic Posts'
Subject: RE: Tandy 2000 Floppy Drive Replacement

Some ALTOS systems did.

-----Original Message-----
From: cctalk-bounces at classiccmp.org [mailto:cctalk-bounces at classiccmp.org]
On Behalf Of Marvin Johnston
Sent: Friday, October 13, 2006 8:46 PM
To: ClassicCmp
Subject: Re: Tandy 2000 Floppy Drive Replacement


On Fri, 13 Oct 2006, Fred Ciscin wrote:

> The Tandy 2000 uses a 720K 5.25" drive.  DSDD 96tpi.
> Matsushita (Panasonic, Shugart, etc.) 465
> Tandon TM100-4
> Teac 55F
> etc.
> 
> SOME 1.2M drive could work.  They need to be jumpered to 300 RPM, "low
> density" recording current, etc.

First, what other machines used a 5 1/4" 720K drive? I've been looking
through
the stash, and so far I haven't found anything.

Second, IIRC the speed and "low density" recording current are set with
jumpers.
What is the etc.?

I might add that when connecting a standard 360K drive, the light comes on
and
stays on, and the drive continues to spin when a disk is inserted. This
gives me
the impression that there may be something wrong with the disk controller
for
the Tandy 2000. The cables for the 2000 are straight-thru, so I rejumpered
the
drive to the first drive (D0 of 0-3 or D1 of 1-4.) And yes, I checked and
double
checked to make sure that pin 1 on the motherboard matches pin 1 on the
drive!

Thanks!






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