Five and quarter drives

From: Dwight K. Elvey <>
Date: Fri Feb 11 18:19:11 2005

 I see you are talking 720K versus 1.2M. I would guess
the there is a difference in rotation that would distinguish
the two. The 720K should be the same rate as the 360K.
I would guess both number of steps and rotation would
determine the difference. Luckily, there were not that
many 720K drives out there.

>From: "Steve Thatcher" <>
>the number of tracks is not going to distinguish between 360K and 1.2meg.
>Double density 40 track drives will be 360K (double sided) or 180K (single
>sided). An 80 track drive can be either a double density 720K drive (double
>sided - I don't know of any single sided 80 track drives) or a high density
>1.2meg drive.
>best regards, Steve Thatcher
>At 06:16 PM 02/11/2005, Dwight K. Elvey wrote:
>> >From: "Parker, Kevin" <>
>> >
>> >
>> >Can someone refresh my memory please whether it was possible to visually
>> >tell 360K and 1.2MB 5 1/4 inch floppy drives apart (the drive that is,
>> >not the media).
>> >
>> >
>> >TIA!!!!
>> >
>> >++++++++++
>> >Kevin Parker
>> Put the drive on a drive tester and sequence it out
>>40 tracks. If it only goes half way, it is an 80 track.
Received on Fri Feb 11 2005 - 18:19:11 GMT

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