no HD Disks in 1541/71 and hub rings

From: Pete Turnbull <pete_at_dunnington.u-net.com>
Date: Thu May 31 02:10:31 2001

On May 30, 20:47, Larry Anderson wrote:

> As for hub rings I heard they were required (for gripping purposes) for
> the older Apple drives (the metal boxy ones), maybe even for the 4040s,
> but I know without them on those old lever drives, you could sure mangle
> a non-protected center hole clamping down on one.

Yes, the main reason for hub rings was to minimise the damage when you did
that :-) Our Apple Disk ][s and Commodore 4040/8050 drives never needed
disks with hub rings when they were new, and the ones I have now still
don't.

> Anyone have a hub-ring kit still? (reminds me of today's CD stompers)

Alas, no. I remember them, though.

> > As others have said, you need disks intended for single-density or
double
> > density, not HD. I've also met one 1541 owner who swears that disks
> > without hub rings won't work in his drive (and never did) because the
> > mechanism doesn't grip them tightly enough (though I'm fairly sure
that's
> > just due to a soft spring or a missing screw on the frame somewhere).

-- 
Pete						Peter Turnbull
						Network Manager
						University of York
Received on Thu May 31 2001 - 02:10:31 BST

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