Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!ncar!tank!mimsy!mojo!sukes
From: sukes@eng.umd.edu (Tasuki Hirata)
Newsgroups: comp.sys.mac.hardware
Subject: Re: Drilling holes in DS/DD -> DS/HD
Message-ID: <1989Dec14.174410.29982@eng.umd.edu>
Date: 14 Dec 89 17:44:10 GMT
References: <5678@ncar.ucar.edu> <3308@hub.UUCP>
Sender: news@eng.umd.edu (The News System)
Reply-To: sukes@eng.umd.edu (Tasuki Hirata)
Organization: Merriversity of Uniland, College Purgatory
Lines: 20

In article <3308@hub.UUCP> 6600pete@hub.UUCP writes:
>From article <5678@ncar.ucar.edu>, by schabtac@porter.uucp (Adam Schabtach):
>> I knew a guy who went one step further, and put a switch on the front of his
>> disk drive that allowed him to defeat the microswitch inside that "felt"
>> the write-protect notch.
>> ...perform a similar modification on a newfangled 3.5" drive.
>
>I believe the FDHD HD notch is read by a beam of light. So messing with it
>might be an order of magnitude more difficult.


The FDHD does not detect the HD notch with a beam of light.  It detects
the notch by a mechanical switch.

FYI: The write protect and disk presence is also done with a
mechanical switch.

--
/ Tasuki Hirata (sukes@eng.umd.edu) | Intel 80386:                  /
/ UUCP: uunet!eng.umd.edu!sukes     | Power Tool for the Power Fool /