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Re: Apple II drives and automatic monitor degaussing



On Feb 3, 3:52 pm, "Michael J. Mahon" <mjma...@aol.com> wrote:
<< Demagnetizing disk heads is not necessary, so there is no real
benefit. >>

You know, I never thought to ask before, but why do they not require
demag-ing just as tape heads do?


<< The real issue is interference with disk reading from the stray
fields from the monitor deflection yoke and sweep circuits....
Intervening magnetic shielding is also a major factor.>>

** The monitor internals are fully enclosed in a grounded metal
cage... and the drives themselves are somewhat shielded internally
with cage-like parts.   Do you think these shields help with the
fields you are talking about?

** The other thing I'm thinking of doing is just disconnecting the
internal deguass coil as I know how to degauss manually, and I've
never really had much need to degauss anyway.

~ J