Date   : Mon, 31 May 2004 13:08:22 +0200
From   : John Kortink <kortink@...>
Subject: Re: [Electron] sound wave

On Mon, 31 May 2004 11:52:32 +0100, Mike Tomlinson
<mike@...> wrote:

>In article <1085220280019553@...>, Thomas Harte
><thomasharte@...> writes
>
>>One of the programmers who was big back then had told me that they 
>>pretty much all used 
>>piezoelectric speakers back then, and I know for sure the Spectrum and
IBM PC 
>>did.
>
>The Spectrum did, but genuine IBM PCs (and most clones) used real
>moving-magnet speakers.

Never seen a moving magnet speaker. What's that ?

I'm used to the moving coil variety when it comes to ordinary
speakers. ;-)


John Kortink

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