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Date: 8 May 2003 08:00:42 GMT
Subject: Re: Okay, why?

Someone who looks an awful lot like Copernicus <> wrote: > On 6 May 2003 17:36:47 GMT, wrote: >>Well, vacuum servos were part of Saab back as far as at least 1971, so > Vacuum servo is erroneous. A servo is an electric device in which two > coils each containing a permeable slug are in the same electrical > circuit. If one slug is moved by an external force (say a hand > operated positioned) the other slug will move to correspond with that > repositioning. That would be a reasonable definition for an electrical servo, I suppose. Not all servos use electricity as the means of moving one object in relation to another. The same discussion could be had for switches, motors, and so on, unless one wants to disregard pneumatics entirely.

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