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From: "Ken Taylor"
Subject: Re: Hard drive motor question
Date: Thu, 17 Oct 2002 15:31:33 +1300
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Take a look here:
"Jim" wrote in message news:31pr9.4557$46.3661@fe01...
> How can I get a motor salvaged from a hard drive to run? All the ones I
> have salvaged so far are from 3 inch drives and all have 4 connections
> go to the motor, one of which is a ground. I haven't been able to tell
> from tracing things out on the PCB except that I now know that the motor
> does not run from the 5 volt or 12 volt power supply directly.
> That's all I want to do is get the motor turning at something close to
> original speed.
> I guess that there must be some fast switching going on amoung the 3
> remaining connections to the motor, and if this is so, is there some way
> duplicate this that isn't too complicated?? I made a wrong assumption
> since a hard drive motor is always turning when the computer power is on,
> that it was running directly from the power supply. So now I need some
> in figuring things out.
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