Re: Reason for my electronics 101 question

Posted by KEB on October 26, 2006 at 19:00:29 from (72.19.170.5):

In Reply to: Re: Reason for my electronics 101 question posted by John T on October 26, 2006 at 11:27:32:

John, have you looked at one of those resistors? They're not very big, & would get really hot if they dissipated much power. Look at one in voltage regulator...not only is it a rather physically thin wire wound resistor, but it's typically mounted under the regulator, where it gets no air circulation whatsoever. I would think it would be cooking the regulator if it had to dissipate much energy.

The real solution here is to measure the current through the field winding, or at least measure the resistance of a field winding & estimate the current. I'd walk out to the shop and measure one, but we had a foot or so of snow here today & I don't feel like getting all bundled up.

Someone post measurements, OK. Otherwise, I'll check the next time I get out that way.

Thanks,

Keith

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