Re: Amusing problem about DC polarity
- From: martin griffith <mart_in_medina@xxxxxxxxxxx>
- Date: Fri, 09 Jun 2006 14:51:40 +0200
On 9 Jun 2006 00:29:41 -0700, in sci.electronics.design "siliconmike"
<siliconmike@xxxxxxxxx> wrote:
Imagine a black plastic box that takes in DC power but has no polarity
markings on its power socket.
The problem is to experimentally determine the correct DC polarity
without opening the box and without letting the box die.
How close can we come?
I'll ask the cat
martin
.
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