Re: Resistor Colour Codes
From: Kitchen Man (nannerbac_at_yahoo.com)
Date: 01/21/05
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Date: Fri, 21 Jan 2005 10:09:38 -0700
On Thu, 20 Jan 2005 17:38:04 +0000 (UTC), "Richard Harris"
<richard_harris_2@hotmail.com> wrote:
>Hi,
> I have a resistor that is showing up as 56.0 Ohms on a multimeter but the
>colour code seems to say 560 Ohms.
>
>Green Blue Black Gold Brown
>5 6 0 ?? 1% Tolerance
I think of the third color as "number of zeroes." For instance,
Yellow-Violet-Red is 4-7 plus two zeroes, or 4.7K. Other posters are
correct that the third band is a power of 10 multiplier, but for ease of
remembering and calculation, "number of zeroes to add" works for me.
>What does the gold mean?
The tolerance. I think gold is 1%. There are other color bands that
can creep in in different situations. For instance, a gold third band
means multiply by 10^-1, or one-tenth, which would make your resistor
5.6 Ohms if the third band were gold, not black.
>Thanks for ya time guys.
>
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