Resistors.?

Question

Hi there,

I'm trying to learn about electronics, mainly for soldering purposes and I can't seem to understand the resistors colour code system, on this webpage here http://www.doctronics.co.uk/resistor.htm it states that this is the numbering system,

Number Colour
0 black
1 brown
2 red
3 orange
4 yellow
5 green
6 blue
7 violet
8 grey
9 white

you supposedly work out resistors like this, let's say you have a resistor with brown, black and red colour bands it would go, 1 for brown, 0 for black, and then add two noughts for the red (it's a multiplier), so you'd be left with 1000...correct? ..so then you take off the noughts again, and you'd have a 10K resistor, however...in one of my soldering kits it has a brown, black and red resistor yet it's referred to as a 1K resistor, instead of 10K like some different resistors in my book, does that mean that the manual is wrong? or the 0 isn't counted as a number? I can't seem to understand

Answer 1

search google for "resistor color code program" and try the first result you get, this program should do it all for you, it made it really easy for me

Answer 2

About the only really neat thing that I ever saw at radio Shack was a three color code resistor wheel.
You just had to look in through the little windows , match up the rite colors by turning the wheels and read off the value.

http://www.geocities.com/aliciainelpaso/schematics/resistor-color-code.gif

http://www.swdxer.co.nr/

Answer 3

The resistor will have 4 bands or stripes on it.Starting from extreme left first 2 bands give the number.the tird band is a multiplier of tens.the fourth one is known as tolrerance.If it is gold + or - 5% tolerace silver + or - 10% tolerance.If there is no band 20% tolerance.let us take ur example.
10 x10^2+20%of(10 x10^2)
or 10x10^2-20% of(10 x10^2)

Answer 4

Good answers already here.
How about a different colour code index to put in your pocket?

Use the link included.

When I started out it was customary to give one of these to the prospective tech...it is interesting that soldering brought you to the study of electronics...

Good Luck!

Answer 5

Find a complete explanation here http://en.wikipedia.org/wiki/Resistor_color_code

Brown, black red is 1K 1 0 00
Brown black orange is 10K 1 0 000
Brown black yellow is 100K 1 0 0000

Answer 6

K means 3 zeroes