Maker Pro
Maker Pro

need help reading resistor values

Hi there, I am trying to repair a UPS i got from someone, problem is I cannot seem to calculate the value of these resistors using the colour codes? maybe im doing something wrong!

resistor.jpg
 

(*steve*)

¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd
Moderator
well, I was wondering if the last stripe was red or brown, and clearly Resqueline and I disagree on another band.

It's not clear on the image, but I imagine it will be clearer in real life :)
 
i believe its yellow white white red brown yes, thanks a lot! and thank you for the picture, will keep it for future reference :)
 

(*steve*)

¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd
Moderator
Sometimes the bands will make sense if read either way. The tolerance band is normally spaced a little further apart from the other bands.

In your image you can see it more clearly on some resistors than others.
 
R49 does seem to be what steve was reading, and R110 was what I was referring to. Good lighting and a magnifying glass are good tools to make sure one gets it right.
Under poor lighting brown can be mixed with red, and red can be mixed with orange. Green & blue are also at risk of being mixed up, and sometimes violet & blue/grey.
The tolerance band sometimes also seems to be a tad wider than the rest.
 
Top