resistor color code damaged URGENT

Discussion in 'General Electronics Chat' started by ajay_chhadwa, Oct 7, 2012.

  1. ajay_chhadwa

    Thread Starter New Member

    Oct 7, 2012
    2
    0
    i have resistor which is burnt at both the ends
    so its color code its damaged
    but i can see three of them and not only the last one
    they are golden red blue
    how can i find the last code
    or else if i can fix any other resistor
    plz help Urgent
     
  2. panic mode

    Senior Member

    Oct 10, 2011
    1,320
    304
    you listed them in reverse:

    unknown (first digit)
    blue = 6 (second digit)
    red = 2 (number of zeroes)
    golden = 5% tolerance


    you have the last digit 6 so it is quite possible that one before it was 5 (green) because that would be standard value. note, common values are
    1
    1.2
    1.5
    1.8
    2.2
    2.7
    3.3
    4.7
    5.6
    6.8
    8.2
    9.1
    10 etc

    so what you are likely dealing with is
    5600 Ohm
     
  3. ajay_chhadwa

    Thread Starter New Member

    Oct 7, 2012
    2
    0
    thanks buddy
    so finally it would be green blue red golden
    and what if these value dont match
     
  4. panic mode

    Senior Member

    Oct 10, 2011
    1,320
    304
    well good luck....

    if resistor is burned, there is a chance that even colors you did identify are changed. if you are sure they are ok, then only first one is missing. in that case you could have value between 1600 and 9600 Ohm. however standard values that end with 6 are not many. E24 also covers 5% range and has few more values: 1600 , 3600 , 5600.

    to really tell what value is correct you will need schematic. if you don't have it, you may try closer describing circuit (reverse engineer parts around it) and we may be able to provide better educated guess. untill then, this is all you can get....
     
  5. panic mode

    Senior Member

    Oct 10, 2011
    1,320
    304
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