Radial Inductors

Discussion in 'The Projects Forum' started by MMH, Mar 12, 2013.

  1. MMH

    Thread Starter Member

    Feb 8, 2013
    143
    4
    Hello there everybody!!

    I have a radial inductor whose color codes I cannot read. Reading from left to right-Black(big dot)-Black(small dot)-gold(small dot)-Gold(big dot). So what is its inductance??Can you suggest an online calculator for this??
     
  2. thatoneguy

    AAC Fanatic!

    Feb 19, 2009
    6,357
    718
    Do you have a photo?

    Are some on the top of the case and some on the side?

    Black black is 00 with a divide by 10 and 5% tolerance. Is one brown rather than black? :confused:

    Dot code, RF

    Color Code, banded axial
     
  3. MMH

    Thread Starter Member

    Feb 8, 2013
    143
    4
    Thanks for answering!!

    The big dots i mentioned are in the sides. The small dots are in top. Sorry, the small dot is violet and yellow, not black and gold.
     
    Last edited: Mar 12, 2013
  4. THE_RB

    AAC Fanatic!

    Feb 11, 2008
    5,435
    1,305
    Violet and yellow is a standard pair for "47" and if the only other dot is black, I would assume that is the multiplier, so you have 47 + 0 tens or 47uH.
     
    MMH likes this.
  5. #12

    Expert

    Nov 30, 2010
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