Western electric caps

Discussion in 'General Electronics Chat' started by Migueld, Jan 5, 2014.

  1. Migueld

    Thread Starter New Member

    Jan 5, 2014
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    I have a number of western electric / AT&T capacitors that I need help identifying. For instance, one of them is clearly marked .1 2%, this is clear but it has no voltage rating only a part number 570bn, it is a yellow cap perhaps Polypropylene but not certain. I searched all over for western electric part number catalogs without any luck. Another example tantalum cap only marked 52 C and an electrolytic marked 10 NC83 (this is 10 uF but what else?). Anyway, just trying to find resources where I can decode these caps. Thanks for the help.
     
  2. GopherT

    AAC Fanatic!

    Nov 23, 2012
    6,058
    3,820
    These are all telephoney leftovers. AT&T had many unique part numbers and part codes. Unless you are trying to rebuild any vintage phones or switchboards, I think the best place for these is the dust bin. Buy a handful of new ones.
     
    Migueld likes this.
  3. Migueld

    Thread Starter New Member

    Jan 5, 2014
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    That's what I figured. Thank you!
     
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