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Anyone know what this is?

Discussion in 'General Electronics Discussion' started by Terry01, Aug 13, 2017.

  1. Terry01

    Terry01

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    Jul 5, 2017
    I got 6 of these in a mixed lot and wondered if anyone knows what they are? Sorry I don't have better photos. The writing on the sticker is "U44/47" at one end and "U48/42" the other. The are about 12" long. When I take the red and black caps of the end it is like a clear cable with a black spot in the centre with the black insulation surrounding it.
    Thanks

    IMG_20170813_143121.jpg IMG_20170813_143133.jpg IMG_20170813_143052.jpg
     
  2. Alec_t

    Alec_t

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    Jul 7, 2015
    Optical fibre?
     
  3. Minder

    Minder

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    Apr 24, 2015
    Same here, the caps are just pre-install protection.
    M.
     
  4. Terry01

    Terry01

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    Jul 5, 2017
    Thanks very much. I thought small whip type antenna at first but when I took the caps off the ends they are very clearly not. Optic fibre was my 2nd thought too but really not clued up enough to be 100% sure. I thought I'd ask here and am sure you guys are correct. Do you have any idea what such short lengths would be used for?
     
  5. Minder

    Minder

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    Apr 24, 2015
    The Jaguar XJS I once restored had them, can't quite remember the use though.
    That was some years ago.
    M.
     
  6. Terry01

    Terry01

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    Jul 5, 2017
    Cool! That was very close to the last thing I'd have expected them to be used for. Just shows...you really do learn something new each day!
    Thanks.
     
  7. Externet

    Externet

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    Aug 24, 2009
    Minder : they are used for instrument panel illumination, blinkers/brake/rear lights burnt bulb monitoring, in other vehicle brands. They called those ´ĺight pipes´ My '79 GM vehicled surprised me having those.
     
  8. Minder

    Minder

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    Apr 24, 2015
    Yeah.. I do recall that now.
    M.
     
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