Anyone know what this is?

[Terry01]

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

 

[Alec_t]

Optical fibre?

 

[Minder]

Same here, the caps are just pre-install protection.
M.

 

[Terry01]

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?

 

[Minder]

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

 

[Terry01]

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.

 

[Externet]

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.

 

[Minder]

Minder : they are used for instrument panel illumination, blinkers/brake/rear lights burnt bulb monitoring, .

Yeah.. I do recall that now.
M.