On Thursday, 8 September 2016 18:45:56 UTC+1, ARW wrote:
I know that it is a 30mm by 4mm glass capusle with some electronics inside
it.

But other than that I have no idea.

http://wiki.diyfaq.org.uk/images/2/2f/Wtf1.jpg


That is a MW AM antenna on a ferrite rod.
Probably off an old pocket transistor radio.

http://thumbs2.ebaystatic.com/d/l225...yUDOQfzeEQ.jpg