Old Pager Antenna

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Joined
Nov 30, 2015
Messages
29
I bought a crate of 1993 pager PCMCIA cards. Each one has:
1 gold plated battery holder 0.56 sq. inch.
1.65 oz of pcb,
1 ceramic clock chip.
I bought 2500 of them for a penny a piece. I am feeling pretty good about the purchase so far.

Here is my question: Glued to the top of the case is a round antenna. It has oxidized into a colorful little spot about 3/4" in diameter with a dull gold looking ring with the blue green oxide in the middle. Before I throw them into the tin scrap pile, I wondered if anyone knows if there are PM's worth saving/recovering. I really only have experience with Au and Ag so far, but I do like a challenge.

ant1.jpg

Here are a few to give scale

IMG_0074.jpg

Thank you all for your input.
 
Looks like a piezoelectric speaker. Probably a brass sheet with a quartz disc and silver plated top (bluish oxidation).

A drop of nitric acid and some salt will tell you all you need to know.

Göran
 
Matthewnut said:
Do you still have it? I've lost all of it. I was looking for it as well.
What did you lose?

Maybe you just are a spammer that will come back and add a signature with spam links. If so then it will be removed and the links reported to google spam... just saying.

Göran
 
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