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Unknown metallic boxes

Pelletier

Jan 2, 2012
5
Joined
Jan 2, 2012
Messages
5
Hi!

I found these in a grab bag of electronics parts and I have no idea what they are.

Written on the back:
K 1740
FN 052
TAIWAN

Do you know what it is?

Thanks!
 

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OLIVE2222

Oct 2, 2011
690
Joined
Oct 2, 2011
Messages
690
Hi,

With such opening at the top and 3 contacts I will say electret microphone.

Olivier
 

KMoffett

Jan 21, 2009
723
Joined
Jan 21, 2009
Messages
723
They are speakers used in the old Motorola Pageboy II pagers. I used to repair them...pagers...not speakers. ;) Sounded like this:


Ken
 
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