Microphone for ?

[rv12p2000]

Hello

in Museum für historische Wehrtechnik

You have this microphone pic:

http://www.wehrtechnikmuseum.de/Noch...t/Mikrofon.jpg


Intended microphone has what use: Speech or noise detection on a ground ?


regards Rv12p2000

[Val]

I think this is microphone from Zünder-Horchgerät 41.