Please Ident this contraption!

And I was trying to be serious!

 

Hey! I'm as serious as a heart attack!

quoting from your first link:

Left: A US Army sound locator for a mobile searchlight unit: early 1940s.

The locator and control station were connected by cables to the searchlight and a mobile electricity generator.

Note there are three horns and not four, the one in the middle here being shared between the horizontal and vertical planes.

These locators continued to be deployed when radar sets were introduced, in the hope of convincing the Germans that the US searchlight battalions were still dependant on acoustic location.

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..and...

Left: A US Army sound locator in use: 1943.

This photograph was dated January 1943, and was presented by the American media as being current equipment. This was another piece of misinformation as radar sets were already in widespread use for searchlight control at that date.

Note the large diameter acoustic tubes leading to the operator's headset.



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See..... I can be serious.

-whatever​

-Lou​

 

Nice try!