5" aluminum tube/box located in left front hood

[mpieretti]

I swapped out my battery earlier tonight for the biggest Bosch battery I could fit.
In order to get it in I had to unbolt a 5" aluminum tube ( size of a sunglass case) from next to the washer fluid pump in the left front of my hood.

What the heck is this thing?
It had 2 wire leads, only one connected and was empty other than for a piece of cork and a few metal bits.

Ballast of some sort?
Some type of auxiliary battery box?

The car is 1975 911s targa.

I don't see it in any parts diagram and would like to just remove it as it seems unnecessary.

Thanks!!!

[kach22i]

A half dozen photos would help, heck just one might do it.

[mpieretti]

If no one can tell me blindfolded I will post a pic....
But my guess is that someone knows what this thing is.

[kach22i]

It's gotta be the "Flux Capacitor".

[mpieretti]

Got me, that's obviously it!!!

[mreid]

A/C condenser fan.

[cpa]

How about a motion sensor for an old alarm installation.