[Milsurplus] What is Cylinder in Nems-Clarke Receiver

[Brooke Clarke]

Hi:

What is The Cylinder connected to J-104 with 4 white wires?
<http://imagehost.vendio.com/bin/viewimage.x/00000000/soldsold/nems36.JPG?vvid=23833559&allow_track_link=1&track=0237ee30df-50d16&sp=1>
In this photo there appears to be another cylindrical object to the left below 
the top surface of the chassis.
<http://imagehost.vendio.com/bin/viewimage.x/00000000/soldsold/nems32.JPG?vvid=23833559&allow_track_link=1&track=0237ee30df-50d16&sp=1>

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Have Fun,

Brooke Clarke, N6GCE
http://www.PRC68.com
http://www.precisionclock.com