A component which determines the mode of operation of a intercommunication set.
Classification: Electric sound amplifier sets
NSN 5950-00-658-5779
NSN 5945-01-174-6380
NSN 5999-01-283-6189
NSN 5925-00-869-1630
NSN 6135-01-067-8331
NSN 6150-00-683-0621
NSN 5905-01-486-6167
NSN 4140-01-540-3201
NSN 2925-01-342-1712
NSN 5935-01-442-3521
NSN 5930-01-286-5853
NSN 6105-01-465-6505