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High/Low Impedance Converters
High/low impedance converters adapt low-impedance military helmets and headsets to match higher-impedance general aviation radios.
They are useful when using a military helmet or headset in a general aviation aircraft.
Communications converters adapt both the microphone and earphone from military to the requirements of general aviation radios.
Microphone amplifiers adapt military M-87 and M-101 microphones to the requirements of general aviation radios.