2207 Clay Street
Elkhart, IN 46517
CAGE Code: 59369
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Features and Info:
The H-143/AIC, NSN 5965-01-094-6602, Dynamic Earphone is a 19 ohm impedance moving coil type earphone designed for use in a headband type headset or specific flight helmets, it also has ground crew support applications. The intended use is to provide audio communications under high noise conditions found in military, civilian and general aviation environments.
The earphone is designed and constructed from quality durable high strength nylon and other type polymer materials as well as corrosion resistant metals meeting or exceeding the environmental, durability and interchangeability requirements of MIL-PRF-25670.
Baseline Performance Characteristics:
Color: Lusterless Black
Weight: Approximately 1.35 ounces max.
Frequency Response Range: 100 to 5000Hz
Sensitivity at Ground Level: 102dB min. @ 1mW rms input at 1kHz applied to earphone terminals
Temperature Range: As per the requirements of MIL-PRF-25670
Distortion: 5% max.
Stray Magnetic Field: 5 degree at a measured distance of 12 inches
Marking: As per the requirements of MIL-PRF-25670
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