Crewmen Helmet AT DH-132(FRP)

Supplies of the equipment stopped

SPECIFICATION

ELECTRICAL CHARACTERISTIC

HEADSET - MICROPHONE KIT MK-1697/G (5965-00-313-8958)

Microphone M-138/G , dynamic (5965-00-937-1851)

• Impedance : 150 +-15 Ohm at 1000 Hz
• Sensitivity: More than - 56 dB at 1000 Hz
• Frequency : 0.3 ~ 3.5 KHz
• Humidity: Max 95%

Earphone M-139/G , (5965-00-076-8026) SM-B-933867

• Impedance : 1000 Ohm at 1000 Hz (as 2 ea is connected parallel circuit, total impedance is 500 Ohm)
• Sensitivity : 100 ~ 3500 Hz
• U-161 connector is available.
•  Inner Liner Size : medium (standard), Large
•  Set Weight (Approximately) : 1.6 Kg
•  Shell : Standard (FRP)