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KOREA TECHNO CO.   MILITARY EQUIPMENT   MOLD   CONTACT US

MILITARY EQUIPMENT -  FIELD TELEPHONE SET -  RADIO SET (PRC-77 st.) -  FIELD SWITCHBOARD SET -  CREWMEN HELMET -  BALLISTIC BODY ARMOUR -  HANDSET -  HEADSET -  ANTENNA SET -  LOUDSPEAKER -  CORD & CABLE ASSY -  CONNECTORS -  MINE WIRE -  OTHER ELEMENTS MOLD -  Vacuum Cleaner Filters Molds -  Dye Casting Molds -  Precision Casting Molds T E L :  82-32-670-7410 F A X :  82-32-670-7413 Email :  sales@koreatechno.com ktsbshim@gmail.com  Home > PRODUCTS > MILITARY EQUIPMENT > OTHER ELEMENTS > KT-M138/G (M-138/G st.) Microphone     KT-M139/G (M-139/G st.) Earphone SPECIFICATION   Model No. M-139-1 M-139-2 M-139-3 M-139-4 Military Type H-143/AIC N/A Type Dynamic Sensitivity 105dB(1KHz) 1MWRMS 105dB +-3dB(1KHz) 105dB +-3dB(1KHz)< 105dB(1KHz)< FrequencyRange 100 ~ 5,500Hz 300 ~ 4,000Hz 100 ~ 5,000Hz 100 ~ 3,500Hz Impedance 19 ohm 300 ohm 600 ohm 1,000 ohm Termination Screw(2-56unc) plug hole dia 2.2pie Dimensions (mm) 50.4 pie x 13.2 Temperature range -55 ℃ ~ 71℃ -120 ℉ ~ 150 ℉ -55℃ ~ 71℃ -120 ℉ ~ 150 ℉ Peril Spec MIL-E-25670 N/A MIL-E-25670 MIL-H-49161 FSN 5965-615-0104 N/A N/A 5965-135-0506 Jump to: Select a menuPRODUCTS|--MILITARY EQUIPMENT|   |--FIELD TELEPHONE SET|   |--RADIO SET (PRC-77 st.)|   |--FIELD SWITCHBOARD SET|   |--CREWMEN HELMET|   |--BALLISTIC BODY ARMOUR|   |--HANDSET|   |--HEADSET|   |--ANTENNA SET|   |--LOUDSPEAKER|   |--CORD & CABLE ASSY|   |--CONNECTORS|   |--MINE WIRE|   |--OTHER ELEMENTS|--MOLD|   |--Vacuum Cleaner Filters Molds|   |--Dye Casting Molds|   |--Precision Casting Molds

904, 261, Doyak-ro, Wonmi-gu, Bucheon-si, Gyeonggi-do, Korea Tel : 82-32-670-7411 Fax : 82-32-670-7413 Copyright ⓒ 2009 KT KOREA TECHNO CO. All rights reserved. / E-mail : sales@koreatechno.com Supported by ONTOIN