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XC—76型井筒电话,是由开滦煤研所与江苏兴化无线电厂共同研制的,根据煤矿特点,将一般收发讯机进行特殊的改进,作为煤矿竖井井筒作业的通讯工具。因使用场合的不同要求,分A、B型两种。A型是袖珍式,为煤矿用安全火花型,具有防水防潮性能,设有1米长软天线,外形尺寸为80×54×156毫米,重量为1.05公斤,随机附有塑料护套及背带,可随身携带,供井筒或盲井场合作业工人、井口信号工和井下绞车房司机使用。B型是固定式,交流供电,设有静噪电路,附有1.14米
XC-76 wellbore telephone is jointly developed by Kailuan Coal Research Institute and Jiangsu Xinghua Radio Factory. According to the characteristics of coal mines, the general transceiver will be specially improved to be used as communication tool for coal mine shaft and shaft operation. Due to the different requirements of the occasion, points A, B type two. A type is a pocket type, for the coal mine with safe spark, with moisture and moisture resistance, with 1 m long soft antenna, dimensions of 80 × 54 × 156 mm, weight of 1.05 kg, accompanied by a plastic jacket and strap, Can be carried around for workers in wellbore or blind places, wellhead signal workers and winch winch drivers. Type B is fixed, AC power supply, with squelch circuit, with 1.14 meters