TYPE 4192-L-001测试唛克风 BK2690A前置放大器 BK4192 TYPE 4192-L-001 ?-INCH PRESSURE-FIELD MICROPHONE WITH TYPE 2669-L PREAMPLIFIER, 3 HZ TO 20 KHZ, 200 V POLARIZATION Designed for high-precision coupler measurements or ANSI noise measurements. The unit also contains TEDS, which means that information about the serial number, type and sensitivity is stored within it. 专业销售/收购/维修、租赁二手仪器设备