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瑞士纳格拉(NAGRA)4.2型录音机有供动圈式传声器及电容式传声器使用的两种前置放大器。我们使用的是供动圈式传声器用的A15型传声器前置放大器,它采用变压器中心接地的平衡输入方式,如图1所示。这时,能否将电容传声器直接与NAGRA4.2型录音机传声器输入端连接呢? 电容式传声器除了在换能方式上与动圈式
The NAGRA 4.2 recorder has two preamplifiers for use with moving-coil microphones and condenser microphones. We are using the A15 microphone preamplifier for moving-coil microphones, which uses a balanced input to the center of the transformer, as shown in Figure 1. At this time, can the condenser microphone directly with the NAGRA4.2 recorder microphone input connection? Capacitive microphone in addition to the transducer with the moving coil