论文部分内容阅读
我制成了一个集成电路助听器。该助听器线路简单,输出功率大,声音宏亮,装配调试也很容易。一个6 V迭层电池可以使用半年以上。整机原理请见下图: 图中采用CRZ2-9型驻极话筒,若用三个输出接点的驻极话筒,可将话筒场效应管的源极接外壳,漏极作信号输出端。集成电路SL34是具有三极电压放
I made an integrated circuit hearing aid. The hearing aid line is simple, the output power, loud and clear, easy to assemble and debug. A 6 V laminated battery can be used for more than six months. Machine principle, see the figure below: The figure uses the CRZ2-9 type of electret microphone, if the three output contacts electret microphone, the microphone FET can be connected to the source of the shell, the drain signal output. Integrated circuit SL34 is a three-pole voltage amplifier