Zalud P, Indra M, Krekule I
Act Nerv Super (Praha). 1975 Sep;17(3):179-83.
A new approach to the construction of low frequency (1 Hz -- 20 kHz) active filters, based on the application of a pair of IC operational amplifiers forming a separate module and a plug-in unit containing RC tuning circuits, is described. The electronic circuits and the design of the filters are presented with all details.
本文描述了一种构建低频（1赫兹至20千赫）有源滤波器的新方法，该方法基于应用一对构成独立模块的集成电路运算放大器以及一个包含RC调谐电路的插入式单元。文中详细介绍了滤波器的电子电路和设计。
