This paper analyzes an unusual active bandpass filter employed in the Buchla Model 295 10 Channel Comb Filter, a synthesizer module developed as part of the Buchla 200 Electric Music Box by Donald Buchla. The filter consists of a peculiar rearrangement of elements in a classic Twin-T configuration; to our knowledge, it has not been previously addressed in the literature. As an example, we explore its specific application in the Model 295.

翻译：本文分析了Donald Buchla开发的Buchla 200电子音乐盒合成器模块——Buchla Model 295十通道梳状滤波器中采用的一种特殊有源带通滤波器。该滤波器通过对经典双T型结构中的元件进行独特重组而构成；据我们所知，该设计此前尚未在文献中被讨论。作为示例，我们深入探讨了其在Model 295模块中的具体应用。