904-B High Pass Filter Module

The 904-B is a voltage controlled high pass filter.  This is a later revision from the three cabinet Moog and the panel has the new logo and module number.


This module has been redesigned to fit on a single PCB.


There are three trimmers in this module - top left: 20 KHz, bottom left: scale, middle right: - output offset.




There are scope images of the high pass filter operation on the three cabinet Moog 904B page.