| Notes | The Moog 907 Fixed Filter Bank has 8 band pass filters and 2 shelf filters (e.g. low pass and high pass). The filters do not have gain but each has an attenuator control. This 907 has switches on each control to disconnect it from the input signal.
The 907 is a 4MU wide module while the 907-A changed the layout of the controls for a narrower 3MU module.
There are two PCBs on each side of the module. The switches were badly corroded and had no continuity. One potentiometer had already been replaced without a switch. The switches were sealed so to clean them required removing the potentiometers, removing the cover, and then removing the switch. I decided they were so corroded to replace the potentiometers. These TE Connectivity (23ESB103MMF50A) 10K log with DPST switch worked great.
Each PCB has five filter sections. |
