Chandler Limited Germanium Tone Control - Manual (Page 5)

Controls and Features continued
WHERE IS UNITY ON THIS THING? - There are several ways to get unity gain from the Tone
Control each with its own variations of frequency response, THD etc.
Here are examples with basic descriptions of the tone of each.
1) Gain 2, Feedback 10 - Slight low end rise and gentle high end roll off. THD and noise are lowest of
any unity gain setting.
2) Gain 5, Feedback 5 - Slight low rise with generally flat extended high end. THD is medium while noise
is low but a few db higher than setting 1. This would generally be considered the "flattest" setting.
3) Gain 9, Feedback 2 - Flat low end with a gentle high end rise. THD is medium and noise is generally
the same as setting 2.
4) Gain 10, Feedback 1.5 - Very slight low end roll off with a smooth high end rise. THD is highest of
any unity gain setting and noise is roughly the same as 2 and 3.
Other unity gain settings:
Gain 3, Feedback 7
Gain 4, Feedback 6
Gain 6, Feedback 3.5
Gain 7, Feedback 3
Gain 8, Feedback 2.5