A Frequency Eliminating Transconductance Bridge
Walter C. Michels, Richard C. Barbera · Review of Scientific Instruments · 1952
A simple transconductance bridge circuit, which eliminates completely a single frequency component and which suppresses in part a band of controllable width, is described. The circuit requires no reference voltages. A number of circuit variants, adaptable to special applications, are given and the applications of the device to ripple elimination and to band elimination amplifiers are discussed.