An Improved Balanced Circuit for Use with Electrometer Tubes
Louis A. Turner, C. O. Siegelin · Review of Scientific Instruments · 1933
A modification of Soller's balanced circuit for use of a single FP-54 tube has been found which gives improved stability of balance and the possibility of use with galvanometers of high resistance. The theory of the circuit and detailed directions for calculating, setting up, and balancing it are given.