Performance of Nuvistor Small-Signal Tetrodes in Television Video IF Amplifiers

The Nuvistor small-signal tetrode, a modern and unique development in the design and manufacture of electron tubes, has great potential for use in the intermediate-frequency stages of new television receivers. The Nuvistor provides the circuit designer with a new tube capable of superior performance in this wideband amplifier application. In addition to its high figure of merit, the Nuvistor tetrode has many other advantages pertinent to its use in television receiver circuits. This paper briefly describes the constructional features of the Nuvistor which contribute to its high performance, and gives detailed comparison of laboratory models of two- and three-stage stagger-tuned if amplifiers.