Application of junction transistors to carrier-frequency computing amplifiers

THE PURPOSE of this paper is to describe some of the considerations involved in designing a transistorized summing amplifier which could be used as a building block in a carrier-frequency analogue computer. The basic design philosophy was necessitated by the quality of the transistors commercially available at the start of the development work in mid-1954. Typical transistors are the early type 2N34 and the later type 2N109.