XXVI. NOISE IN ELECTRON DEVICES Prof. H. A. Haus Prof. P. L. Penfield, Prof. R. P. Rafuse Jr. RESEARCH OBJECTIVES The study on noise performance of linear amplifiers and frequency-converting The immediate objective is to describe the effect on systems will be continued. noise performance of the varactor series resistance in frequency-converting systems. H. A. Haus, P. L. Penfield, Jr., R. P. Rafuse This work was supported in part by Purchase Order DDL B-00306 with Lincoln Laboratory, a center for research operated by Massachusetts Institute of Technology with the joint support of the U. S. Army, Navy, and Air Force under Air Force Contract AFl9(604)-5200. 237