Abstract :
Franklin S.CoaIe, author of the paper "A Switch Detector Circuit", which appeared on pages 59-61 of the December, 1955 issue of Transactions on Microwave Theory and Techniques, has requested that the following information, omitted in his manuscript, be published by the editors. The work for the paper was accomplished while Mr. Coale was a member of the Sperry Gyroscope Company under an Air Force Contract. P.J. Sferrazza, of Sperry, developed a band-pass crystal switch at 3300 mc which gave a dynamic switching of greater than 44 db over a 10 mc bandwidth.
