Cambridge, Massachusetts: Air Force Cambridge Research Center June 1950. First Edition. 38 pages. 10 3/4 x 8 1/2 inches. Publisher's blue printed wrappers, stapled, with black taped spine. Creased vertically. Previous owner name (N.A. Begovich) stamped at top of front cover. Very Good. Wraps.

"Dual pass-band coupling circuits are..... More