Bell Laboratories Record (February 1939, Vol. XVII, No. 6)

New York, NY: Bell Telephone Laboratories, Inc.. Very Good. 1939. 1st Edition; 1st Printing. Stapled wraps. This is a larger than trade sized paperback booklet with cardstock covers and a stapled spine. The edges of the book covers have some rubbing, bumping and wear to both front and rear covers. The top edge of the front cover has a sticker with previous owner's names (marked over by inked lines). Articles include: The crossbar system, Pedro and the Voder, "My God, it Talks! ", Telephone Alarm Fuses by Frank Hardy, Long Distance Conference System by H. E. Etheridge, , Cross Talk Balancing for the Type K carrier system, and more. "Bell Labs Record was a publication of the Bell System of the American Telephone and Telegraph Company from 1925 to 1984 when it was transferred to AT&T Technologies. This house organ included descriptions of technologies created by Bell System including basic research, devices, technologies, systems, and operations relevant to telephone company, manufacturing, and government applications. The public relations department distributed the Record to all Bell System employees. (from World Radio History) .