Carl H. Claudy Jr., 75, who worked in the public relations department of the C&P Telephone Company for 37 years before retiring in 1965, died of cancer Tuesday at Sibley Memorial Hospital.

During his last 17 years with the telephone company, Mr. Claudy edited its magazine, "The Transmitter."

He was a native of Washington and a 1923 graduate of the old Central High School. He attended George Washington University.

During the 1920s, he played the saxophone with Happy Walker's Black and White Taxicab Golden Pheasant Band at the old Powhatan Club in Washington.

He worked for several years for Shannon & Luchs real estate before joining the telephone company. He was a Navy information officer during World War II and attained the rank of commander.

He was a senior member of the Potomac Power Squadron and had served on the governing board of the Washington Athletic Club from 1963 to 1966. He also was an award-winning amateur photograper, and had contributed articles to several area publications, including Chesapeake Bay Magazine and The Potomac Current.

His wife, Martha, died in 1978.

Mr. Claudy's survivors include four sons, Hugh D., of Chapel Hill, N.C., Nicholas H. and Lynn D., both of Washington, and Frank R., of Baltimore.