Ralph C. McClellan, 61, deputy chief of the technical logistics branch of the Voice of America, died Monday at prince George's General Hospital after a heart attack.

He assisted in managing supplies, procurement and property for the worldwide relay station system of VOA, the international radio and network of the U.S. Information Agency.

Mr. McClellan joined VOA in 1963 as a transmitter-receiver operator and maintenance supervisor at the agency's Edward R. Murrow relay station in Greenville, N.C. He came to the Washington engineering offices in 1966.

Born in Altus, Okla., he grew up in McAllister. He attended Friends University in Wichita, Kan. Later he studied at U.S. maritime radi cadet schools in New York and Massachusetts.

Mr. McClellan started as a studio supervisor with a radio station in Wichita in 1939. During World War II, he was a radio operator aboard U.S. merchant marine ships. Later he worked for radio and television stations in Wichita and Kansas City, Kan.

Mr. McClellan was a member of Christian Community Presbyterian Church in Bowie.

He is survived by his wife, Mary Louise McCoy, McClellan, of the home in Bowie; two daughters, Susanne Parke, of Houston, and Patricia Bramble, of Virginia Beach; a brother, Albert C., of Cresskill, N.J.; a sister, Alta Reed, of Wichita, and two grandchildren.

The family suggests that expressions of sympathy be in the form of contributions to the Heart Fund.