Calvin Netzer, 74, who came to Washington in the late 1940s after surviving four concentration and labor camps in Europe and was an electrician here for more than three decades, died Sept. 4 at Holy Cross Hospital in Silver Spring of a heart attack.

Born in Mielec, Poland, Mr. Netzer as a teenager was captured and imprisoned there by the Nazis. He escaped briefly and hid with his younger brother, Chaim. Both were found, but Mr. Netzer never saw Chaim again. His older brother, Murray, had been in the United States since 1937.

From 1942 to 1944, Mr. Netzer was held in two Polish camps, Skarzysko and Czenstochowa. He was transported to Buchenwald in Germany in 1944, and the next year he was shot in his right hip during a death march to the Lebenau-Laufen camp, also in Germany. Thousands started the march; a few dozen made it. His experience is on record at the U.S. Holocaust Memorial Museum.

Mr. Netzer was liberated from Lebenau-Laufen in 1945 and came to the United States in 1949. He did odd jobs, including electrical handiwork, and learned English by watching American movies. By the mid-1950s, he was working for his brother Murray, who ran Murray Electric in the District until the mid-1990s. Mr. Netzer retired in 1989.

Since coming to the United States, Mr. Netzer grew fond of dancing, particularly ballroom style. He and his wife of 43 years, Peggy, were members for the past decade of the Big Band Society, a group that dances to live orchestras.

Because his wife was English, the Netzers were members of the British & Commonwealth Society of North America, a social club, since the 1970s.

Mr. Netzer also learned golf five years ago and played regularly at Rock Creek Golf Course in the District.

Mr. Netzer had been a member of Temple Shalom in Chevy Chase since 1965.

Survivors include his wife of Silver Spring; two sons, Michael of Woodsboro, Md., and David of Pacifica, Calif.; two grandchildren; and his brother Murray of Silver Spring.