(NYT2) UNDATED -- April 23, 2001 -- SCI-TELLER-HBOMB-2 -- After a heart attack, Dr. Edward Teller sat down with a friend and a tape recorder and discussed the secret history of the hydrogen bomb. The first design, he said, "was made by Dick Garwin.'' Teller, now 93, was not ceding the laurels for devising the bomb -- a glory he claims for himself. But he was rewriting how the rough idea became the world's most feared weapon. His tribute, made more than two decades ago but just now coming to light, adds a surprising twist to a dispute that has roiled historians and scientists for decades: Who should get credit for designing the H-bomb? The first hydrogen bomb is tested in 1952 on an atoll in the Pacific. (U.S. Air Force/The New York Times)