Kron proved to be a versatile employee: He worked in the Large Steam Turbine Engineering Department (1942), contributed to the control of atomic reactor piles (1945), and collaborated with Simon Ramo, Selden Crary, and Leon K. Kirchmayer on power systems. Alger notes that Kron "was a pioneer, not an educator. He used to imply that hard work is necessary for the mastery of any subject, and it does no good to make the way to understanding too easy." In 1951 Kron published "Equivalent Circuits of Electrical Machinery". While continuing with laboratory and turbine assignments on weekdays, Kron began to prepare Diakoptics on his own. His vision realized with publication, in 1963 Kron was assigned to Analytical Engineering Division with H.H. Happ. Together they reviewed Kron's theory, and after Kron's death Happ published "Diakoptics and Networks" (1971).