TY - BOOK ED - General electric company, Schenectady, N.Y. TI - Rotary converters 24-volt D-C-110-volt A.C. and 110-volt D.C.-110-volt A.C U1 - 621.3124 PY - 1945/// CY - Washington, D.C. PB - General electric company, Schenectady, N.Y. KW - Direct energy conversion ER -