HESC GENERATOR 1996HESC GENERATOR 1995HESC GENERATOR 1994HESC GENERATOR 1993HESC GENERATOR 1992HESC GENERATOR 1991HESC GENERATOR 1990HESC GENERATOR 1989HESC GENERATOR 1988HESC GENERATOR 1987HESC GENERATOR 1986HESC GENERATOR 1985HESC GENERATOR 1983HESC GENERATOR 1982HESC GENERATOR 1976HESC GENERATOR 1973