This Charter shall be presented to the electors and voted upon at the general election to be held on November 5, 1968. If approved by the voters, it shall take effect and be in force upon certification of its adoption by the Board of Elections of Hamilton County, Ohio, to the extent necessary to authorize the election of a Council under this Charter at the general Municipal election to be held in November, 1969. For any and all other Municipal purposes, this Charter shall be in full force and effect from and after December 1, 1969.