In counties where voting machines or electronic voting systems are used, the procedures of section eleven, article four, chapter three and section twelve, article four-a of said chapter three of this code shall apply respectively to the election of magistrates in the same manner as they apply to the election of members of the House of Delegates.
Notwithstanding the provisions of section seven, article five, chapter three of this code, for purposes of the primary election to be held in the year one thousand nine hundred seventy- six, the last day for filing certificates of candidacy for the office of magistrate shall be extended to the twenty-seventh day of February of that year.