Tender For power supply transformer as per the following specification. 1. primary: 230v ac, 50hz. 2. se condary: 24vac. 3. rating: 24va. 4. voltage regulation at full load: 5%. 5. winding: enameled copper wire. 6. core: crgo lamination. 7. class of insulation: ?b?. 8. mounting: pcb mounting. ]