Tenders for Supply of Transformer Rectifier Unit, Input Ac 1Ph 230 Volts, Output: 0 -110 Volts Dc Variable, Capacity 5 Amps Dc, Air Cooled, Housed In Ms Box With Input Lead 3 Pin Socket, Indication Lamps And Digital Voltmeters For Ac And Dc & Output Dc Terminals. Makes/Brand: Utc/Varaic Or Equivalent. Warranty Period: 30 Months After The Date Of Delivery