Mark C. Pope offers the Hobart 220 30KVA frequency converter. '#8729; Extremely quiet operation (ideal for hangar operations) '#8729; Simple on-off push button operation '#8729; Standard 12-pulse input transformer '#8729; 28.5 VDC transformer rectifier available (operates simultaneously!) '#8729; Reconnectable 208, 230 or 460VAC, 60Hz input