FBD Buck-N-Boost Transformer 0.75 KVA 30 Amp - 14-2107-0002Buck N Boost transformer, 50 60Hz, 0. 75 KVA, 30 amp, no tail cord, needs to be installed by electrician, for a FBD 563, 564, 773 or 774 frozen beverage dispenser. When to use a Buck N Boost transformer: 1) To raise or lower the line voltage to the range required by the unit, 2) to prolong the life of electrical components, 3) unit voltage reads below 200V when the compressor is ON, 4) unit voltage reads above 230V when the compressor is ON, 5) to