Specifications:Voltage ratio: 1:1AC impedance : 600 OhmsDC impedance : 135 OhmsPower supply phase: single phaseMoisture-proof mode: openCooling mode: oil immersed air cooledFrequency characteristics: intermediate frequencyWindability : Double-wire windingCore form: amorphous alloyCore shape: EI typeAppearance structure: verticalWeight: 40 gPackage Included:1 x 10pcs/pack Audio Transformers