Power type and voltage. Alternating Current supply (AC) / 100-120 Volt. No sound reproduction output. Hickok Electrical Instrument. Tablemodel, low profile (big size). 12 x 9.25 x 6 inch / 305 x 235 x 152 mm. Price in first year of sale. United States of America (USA). Hickok Electrical Instrument Co. Service- or Lab Equipment. All tubes original and working. Missing probe so not tested.