Toroidal transformer 140W 28V-0-28VAC The toroidal transformer for audio use is suitable for those who need noise reduction and limited space. The noise is attenuated thanks to the way and components with which the transformer is built. The copper winding is done uniformly and compactly to keep noise levels almost zero. The reduced space is due to the toroidal construction system which significantly reduces the space compared to a traditional lamellar transformer. Primary: 220VAC/50Hz Secondary: 28V-0-28VAC Weight: approximately 900 g Diameter: approximately 10cm Height: approximately 6cm