how do i make a 50V power supply?

im new to DIY audio and it might seem like a common sense thing but i dont understand how to get a 50V power supply. more specifically the transformer. i dont know exactly how they work as in the setup for the power supply ive looked for a transformer that has an output of 50v and i havent found one. so im either headed in the wrong direction or im looking in the wrong place. im starting to tihnk that you might have to add some volatages together or something lol. i really have no idea. try and take it easy on me im new. it would be a huuuuuuuge help if someone could direct me in the right direction. thanks