The purpose of this catalogue is to provide a downloadable and printable collection of data sheets for our wide range of audio transformers. It also includes some of our technical papers of more general interest. In the ”Quick selection guide” we have grouped the transformers based on their most common application. But if you know which transformer model you are looking for, you might prefer to search the catalogue in strict type number order. In that case, please use the bookmarks icon in the menu to the left.