Transformers are an electronic component used to change the voltage from one part of a circuit to the next. They appear in most audio equipment from the earlier eras but left a sonic signature on the sound waves passed through them. Most research conducted on the “sound” of transformers has focused on their effect on simple sine waves passed through the component, not complex–musical–waves. This thesis seeks to organize the research available about transformers and simple sine waves and compare it with the gamut of opinions that audio professionals hold about their sound.
Lopshire-Bratt, Addie, "The Perceived Effect of Transformer Core Metal on Musical Sounds" (2020). Honors Theses. 11.