The audio transformer is working in the audio range , also known as the low-frequency transformer. The operating frequency range is generally from 10 ~20000Hz,which are commonly used to transform the voltage or the load impedance. Sourcing hard-to-find electronic components in the open market is a time-consuming work. WIN SOURCE ELECTRONICS specializes in offering obsolete & end-of-life Audio Transformers products, with in-stock inventory, datasheets and online purchasing. Find needed electronic parts, please review our online inventory below.