simple isolator for 600 ohm balanced audio lines
http://www.jensen-transformers.com/as/as036.pdf
audio signal isolation transformer
http://www.procosound.com/images/IT4A.PDF
Send signal from one microphone to two mixers.
http://www.procosound.com/images/MS2.PDF
isolation transformer with impednace conversion
http://www.jensen-transformers.com/as/as011.pdf
and Converts to Line Level
http://www.jensen-transformers.com/as/as059.pdf
with Symmetrical Outputs
http://www.jensen-transformers.com/as/as060.pdf
isolation transformer for 600 ohm balanced audio line
http://www.jensen-transformers.com/as/as010.pdf
for use with professional low impedance sources and high impedance loads
http://www.jensen-transformers.com/as/as046.pdf