[LAU] OT: isolating transformers, redux

[Niels Mayer]

Jensen has some really good application papers talking about audio
transformers. By induction, one might get an idea of why they cost so
much -- same reason why other "pro" stuff with a reputable name also
costs a lot.

http://www.jensen-transformers.com/an/Audio%20Transformers%20Chapter.pdf
Audio Transformers - Bill Whitlock Chapter 11 (3MB PDF)