Delete comment from: Ken Shirriff's blog
Looks like the i-Spec circuit separation page is dead. Here's a copy from archive.org: http://web.archive.org/web/20120818141654/http://www.i-spec.com/Basics/circuit_separation.html
Aug 26, 2013, 12:55:30 PM
Posted to Apple iPhone charger teardown: quality in a tiny expensive package