Let me clarify that statement. Throughout this thread - which I have read in it's entirety - there are several discussions relating to the high pitched whine. I did a quick search and here are a few posts discussing the issue - #1578,1871,2471,2605,2862,2878 - there are more I just couldn't be bothered to list them all
I did the same search before asking for the URL. I also searched the old Extreme thread. The reason I asked is that while the whine is discussed several times, there are only two posters (vape4life and Karma) who thought the whine might be coming from the heater. Everyone else says that it comes from the power brick. I thought perhaps you knew of another thread were the whine was actually shown to be coming from the heater.
I don't think ceramic heaters whine. If they did, then we'd see comments from owners of all sorts of vapourizers, and we don't.