Some months ago, I happened across a web site which contained short
audio clips of various interesting sources of RF interference (MP3 files
or a similar format). I remember a furnace, an electric blanket, and
common stuff like arcing power lines and ignition noise. I should have
known to grab the files and keep them local.

I went looking for the site again so that I could use these files as
examples in the class I'm teaching, and can't find the site. I suspect
it's now gone. Did anyone snag any of these examples, or point me to a
source?

Thanks. 73, Steve KB9X