Earlier quoted context omitted.
I’ve always seen “phreaker” on 80’s era BBSes. This is the first time I’ve seen “phone phreak”. Maybe regional differences in us old school nerds?
Phone freak (with an f) was the original term, in the late 1960s. When Ron Rosenbaum wrote "Secrets of the Little Blue Box" he made it into "phone phreak". "Phreaker" came a bit later (1980s is about right). Shameless plug -- I wrote a history book about this whole subject, "Exploding the Phone": https://www.amazon.com/Exploding-Phone-Phil-Lapsley/dp/08021... My website, such as it is, offers additional goodies, incl…
I had no idea about the 1960s spelling - thanks for mentioning it.
As it happens, I bought your book in February 2013, only a couple of weeks after it was released. I will have to re-read it now. :-)
I highly recommend the book to anyone interested in this bit of hacking history.