Well THAT is interesting! 5 megahertz!
I remember Hinkel telling me that while there is no monumental difference in HF frequencies, he was not pleased when the FCC mandated the three frequencies that electrolysis machines could use in the United States: 13.56, 27 and 40 megahertz.
Hinkel felt that the lower frequencies, such as 1.5 - 5 megahertz were best for elecrolysis (more of a “heating” range, he said). Whereas, he said, higher frequencies create more of a “cutting” effect. Thus, Hinkel went for the lowest frequency: 13.56. I’m not making a statement here, only remembering what Art told me.
Problems is, I would assume that the 5 megahertz unit would be “illegal” in the United States due to FCC rules? Probably okay in Europe and Canada? Although, maybe the rules have changed? All modern units are shielded, so I don’t see why FCC rules would be important any more.
(The older units … pre WWII … could be “amped-up” and used for Morse code communication: and they WERE! Great NYC story about a “spy” communicating with an offshore U-boat, using a modified Kree unit.)
Anybody know if there has been a change in FCC rules? I’d like to get my hands on this unit and try it out.