Bubz,
Nice find! It is interesting in that the document refers to frequencies that affect the water molecule.
I believe the steam resonator is not as specific as the resonant cavity unit though, as it only needs to pulse two plates alternately + then - in sequence.
I believe our issues lie in the transformer design. The only ones I know who have been successful are Tony and Don, to some degree.
I am not aware of any others who claim to have the steam resonator working, or to have heated water any other way aside from electrolysis.
I will try augus' circuit and see if I get better results than with Tony's resistor heater!
Augus: Is the 1khz source in your diagram from another external 1khz source or is it the 4047 listed in the circuit?