Having a look around on keelynet found a couple of pages with some good info
http://www.keelynet.com/keely/puha1.txt
states 620 hz ,630 hz and 12khz as well as 600 hz (Puharich's frequency) and 42.8 khz (Meyer may have used this one or the 12khz)
more here http://www.keelynet.com/keely/danart1.htm and an interesting and funny section about half way down entitled
VERIFICATION OF FREQUENCY TO PRODUCE ETHERIC FORCE FROM WATER?