http://www.justrealmusic.com/content/transformers.htmHeres what I found @ 50:1 ratio
58$ is alot , I think I will just look for a lower step up , maybe 20:1 or 30:1 , if anybody knows where to find good cheap transformers with good setp up in the audio ranges plz let me know . Toroidal is has great benefits but I cant seem to find any good cheap ones . There just needs to be an isolation between the amplifier and cell circuit .
The frequency cutoff -3db must be AT LEAST 20khz , even that is a little low , my oscillator can go up to 20khz .
We are aiming for low frequencies here ,Puharich was using a 600 hz sine with an dc powered audio oscillator and tube amp stage , and the ringing was responsible for all those ghz range harmonics .