David, thanx for the note. I guess I didnt get enought sleep when I wrote about "patent agent" I understand if it said on this forum then it is considered "common knowledge" and it doesn't matter if it's patented especialy when I am not patenting the Joule Thief, but a larger device that may contain Joule Thief concept within.Unless the source and conditions are specifically attributed, then everything is in the Public Domain IAW the CCPDL. Please note the following from this license:
Dave
Thank you ALL for your help, I know have multiple options to consider and downselect from depending on type of power source and cost.