@Joules oh my wow! I did not realize some were excited about this circuit, nor had I considered areas that can use this now. That is a good point.
I'd mainly looked at these as a "just in case" there was a time without common power. I assume 12v will be common and LED's are becoming that way fast.
For tuning I can try and offer some tips that I've noticed with the 5 versions so far. I DO use the audibility of the operation to help too, so there is a "feel" about it. I'm looking for a particular smooth sound now, that is hard to describe. However, my first took about 10hours straight to tune (SJRC 1.0) and these last two I'm down to about 4 hours. I don't have a huge supply of parts though, as I'd stopped my research a long while ago.
My results up until and including the Toroidal v1.1; led me to the possibility of a 50w appx. 120-12 or 24v may work for a small possible size. Though, these are not probably wound the most favorably.
I suppose I want to state that I do not feel there's overunity here (and why I've never stated such); in the utmost sense, just an efficiency of operation.
My hope for these last versions was to make this something easy for many to accomplish or re-create. Also, I'm hoping for others to verify or dispute what I'm seeing. I've done all the testing I have at my disposal, but still will not have removed all personal doubt without another verification. My self and a life mentor of mine, both tend to look for errors first; rather than expect something unknown.
Last, yes. I am no longer posting at OU, though I stick to myself a lot; so it's more a personal thing. I really debated about not posting anything, as I don't look for money or attention; however, I did not want to leave ONLY showing transformers that may be hard to find. As I mentioned, I felt somewhat unfinished. There is one other thing, I'm working on here too, but is taking a while; so that will be a bit.
Sorry to ramble and I don't plan to post here much, but I will watch to answer or be around if needed. I think I covered it all
. Sincerely, PB
EDIT: At Prof.Physics; how should I arrange for testing 6 bulbs? Since my circuits are designed for such and I've shown almost the same current draw with one bulb. I was thinking of making a box that contained just one in the set? I could then shift from bulb to bulb to ensure each is the same (or similar). I cannot think of a way (even with parabola's) to get an even light distribution on to a single light meter with 6 or more bulbs.

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