@ Pirate

Hi Bill, worth trying that idea of yours, interesting to see how much inductive coupling you can produce.

  Crowclaw:
  Yes, the ferrite yoke is from a CRT 15 inch monitor. I did remove the original windings, and replaced them with two thinner secondary coils, of 28 gauge mag wire. One of the secondary coils is used to light unmodified 110v CFL, or LED bulbs. And using both secondary coils connect in series,for lighting the gutted Cfls, which need a much higher voltage source.

  I now use dual inverter circuits for lighting gutted CFLs, or florescent "halo" tubes, etz...  So, Both individual driver circuits are connected to the same 12v battery input source, but their individual outputs (single wire outputs) are both going to each side of the florescent, or Cfl bulbs.
That is how I do it, in order to get similar to AC grid lumin levels.  As most all CFL bulbs use dual driver circuits in their bulb circuitry. But, Led bulbs don't.
 
  I'm also hoping to obtain more information than what was already given on the self runner circuit, shown by the Russian guy in the video posted previously.  Although it seams like that is way too much to ask for, still.
                                                                           NickZ

Xee2:

Thank you.  I will Google the voltage divider.  I have never heard of this and now I will learn something  else.

Nick:

I have not as of yet burned out any LED bulbs  I always gut the driver circuit except for the LOA bulbs that don't have any.  It appears that the higher the voltage and frequency, the brighter the light...on an very low mA draw.  (Thus far)  (Interesting video.  I am not sure what he is showing there though)

Crow:

I just purchased a resistor pack of like 300 resistors of varying values.  I will see what I can do.
Yes, I will add a bunch of thin windings on the other end of the ferrite rod and see what I can get vs the additional amp draw.

I really appreciate everyone's input here.  As you all know, I am still learning and I am learning a lot thanks to you guys.

Bill

  Bill:
  When dealing with 12v batteries or higher voltages, instead of dead AAs like you've been using previously, you may find that over time, the much higher voltages provided by some of these pulse circuits (like 1000 to 1500v), along with some amps, can burn some of the unmodified Led, or Cfl bulbs circuitry. I mention this as a warning to some of us.
The Joule Ringer circuits using ferrite rods, or like the yoke cores, can also provide some amps of output, not just mAs. Enough to light incandescent bulbs fairly brightly,
Even gutted Cfl bulbs can show signs of carbonizing at the connection point, after a while.
This may not happen at first, but as mentioned, I run my circuits all night long, every night.
  I also use these circuits when connected to ac 120v to 5v or 12v wall adapters, to power, smaller stereos, charge cell phones, as well as light led bulbs, or 12 car bulbs.
And I'd also like to try it on the new mini pc like the notebooks, 12v fans, etz...

  Very interesting to see how it goes with the newer Led bulbs like those that you're trying out. They are not available locally here, yet.

I've just determined that the 13003 transistors found in many CFLs can probably be used where 3055s work. Here's one "patched in" to one of my 2n3055 JTs, lighting a NE-2 on a depleted AA battery. (The 3055 is disconnected.) The neon seems to me to be a bit brighter than with the 2n3055, but I have done no measurements.

I also tried it in a low voltage LED JT and it worked, but not as well as the usual BC337 or MPSA18.