This video is simply to demonstrate the raw power the AirCore is capable of.  This circuit is not intended for incandescent bulbs, however, with some modification I think small appliances could be run from this circuit in addition to LED bulbs.  There is a slight ringing that can be heard with two 40 watt bulbs.  That is from the secondary pulsing against each turn.  For those of you experimenters that have played with AirCore inductors you will understand the significance of this video.

http://www.youtube.com/watch?v=Z6vhP2iUk6s

Another excellent vid, Lynxsteam-- very informative.
Thanks.

Mr LynxSteam:

Thanks again for all your clear and precise explanations and for your very simple circuit.
So, no (apparent) capacitor, no diode, no resistor, just 2 air core coils and this
very famous old 2N3055!

Yes: I sometimes have to manipulate the switch to get the CCT running.
This adds to the strangeness of the circuit.
--------
Gee, incandescent bulbs now! Nice work.
--------------
For my part, my poor (first) replication works with 6 watts small fluorescent
'tubes'  (I do not want to use these deadly bl' CFLs).
I can use 2 wires, one wire, and even no wire, should I first 'trigger'
the tube by connecting it -for a short while- at the 'cool' end of the HV.
BTW: a couple of days ago, It worked only when plugged at the 'hot' HV side.

So: the behavior of this device is very inconstant and seems depending upon
my mood and perhaps the planets positions, the Dow Jones rate or the weather? 
------------------
I have noticed that:
According to my IR thermometer(and my finger), the 2N3055 does
not really get hot (about 36° Celsius).
I'm drawing about (less than) 0.4 amps (under (more than) '12' volts).

According too to my finger the hot side of the HV wire is indeed very hot.
Now, strange enough, according to my IR thermometer this hot side is finally not
so hot (about 24° Celsius). So what I'm feeling are not 'real' calories?

When 'singled wired', a Leds bulb (or just one led)  blinks!
When fully wired a leds bulb just stops the CCT.

A small neon bulb is OK, whatever the way you plug it (even shorted).

My FM radioset does not like this CCT.

I will try different primary? (few turns)  and  also will build a more serious secondary( lots of turns).

Very Best,
Jean

Jean,

Everything you describe sounds about right.  For CFL's reduce number of primary turns a little and spread them out.  For LED's double your primary turns from what you have.  The CFL's take about 200 vac to get started and then voltage drops as does the Frequency.  The LEDs don't like voltage that high.  They like about 90-130 vac.

The heat you feel from the HV wire is what I feel if I accidentally touch it.  It is very high frequency high voltage and it feels like intense heat on the skin.  High frequency high vltage is much safer than lower frequency high voltage.  I have been shocked before on regular house AC and I can assure you it feels different.  It makes your body oscillate at 60 hz and is very unpleasant.  Maybe don't touch the High Voltage!

If the circuit doesn't want to start its because there is too much residual voltage on the primary.  Touch the positive primary lead to the negative lead to bleed off the capacitance.  I do this with the negative lead attached.  When it is in in this condition and wont easily start test the negative and positive with a meter and see what the open circuit voltage is.  That alone will bleed off the capacitance.

The fluorescents wont fire off when just hooked up to the emitter side of the HV.  They can start when hooked up to just the coil side.  With one wire move your hand up the tube once it lights and watch the light follow your hand.  You become a part of the circuit.  Classic Tesla coil stuff!

Try a 400 v 104k metal film capacitor across the HV in parallel with an LED bulb once you get this going better.  It in effect will boost brightness and lower frequency.  Try different HV metal film capacitors and see what the effects are.  Once you get the aircore setup how you want it you wont need the capacitor.  But its fun.

Mr LynxSteam:

Thanks  for having taking your time for this -once again- very precise
and precious answering. I have saved and printed it out.

So, you too, felt this strange 'heat'.
For my part I purposely touched this wire.

I will try your tests and 'primary' modifications.

BTW: I owe this thread, at least, some pictures.
So, more to come ASAP.

Thanks again and very Best,
Jean