diameter is 21 cm
the l2 coil made of 0.75mm2 has a diameter of 19cm
very happy with this result.
l2 has 25 windings
l3 has now 45 windings.
If anybody sees a mistake, please correct me!
Power is created by combining voltage and current. So when these to are in phase, the lamp burns.
I've been saying that for at least a couple of years.
There's more to it though...
The counter EMF that flows through the load ends up back at the source, killing the dipole, killing the source.
Splendid. So how do we get the counter EMF flowing in the same direction as the source?
That's where the magic is. Wave & anti-wave. How do we tell which one is which?
I'm not certain we can. My feeling is that we have to know which one is which intuitively. Only then can we do the right thing, at the right time and in the right place. I suspect Nelson has this figured out and I'm sure that "first time" was just as difficult for him as it will be for the rest of us. The second time will be much easier.
You should make some measurements about the B field in between coil L2 and L3 like i did and show in some videos with the compass.
The B field should not manifest in a compass needle like i show in other video .
did you already measure input versus output in L3 ? That is important for sure .Why you just try measure the voltage over the halogen bulb in series with 1 ohm power precision resistor. You will able to measure the circuit including the variation of the resistance of the halogen bulb .Don't use the the 4.1 ohm resistor in parallel in L3 ; if is high voltage the output of L3 you should use a higher value resistor to measure the current by the voltage drop in closed circuit. Otherwize maybe you buy a good current probe. My old Antek current probe was nice . It could be trick measure such circuits . look how many amps a nice hand meter measure under equivalent coil L2 in this video . https://youtu.be/tCYeErWACwA?t=43
Of course the tank current is reactive but to me seems real.
I do not have more than one disruptive discharge in L2 per period, it is just one powerful discharge .
All the circuit should work smoothie without big spikes . To me seems your gate mosfet have low output signal and the mosfet is not switch full open cause some ringing . Maybe could be the reason to you have any high consume in idle mode . Normally it should some 90 milliamps when input is 12v or 60 when input is 30v .
You have the base of my oscillator , and i know that the process of tuning is hard , myself take lot of time until able to tune with less difficulty .
This oscillator circuit is very versatile and could use different type of coil in L1 indeed a pancake coil . The important is L2 and L3 be Pancake bifilar coil. Like i told you in other emails , after you able to put working your circuit , you could modify them and try other approaches . The circuit could be used to many applications .
Since I now have a 3dprinter I am amble to make a coil holder.
I made a 24,7 Ohm power resistor by hooking op 3x 8.2Ohm in series.
One resistor is 5W rated, so will become hot faster. the other two are 50W rated.
When the mosfets that nelson uses are deliverd, I might build another circuit, without the pulse transformer.
I suspect C3 acts as a stable voltage for the gate source to switch the mosfet...