Rene/Meissner EMF Higher Voltage Charger Variant

[SkyWatcher123]

Hi gyulasun, yes, i did not study the program, though a brooks coil would be ideal for air coil.
Yes, stranded wire version.
Only way to know how well it will work is to try it i suppose.
The main reason I'm thinking of trying this, is to see if a larger mass of copper will yield any better charging for similar input.
And since it will be equal or lower resistance, if the efficiency is better, then it was worth it.
Though the wire insulation may or may not be helpful, we shall see.
I may just get the 10awg., since the idea is to see if more copper mass at similar coil resistance gives better performance
peace love light

[gyulasun]

Hi SkyWatcher,
Yes, the Brooks coil shape insures the highest L inductance for the minimum possible wire lenght to use, so this is in favor for the smaller DC resistance quest. But if someone makes such coil to differ from the ideal size ratio by some percent it does not matter much and in this respect the calculators may help to observe the needed size ratio. 
Speaking of highest L inductance, if high L is beneficial for this setup, then cored coils may also be considered, we covered this already and you did several such tests too.  I mean cores can further reduce wire length, hence DC resistance.
Okay on the awg 10 wire size, surely worth a try to see how it works.
Gyula

[SkyWatcher123]

Hi gyulasun, thanks for the reply.
Not sure either, if inductance is of most importance, this experiment will be to see if more copper mass gives better charging efficiency.
I don't have any other larger ferrite rod type cores, though i could crush up a bunch of ferrite c-core, etc. that were salvaged and mix with some glue into a tube, to make a core.
peace love light

[gyulasun]

Well, in general, if we increase copper mass in a coil and it involves an increase in wire length, then inductance also increases.  If we increase copper mass without increasing wire length, then inductance increases a little only, I think.  It is okay that you wish to see what other effect an increased copper mass may have.  IT would be good to use an L meter for comparison between coil inductances you have been using for such tests now or used in the last couple of weeks.

For cores you could use the ferrite rings as you already did by stacking them in a line, no need to grind or crash them and mix the powder again with glue because their permeability will be much less then originally was (you cannot press them with as high force as they do during the ferrit manufacturing process).

Gyula

[SkyWatcher123]

Hi gyulasun, thanks for the helpful reply.
Hmm, I just briefly tested a new coil/core with just about 2 layers of 18awg. magnet wire at around .1 ohms.
I tuned the circuit, by adjusting voltage input, to get similar watts input as previous 12 strand coil and i wound the wire directly onto the ferrite tube core, no gaps between wire and core or anything.
Seems to have similar charging performance and no noticeable heat anywhere, though the frequency is higher. 
Can't say it is truly comparable to the 12 strand without doing a charge/load test.

I'm going to do this, since it is not 2 full layers, I'm going to unwind enough from the other 12 strand coil, to wind 2 full layers onto the ferrite tube core, with only thin packing tape for insulation.
This should make the resistance below .1 ohms.
We shall see how it works.
peace love light