Thane Heins Perepiteia.

[hartiberlin]

Hi Groundloop,
welldone with your new core,
but you should stick in here where I painted it black
some iron or ferrite core pieces ,
so you do not have so big airgaps...

Many thanks.

Regards, Stefan.

[Groundloop]

Stefan,

This was my first test with what I had ready at hand. I will make a new center coil soon.

Groundloop.

[aether22]

@aether22,
It is a very simple circuit...

It was the secondary circuit i was unclear on, not the primary.


Thane, if you halved the resistance in the secondary circuit in your tests when you were getting (I think it was) 170v across your load, did the voltage across your load drop?

note: I am assuming you did find it dropped by the fact that you were increasing turns each time despite the fact that you can't have been pushing the wire near it's max current. However such a result would be in seeming contradiction of getting more energy out when the number of turns was increased.
This would lead me to another question and that is, when the number of turns was increased could you pull the same current as the last test while realizing a higher voltage? (or was it a higher voltage but somewhat lower current?)

[gyulasun]

Hi Thane,

Would you mind telling which software you use nowadays for modelling your toroid setups?
Is it from Ansoft?

rgds,  Gyula

[Groundloop]

All,

Attached is a image of my new air core coil. I have a 8 mm center plastic tube so that I can try out various small cores. The center coil is made of two bi-filar coils. The power coil is made of 0,35mm magnet wire and the trigger coil (for my oscillator) is made of 0,25mm magnet wire. The coil is made egg shaped so that the coil will fit inside the powder Iron core center. The number of turns is 700.

With this coil the oscillator is using 0,1 Amp at 11,97 Volt from the battery. The two secondary coil is not connected to any back looping circuit right now. The open ended voltage was 90 Volts at both coils.

Test number 1:  I started up the oscillator and did look at the amp meter. When I short circuited BOTH coils (or one of them at the time) then I could NOT see any DIFFERENCE in the input current usage!

Next test will be soldering resistors to the output coils and do measurements.

Groundloop.

[EDIT] It is late night now and I will test more tomorrow. First resistor test 470R 5W gave 0,139 VAC over the         
          resistor. Input was 12,50 @ 0,1 A. So over 1 Watt input and nothing something output.
          ( Output: 4,1108510638297872340425531914894e-5 Watt. = 0,00004 Watt.)