Complete information on working SM style device.

[otto]

Hello all,

@Grumpy,

I see that you want exactly the same as Im doing.

1. use tubes - OK, you dont want them

2. pulse a flash unit from a camera, maybe without the big electrolytic cap, for a higher frequency - output  sine waves - remember the video? It looks to me that there is a little transformer from a flash unit sitting in the centre of the TPU AND if my memory is OK, under this little transformer was a extra coil.....hmmm...was it EM with his coils driving LEDs....

3. pulse a flyback transformer - output sines

4. build your little air transformer - primary - secondary and then connect 1 end of the primary to 1 end of the secondary so you have biiig signals

5. buy a little pulse transformer, connect this baby to have an high output voltage and pulse it. They can be pulsed in MHz, cheap, very good insulated between the primary and secondary.....I cant buy them....ha!!

As I cant buy them, I pulsed a little oridinary transformer 230V/12V but in reverse. Of course, 1 end of the primary connected to 1 end of the secondary. After 20 minutes of pulsing the transformer got hot but I saw a very nice spark and this means that I really had big signals. Yes, the iron core of the transformer got hot. We all know why but I only wanted to see the high voltage and I saw it!

When you rise the voltage of the pulses and when you feed them into our TPU you will have pulses in kilovolts because, as we know, the TPU already rises the voltage of the pulses.

I have only 1 question, as always: why square waves??? The TPU will anyway convert this square waves at some frequency mixes to sine waves. So why not use sine waves? Our master was talking about music, amplifiers, stereo....

At high frequencies, a sine wave looks like a kick. Or, if you stretch a kick from a square wave you will see.....hmmm.....a lot of .....

A few days ago I connected my scope to the loudspeaker from my radio. I heared the music and could see the waves. I hated myself because I didnt finish my tube oscillators. No time. I connected my TPU to this loudspeaker. It was clear that there couldnt be an effect but I was curious.

Otto

[kames]

I can also confirm a possible voltage amplification effect under no load resonant conditions.  I used an iron wire coil of around 10 turns for the delay coil.  First I established resonance of the bifilar coil without the iron wire; this was at 5.557MHz.  When I added the iron wire, the system detuned to a lower frequency of around 5.2MHz and the resulting peak-peak voltage was greater by around 20% (interesting how the two tests coincide).

I was driving the system with 10V p-p square waves through a 100K resistor, and the no-load p-p voltage was 11.4V.  When I switched the generator to sine wave, the coil p-p voltage dropped to around 8V.

In all cases the voltage scoped across the coil was a perfect sine wave.

I am not sure what to make of this...I am not seeing any sharply defined kicks, and this could just be simple resonant voltage rise occuring.  Shorting the 100K resistor destroyed any voltage rise as expected.

Any thoughts Spherics?

Eldarion

Hope you guys know that ANY coil works as a low-pass filter and that the low-passed square wave tone appears to have a higher peak-to-peak voltage, and that depends on the cutoff point of the coil. The higher the cutoff point, the higher will be the raise. Of course, this raise does not have any OU characteristics, because the effective RMS will be lower than that of the original square wave.

@aleks

I think people are aware of what you are saying. In my test the input and output pulses had identical shape. When I adjusted the scope to display both pulses with the same scale on the screen and put one on top of another, there was ZERO visual shape difference. That means, there was no ?resonance? as LC like and there was no effect of any kind of filtering.

Kames.

[Grumpy]

Square wave!

I can get there with a voltage amplifier - thanks all anyway.

[Feynman]

Grumpy , did you get that schematic you were looking for?

[sparks]

    Tesla figured out how to use a bifilar winding so that you didn't need an external capacitor to obtain a resonant circuit at highfrequency.  Just a coil and a frequency. Automatic resonance.  Genious.  http://en.wikipedia.org/wiki/Bifilar_coil. 
   
    SM or Spherics or someone figured out how to measure the voltage developed across the bifilar "capacitor" when the current through the winding was phased displaced by the ambient magnetic field. 

    The coils as described will not give you much gain in and of themselves.  What it gives you is a moving magnetic field.