Kapanadze Cousin - DALLY FREE ENERGY

[T-1000]

Some interesting news on Joule ringer thread:
http://www.youtube.com/watch?v=Zt5zulKQ1XE&feature=em-uploademail

[verpies]

I found an explanation of Step Recovery Diodes:

The generator is fed with a nice sine wave of little less than 5Vpp and a length of 17ns = 59MHz. The diode is always conducting even during the time when the voltage is negative. We see the current (red) a bit shifted to the right because of the two coils and the capacitor. Only shortly before the cycle ends the diode SMMD840 suddenly shuts off and causes a sharp pulse of about 500ps rise time. However, it is only 6Vpp. That's a long way to go until we find such diode able to create 1kVpp. Do you know of any SRD that can do this?

A SRD cannot create 1kV_p-p pulse across a 50Ω resistor, however a DSRD can.

Part of itsu's problem may be that the oscilloscope is connected to the high voltage across R3 towards the mosfet drain for the purpose of current measurement. Both potentials will quickly change in the moment when the mosfet is switched on.

In reference to -V₁  & -V₂, only the potential at the Drain should change quickly because ideally the point +V_2B should not move at all as it is bypassed by C2.

[verpies]

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[verpies]

I always try to measure from real earth potential = GND.

Because Itsu is using N-Channels MOSFETs that necessitate high-side CSRs, he could connect his +V_2B point to earth ground, and use it as his measurement reference point.

Two probes on the oscilloscope can also be set to work as one differential channel when current measurements are required.

Itsu's scope has bad math fuctionality between the channels. It doesn't make differential calculations in the channel amplifiers, it doesn't make calculations on raw A/D Converter outputs - it makes calculations on the screen's pixels

I want to understand how DALLY's coax winding works (or is supposed to work), before I go ahead with the soldering iron myself.

The coaxial winding is a very different story from the generation of nanopulses.

Up till now Itsu has achieved 15nS FWHM pulses @ 1.1kV.  I believe that soon he will be able to generate 1nS 1kV pulses across a 50Ω load.
Also we will be able to inject nanopulses into the coaxial cable and these pulses will get reflected back from the far shorted end of the coax, just like it is shown on the animation here.
Because of the short length of the coax compared to the wavelength of the pulse repetition rate (4.6kHz) the reflected pulse will not encounter the next pulse in the coax, and no standing wave will be created with just one reflection.

The biggest question is: How is that nanopulse (and its reflected copy) going to influence anything outside of the coax, if ideally the E&M fields are confined inside the coax?
Maybe the coax will be leaking or the AB Effect is the answer...

[d3x0r]

The biggest question is: How is that nanopulse (and its reflected copy) going to influence anything outside of the coax, if ideally the E&M fields are confined inside the coax?
Maybe the coax will be leaking or the AB Effect is the answer...

The same way the outside coils influence everything inside of the coax?
The coax picks up a lot of the voltage from the other coils also.. so why wouldn't it participate the same?
Maybe what goes through the inside doesn't?, maybe it's just the outside reflection backwards that counts... and maybe only the outside is picking up the high voltage drive?