N.R.M.R.E. An investigation.

[itsu]

I use LTSpice and qucs, and no I haven't tried simulating this circuit. But I think the "Itsu redraw" schematic looks like it comes from a circuit simulator.

Yes, it was drawn up using MultiSIM BLUE (which you can get via Mouser.com here ) but not for simulating as that is an art on its own which skills i do not have.

What is the definition (Nelson's preferably) of "HV Radiant" and how is it supposed to manifest itself in this circuit, other than blowing up capacitors and transistors? The HV part I understand, I think (for me it means generally over 1kV) but what about "radiant" ? Is that OU-speak for broadband RF noise, or does it mean something else? 

As far is i understand, yes, its OU-speak for broadband RF noise. but hopefully Nelson is willing to explain this.

I must say, when I opened this thread this morning I was rather put off by what I saw. It's enough to trigger the transformation of a nice placid TinselKoala into the dreaded Drop Bear.

Hopefully the nice placid TinselKoala in you prevailed


Itsu

[icarus]

Hello,
    I mounted on the bread board a copy of the circuit with different components and the result is almost the same, about 360 volts no-load (220 volts with the LED lamp load) output HV and tens of volts on the "charger" LV output; wave frequencies between 10 and 15 KHz.
Does not always work on the first shot, it is necessary to find a particular point between voltage, amperes, components used to obtain the oscillation and the output voltage peak. For me 5.5 volt 0.3-0.5 A.
As others have pointed out, sometimes the oscillation is fleeting and I burned a lot of transistors in the test.
Even by varying the transformer (9, 12 or 24 volt primary, secondary 240 volts) or the diodes bridge or transistor or the toroid (2 to 6 inches) does not change much.
I believe that this circuit is only a starting point in the work of Nelson and that he has used this as a starter to generate HV that in another way it is managed.
The point now is this: what we do with this HV?
In itself the circuit does not self-running:  I tried to loop using the energy in HV output with a step-down transformer and that of the LV output with capacitors without result. Other ideas ?
What do the Kapanadze boys with high voltages? How to play with this type of energy?
As we move forward at this point?

Icarus

[TinselKoala]

Hello Icarus
Thanks for your report, very interesting, I had no idea so many people were working on this. I hope you don't mind some questions.

How did you connect your transformer primary and secondary? I am still unsure about that.

Did your diode bridge on the HV end still work normally when removed from this circuit and tested within its normal operation range?

Do you think the main purpose of this circuit is to generate HV, or is the charger side the main purpose?

I read that you tried self-looping from both outputs. Did you try battery charging instead of cap charging, and then running the circuit from the battery while charging another one?

Do you have any scopeshots you could share?

Thanks in advance--
--TK

[Grumage]

Good morning all.

I've just read that Chet has suffered a re occurrence of his recent problem, I would openly like to wish him well and a speedy recovery. Get well soon Chet.

What's the consensus? A quick zip around with the vacuum? Tidy the thread, so to speak?

That's all for now folks.

Cheers Graham.

[citfta]

Good morning all.

I've just read that Chet has suffered a re occurrence of his recent problem, I would openly like to wish him well and a speedy recovery. Get well soon Chet.

What's the consensus? A quick zip around with the vacuum? Tidy the thread, so to speak?

That's all for now folks.

Cheers Graham.

My vote is a yes.