very high and powerful voltazh voltage from a small voltage

[Hitman]

Hi Michel,

I am curious... 

Where is the zero line on your scope shot above?  And does the amplitude of the pos and neg part of the output pulse changes when you connect the LED lamps?   
IF you dismantled already your setup, then it is ok of course.

Thanks,  Gyula

Hi Gyula,

The zero line would be at the top in the center of where the oscillations starts, looks huge like negative spikes (my setup did not permit readings any higher then this and power input was only .25 of max.)

I've dismantled but kept the yoke as is in-case I can't get the same results with another. The wave form changes from what u see in the scope shot to a normal square wave when the load is applied.

@woopy
Tap water actually conducts pretty well because of all the crap thats put in it, you should try it with distilled water.

Cheers Michel

[woopy]

Hi Michel

Aggree with you that tap water is surely totally corrupted  and polluted with all  we can think so it will get some conductiv properties without any doubt
.

But if i use the same water as a conductor between a battery and a motor for instance, i will get no chance to power it or

And of course i tried  just now a distilled water test and i got a not so strong sparkling melting but a almost incandescent light at the end of the electrode. (but perhaps my distilled water is not perfectly distilled )

Michel what puzzle me here is not the fact that the water is distilled or not,.
The fact is  that i do not see a graet difference between the melting  i get , when i put the electrode in NEAR contact with the other steel  electrode  and  the same electrode in the tap water

wich in other words is ,  that a  "plunging  electrode" in my  "robinet " tap water  should get a so conductiv efficiency as that of a steel tubing

youup trying to be clear but not sure

please try it yourself

Laurent
So a very poor conductiv water can act as a very good steel conductor in this expperiment   do you see what i mean ??

[Hitman]

Hi Laurent

I think that trying to power a motor with a battery using water as your conductors is like edison did trying to send DC across 2 miles of copper wire, but if you use AC it will work no problem. You said you tried with contaminated distilled water and the melting was less ? hummmmm.

Watching your video I actually thought you had something with the electrolysis "YAY" but no, I've been working along time with HHO and still have unsatisfactory results.

I'll try it this evening after the hockey game

Cheers Michel

[gyulasun]

Hi Laurent,

Thanks for the spectacular video, very good.  Yes, normal drinking water conducts electricity (this is why so many lethal accident happens when using hairdryer in a bath-tub and it falls in water...)  and it is difficult to make water pure to decrease its conductivity (here is a link on this http://www.lenntech.com/applications/ultrapure/conductivity/water-conductivity.htm  and conductivity is measured in Siemens, the reciprocal value of Ohm.)  In the link the drinking water is shown as having a 20 to 200 Ohm resistance, this is already too high to pass your DC motor current from the battery you mentioned (voltage drop was too high across the water resistance)  but in case of wire melting your peak voltages are in the several hundred volts range (and this HV pulse has some kHz frequency).

IT is sure that the moment you touch the water with the wire you make an electrolysis and oxigen and hidrogen are created which also burns the moment they are created. This burning surely helps the melting of the wire as it also melts in the open air. So this is what could explain the melting in water, oxigen is present in both cases, (with hidrogen also in the water case).

Re on your question with the diodes:  I wrote on the other forum I found it strange from Sergdo why he used the two diodes as he showed it in his video because when the two wire piece were open circuit (no melting) then no current could flow in the secondary coils or in the diodes and when he shorted out one of the diodes by connecting the two  wires to get melting then he had a normal single diode rectifier (half wave rectification).  This is why I wrote earlier to test melting by using a full wave diode bridge across the secondary coils (together with a 3-4kV rated some hundred nF puffer capacitor). 

First I tried to explain for myself Sergdo's unusual two diode output circuit as follows: the diode (which is in parallel with the two wire pieces to be closed for melting) helps blocking the opposing voltage spike which is created in the secondary coils the moment the contact between the wires is interrupted or current value suddenly changes in the secondary while the wire tips are arcing BUT then there is the other diode with just its reverse polarity for these event to prevent current so indeed no need for the diode in parallel with the steel wires. 
HOWEVER, your scope shots seems to favor the use of two diodes and the explanation I think is in the HV diode itself: it must have at least some hundred picoFarad self-capacitance in the reverse direction and it works as a puffer capacitor to store some of the output energy and this output is what you can see voltage-wise in the upper left hand side scope shot CH2 when you have open circuit with two diodes.  AND in the upper right hand side shot when this reverse capacitance is missing (because the diode is missing) and if you connected your 10:1 scope probe it has about 15pF self capacitance only, hence the output pulse is much smaller voltage-wise when there is open circuit.  TO TEST this, you could use a HV capacitor in place of the diode which is in parallel with the two steel wires. (you can make such HV cap with some ten to hundred pF value by taking a PVC insulated piece of wire, say 20cm long and you make a 'coil' onto this PVC insulation from enamelled copper wire, the capacitor is created between any one end of the inner wire of the PVC and any one end of the outer 'coil' wire, the number of turns controls the pF value.)
You mentioned coil shorting:  yes I think this happens even if it is created by arc and probably the fluctuating 'plasma'  and this is why a full wave bridge with a HV puffer cap could be used because the didode bridge can 'steer' any spike created across the secondaries into the capacitor.

rgds,  Gyula

[woopy]

Hi Gyula

thank's very much for all your info

Today i have tried a lot of different config and included  some HV cap and FWB rectifier as per your proposals, which give me some other ideas

That's how i think a forum must go, a share of different ideas and practical usefull or theorical relevant propsals.

Not able tonight to make a summary

have to go on the experiments to clear up my mind

but anyway , this Sergdo toroid is really puzzling

good night at all


laurent