The Master Of Magnetics "Steven Mark"

[starcruiser]

i have seen a device once it was two iron like standing things with a spark between them.
these things were in a V shape from each other.
now with low power the spark was low in the V and little but as this guy pushes power up the spark would move up and get bigger.
so the more power the point of discharge true the air was moving upwards.
i find that kinda weird because logical the spark should take the shortest way and that is below in a V shape.

I believe that effect is caused by ionization of the air molecules which makes it easier to bridge the gap and the spark rises due to thermal heating.


Regards

Carl

[gn0stik]

i have seen a device once it was two iron like standing things with a spark between them.
these things were in a V shape from each other.
now with low power the spark was low in the V and little but as this guy pushes power up the spark would move up and get bigger.
so the more power the point of discharge true the air was moving upwards.
i find that kinda weird because logical the spark should take the shortest way and that is below in a V shape.

This device is called a "jacobs ladder", another Tesla invention. The reason the arc moves upward is because it's powered in very rapid pulses of electricity. The heat of the last strike creates more resistance in the same spot, so it finds the spot with the next least resistance, which is farther up the gap, this along with ionization are the cause.. When the lower area cools enough the spark begins at the bottom again. At least this is my understanding of it.

Regards.
Rich

Edit: oops looks like carl got to it before I did.

[Dingus Mungus]

i have seen a device once it was two iron like standing things with a spark between them.
these things were in a V shape from each other.
now with low power the spark was low in the V and little but as this guy pushes power up the spark would move up and get bigger.
so the more power the point of discharge true the air was moving upwards.
i find that kinda weird because logical the spark should take the shortest way and that is below in a V shape.

The device I believe you are descibing is a "jacobs ladder" the reason the arc moves up is the air acts as a conducter a byproduct of this effect is heating of the air which makes it a better conducter but the hot air rises. With enough voltage the arc will jump from the widest gap at the top lose its ionized heat pocket and reset to the closest arc point to start again.

[starcruiser]

gn0stik,

I just couldn't recall the name of the device, thanks


Carl

[hartiberlin]

Just out of interest I have tried pulsing a coil from different ends and the wave shape is quite different, why is this?



Regards,


Dave.

Dave, it depends also of the emitter potential !
If you pulse the transistor ALWAYS between emitter and
basis this should be equal !

Try it as you have a floating scope your groundlines
should not influence..

P.S: Also only attach a picture.
You don?t need to press the imagelink in your posting,
just attach the file, otherwise there will be a missing picture be displayed which is
confusing...