Negative resistance via pyroclay.com material ?

[armagdn03]

Okay, walked over to the enamel shop and scooped up about 3 pounds of free silica dust. I think it is white, so it might have some titanium dioxide in it, but im sure its mostly silica. I will attempt to create some beads tonight and ill report what I find. Ill follow the brief description of how you made them, and try to replicate.

Do you have any tips or suggestions on your process for making them? seemed that you were making them on a fuse? any reason in particular?

[Earl]

Hi RadiantEnRg,

Wanted to tell you how much I enjoy your enthusiastic posts.

I've attached a schematic of your rev-ing up motor test and would like to know if this is correct?

Is the polarity of the power supply or motor important?

Does the bead itself conduct enough electricity to start a spark, or do you have to start the spark by touching metal to metal and then move the arc over the bead?  Does the bead during the test get hot enough to remelt and become liquid again - or does it stay a glass pellet?

Is the arc actually inside the pyroglass bead?  Does its color during the arcing tell you anything?

Regards, Earl

[armagdn03]

From what I understand you are correct Earl, but the part we need to look at is the power supply, I have a "new" signal generator that can do DC bias, so I should be able to reproduce this quite easily, I think if we have two people reporting, it may become more clear.

[hartiberlin]

I've attached a schematic of your rev-ing up motor test and would like to know if this is correct?

Regards, Earl

Hi Earl,
many thanks for the drawing.

I guess he still used also  in series with the motor the primary of his transformer
sometimes, if I am not wrong ??

Hi RandiantNRG, could you please us more ?
Thanks.

[armagdn03]

Okay, got home, took out the silica, a 5kv cap, a 350kv stun gun, dc power supply, and went about trying to make a bead

I hooked the stun gun up to the power supply and used that to pulse charge the cap. I was going to about 300-500 volts for the discharges
and might I say that even at this voltage, this is very nerve racking work, even if you know the bang is comming its still surprising. Anyways, I seemed to be corroding the metal contacts, but no silica layer was building up. I also tried to use the stun gun directly, but the ion wind kept doin strange that made it hard to manage.

Long story short, no success so far. but I do think that this process will yield an electret, or a polerized dielectric (not strictly speeking).

would you mind sharing a little more on your process for making the beads?