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quote betanzer

All of those old patents were always carbon and zinc and one mentioned "excellent" magnesium

I asked before of the composition off your fire starter blocks.

Camp fire starter.
Commonly used fire starter: You carve off some shavings of magnesium from the block using your hunting knife, then strike the flint with the back of the knife to ignite the shavings. I removed the striker bar (see Cerium for a video of this bar being sparked with a knife). This one was purchased from Walmart in April 2002.
How pure is the magnesium you get at Walmart? Analysis by x-ray fluorescence spectroscopy at the Center for Microanalysis of Materials, University of Illinois (partially supported by the U.S. Department of Energy under grant DEFG02-91-ER45439) gives the following composition:
97.24% Magnesium
1.21% Zinc
1.11% Manganese
0.44% Iron
So, not too bad. It's not reagent grade, but it's decent technical grade magnesium.
Source: Walmart
Contributor: Theodore Gray
Acquired: 15 April, 2002
Price: $4
Size: 3"
Purity: 97.2%

or  http://www.freepatentsonline.com/4770669.html

Just out of interest
http://www.periodictable.com/Elements/058/index.html

There IMHO has to be some reference through posts as to purity of materials and a reference to solid state components used. ( I would love, to have a knowledge of these let alone how vacuum tubes did the same thing but produced as far as radios and turntables are concerned a far richer and to me true sound.

I am still trying to find out the magnesium content of mag wheels, the wheel well gives one a huge area to wind a coil.

Den

Quote
I am still trying to find out the magnesium content of mag wheels, the wheel well gives one a huge area to wind a coil.

Den

Den,
Do you have a rim? Why don't you just try it out? Maybe it doesn't matter too much how much mg it has.

I just tested my second jule thief winding, since I just made a case for A K to do it, and I found just hanging from my hand, it delivers 0.014vdc-0.021vdc pretty amazing for nuthin!

I'm gonna finish this second joule thief but I am thinking after I wind a nail and a couple of other dozen things that have been suggested here, I will look around for some bigger round metal things with holes in the middle so I can wind them and see. it might not be a bad thing, if it is magnetizable, either.

jeanna

jenna

unfotunatley only have access to a garden plot 4ftx 3 in the wrong direction. I am tapping into a mango tree at present with a screwdriver 3/16 shaft dia and a woven wire brass mesh 4 " into ground 2 '" away . Very confined.

I get 0.9 acv. and unfortunately have wiped out record of dvc. no ma

will be moving in 6 weeks with more room but will take me more time to catch up and hopefully be of more assistance.

Den

Here is a picture of my new device.  I just need to solder some leads and connectors and I can try it out.

Bill

I am considering wrapping the copper wire, where it is exposed, with electrical tape.  This would make it easier to clean once I dig it up again.  Had I used insulated wire, this would be the same in some repsects, right?  Anyone have any thoughts on this?  I did a continuity test on every point I could think of and my connections are all 100% between the wires, blocks, and spikes.

Bill