FBCS-Series, A Lighter Touch--Zero Input Power

[MeggerMan]

Hi Spherenot,

Yes, here it is, see photo below.
If you earth the +ve side of the scope input you can get a 1V peak-to-peak.
On 2uS division you get a pulse followed by a decreasing amplitude of pulses for about 3 divisions.
If you apply a 1K resistor across the input the amplitude goes down, but not that much.

If I sandwich normal CDs either side the amplitude is not as strong.
You are better off with an open coil. I think the aluminum introduces unwanted coil capacitance.

I think if connect several together in series I may be able to light an LED.
It does work though, very impressive.

The scope shot is 0.2V /div so thats about 0.9 V


Regards

Rob

[Spherenot]

Yes, here it is, see photo below.

Okay, I will not be posting the picture of my device with the top CD broken off.  Your picture is much more pleasing to the eye. 

kingrs: Place the device between your palms.  Do you see an amplitude increase as well?

One more thing.  When I place my device on a steel slide-out surface of my old steel desk, I see an irregular waveform pattern with a lower amplitude and a higher frequency.

Your waveform does not look like a smooth sine wave.  Try placing the unit on your knee.  Put your hand on top.  Do you get a higher amplitude sine wave?

When I do this my amplitude jumps to 50 mV peak-to-peak.  I did not mention this larger value in my initial post because of my human interference.  When I place the unit away from the steel desk and  away from me I get a steady 10 mV.

What strange things are you seeing?

What frequency are you getting with your 'body' antenna?

[pucella]

I was experimenting with pancake coil (tesla patent)
I am using copper tape like:
http://cgi.ebay.co.uk/Guitar-pickup-self-adhesive-copper-foil-tape-sheilding_W0QQitemZ270076479422QQihZ017QQcategoryZ42455QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
It is easy to play with.
Amazing increase of magnetic field from same numbers of turns.
I will try thre coils to connect instead of two.
Best George

[Spherenot]

(5280 feet/mile) * (186,282 miles/second) / (1.43x10^6 cycles/second) = 688 foot cycles

I want to make a new unit using 688 feet of wire, which I calculate to be the wavelength of 1.43 MHz above.

But, as usual, I get these ideas on Saturday night.  Everything is closed on Sunday.  I have 200 feet of 30 ga. mag-wire available tonight.  I am thinking of making FBCS-30-4W.  The 4W stands for 1/4 wavelength of 688 / 4 = 172 feet.

I wish I had two spools of this wire so I could fix them both overhead on a rod and feed then to the pancake as needed.  I may not be making a new coil this weekend until I get me some more spools-o-wire. 

Have fun.  Good night.

[argona369]

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