Selfrunning cold electricity circuit from Dr.Stiffler

[fritz]

@All

BTW:

I would be careful on upscaling those experiments
to some degree.....
Finally some guys from the fcc will show up and take
everything including the solder iron.

If you operate an rf transmitter you should at least
know the frequency and fieldstrength you are emitting...
Even a radio amateur isnt allowed to transmit on any
frequency.

Maybe your neighbour already freaks out because he
gets evp messages from his radio.....

be careful !

[amigo]

I'll reply backwards in the order...

@fritz

That's a good point but I do not have a field strength meter, can I build one quick and cheap? Based on my scope data I see that the operating frequency is between 1 and 2 MHz (this big range is because I keep playing with those caps in the oscillator hoping to reduce the source current by raising the frequency)

I had it going at 2MHz at one point and I believe I had it down to 11mA use on the whole setup (100x 5mm + 42x 10mm LEDs). But I cannot confirm that yet, I will have to re-run the whole thing. First I need to clear much more room on my table because working in a 2bdrm apt. is pretty tough.

@k4zep

I always look at the output of the coil's secondary for "interesting" waveforms. When the coil is not in tune I see something like negative resistance oscillations being followed by positive ones and so on (if I'm to believe the images on the bottom of this page http://www.st-andrews.ac.uk/~www_pa/Scots_Guide/RadCom/part5/page1.html). I guess if negative resistance oscillations could continue indefinitely we would have OU, or am I all wrong on this?

I still have to make me a sense coil, but I just wish I had a spectrum analyzer, because of what fritz said, and also because I feel the need to search for the scalar (longitudinal) wave component of this circuit. If there is one, it would open the door to wireless transmission of (some) power but that's just my wild guess at the moment. I think in general it would be interesting to see where else does this signal appear, and how strong.

@abassign

As you know it's difficult to get exactly the same brightness in different situation without some (sophisticated) light meter and even then it might not be true in normal environments (I'd have to have a black box basically to accurately measure light, correct?).

I will try never the less to simply connect these 100 LEDs in series to the battery and see how much current they draw, that's easy to do. Otherwise I do not have another 100 LEDs I could put side by side with these and connect those directly to the battery because I would need an exactly the same battery, too, to be on the level playing field.

I believe you have to have in mind that when the meter shows 11mA we are looking at 1,000,000+ times a second pulsed DC signal and not a direct hookup so the meter might be wrong simply because it cannot sample that kind of signal. So from where I stand, these measurements of amps are just for the shows at the moment.

@plengo

I will do the schematic soon though it's not too different. I just changed couple of components during experimentation and I am sure the electronics wizards here will be able to optimize my hack to work better for my setup.

[retrod]

@All

BTW:

I would be careful on upscaling those experiments
to some degree.....
Finally some guys from the fcc will show up and take
everything including the solder iron.

If you operate an rf transmitter you should at least
know the frequency and fieldstrength you are emitting...
Even a radio amateur isnt allowed to transmit on any
frequency.

Maybe your neighbour already freaks out because he
gets evp messages from his radio.....

be careful !

Have you built the circuit? I have a field strength meter and the meter drops to background at three feet from the circuit. There is nothing to fear here from the FCC or your neighbors. Be careful to shield your eyes from the high intensity of the LED's. The health effects of 'cold electricity' are as of yet unknown, you may wish to limit your exposure or maintain a five foot safety zone during operation of the circuit when you are testing it.
Yes, be careful till we learn more, not fearful,

Dave

[scraven]

simplistic idea - Very low power motor's speed adjusted to match circuits resonance varying the high potential difference provided by the (very tall) Aerial.

[amigo]

Here are more photos of my hack.

I am using the "standard" core of about 710uH in secondary while primary has 8 turns of 22 AWG making it 4uH or so, can't exactly say. I have replaced the original transistor with BD243 (plain one, though I have a C version here I did not want to risk burning those yet ). I have a diode going from the ground rail via a 180pF cap to the base. I did this remembering that Bedini used a diode across the ground to the base to protect the transistor from BEMF, but maybe this is just redundant in this case, not sure. Or maybe nobody in their right mind would connect a diode and a cap in series but me.
A 350K 1/4w resistor from power rail to the base; emitter on the ground and one end of the primary to the collector. The other end of the collector is on the power rail. Also, there's a 1.1uH generic choke feeding the secondary, which ends are in this case reversed (as seen in the photo).
Each side has 50x 5mm 55,000mcd LEDs in series connected via diodes to the common feed rail on either ends of the LEDs.

The small board has 14x 10mm 130,000mcd LEDs in series and diodes on both ends connected to the common feed rail. These small boards are connected in series so that one input goes on one side and output of the other side of the common rail, even though I am not sure if that is crucial, you could simply daisy chain from the same spot.

Lastly, the scope shot of the circuit running with only 100 LEDs connected. For some reason the values are different than last night, HV output is lower for that matter, possibly because I did not connect the other 42 large LEDs in, or for some other (unknown to me) reason. My scope's probe is x100, since I do not fancy some HV killing my (recently acquired) THS 720