Joule Thief

[Mannix]

Hey Guys ..You have all  been doing a fantastic job here ..please look at the Steven marks secret thread...


It may be useful to try his switching method

[freepow]

  I'm back with my scope shot, volts set at 20 per division, tive div set to 1 us, and scope set on AC.
hope this helps !
What does everyone think about this spike ??

[freepow]

My scope shot

[gadgetmall]

Iotayodi

Your story is interesting and exciting, but...

we are NOT dealing with wall current. 50 volts from the wall is not what we are talking about cuz when the wall goes through your body to the ground it is entirely different from touching the wires.

I tried to stop an electrician from changing the wires while hot and he explained that as long as he did it one handed he would be ok.
I did not watch actually. I did not like the idea because a burn is possible.
BUT that might be so for someone who is using a frequency generating machine that is plugged into the wall as stprue is,
Is that the same for you?
Are you also not using a 1.2volt battery?

But a camera will NOT NOT NOT kill you.
Nothing can cause fibrillation unless it is crossing the chest, because the signal of the heart is in the chest and not effected by what happens to the hand. ... but, of course,  the spark can be hot and the wall can burn you.

---
On the q about transformers, I am using pulsed dc at 133khz and it did not transform.
Gary also mentioned this, but no one has made an explanation.

Is this not a curious thing?
Is there any other time this might happen?

jeanna

Hi Jeanna and all . I decided to spend a few hours glancing at post on wap2 and saw yours . I would have to Disagree that a camera will not kill you . . As you know there is a 350- 400 volt capacitor in there capable of throwing out  several hundred amps in a split second . this is enuff to stop a heart . anyone who already has heart problems and also anyone who has an electronic Device in there chest will more than likely die if those connections are touched while Charged . They are VERY DANGERIOUS and will blow test equipment and burn you and hurt you . In My opinion they are not to be messed with unless you are experienced with the effects of high amperage high volts and know the percaussions . These camera circiuts produce the same or  more than a Difibulator and its  very possible if lay the right fingers across a charged camera it might kill you .A difib device is basically a camera circuit that charges a capacitor > remember to Shout CLEAR before they discharge one as some one with there hand on the person could die as well .  Just my two cents since i have seen screwdrivers blow to bits shorting out a camera also the diffib machine if you notice has the high pictched whine and has to charge up before discharging the Dc Blast from thie capacitors to paddles or electrodes so there is a wait period before its effective just like a camera flasher circuit .

Albert
aka gadget

[xee2]

@ freepow

I'm back with my scope shot, volts set at 20 per division, tive div set to 1 us, and scope set on AC.
hope this helps !
What does everyone think about this spike ??

Nice photos. Thanks for posting them. Is this the output from the pickup coil or is it the output from the collector coil?

This is about what I see when I measure the positive and negative peak voltages from the pickup coil - mostly positive (or negative, depending on how the voltmeter leads are connected) and only a very small amount of negative voltage. Your measurement leads seem to be reversed from the way mine are.