Joule Thief

[resonanceman]

I have my new MOT
I  would say  it is at least 3 times the size of my old one

Because of that  I think the only way to hook it up  is to use the new one as  the JT coils .... and   the pld  one  second .
The size difference is enough that  I think that the new one would act as a choke  if  I used it second .

I will  try to  post a picture or  2 later  once  I get   something going .


I am not  going to try to measure the  voltage .......   I  fried part of  my meter with the  first MOT   I would like to keep the  rest of my meter intact .

gary

[jeanna]

@Gadget
and anyone else who wants to to answer it,

Since we are not using watts to heat the fluoro tube, and we are stimulating the phosphorescence of the tube to react to the 450 volts at over ??kHz, then what is causing the difficulty in getting the longer ones to light up?

I am not saying it even is more difficult. I have only 2 tubes, a 7w and a 15w and if I can light the 7w I can also light the 15w.
Either one lights at less than full mains brilliance, and the bigger one casts more light than the smaller one. So the total light from the bigger one is more than from the smaller.

These are subjective observations, of course.

So, I guess, I should be asking this Q? first.
Is it true that it is harder to light a bigger tube than it is to light a smaller one?

The next Q? is ...what is the limit?

next Q? How much of what elements are needed to light the tube? (xee has said that 450volts is the minimum, and I think he is correct. Now, is there also a frequency minimum? and then, is there a combination minimum?

I decided to time the tube today, because I will be around later this evening to watch how long the AA can keep it on.

thank you,

jeanna

[Pirate88179]

@Gadget
and anyone else who wants to to answer it,

Since we are not using watts to heat the fluoro tube, and we are stimulating the phosphorescence of the tube to react to the 450 volts at over ??kHz, then what is causing the difficulty in getting the longer ones to light up?

I am not saying it even is more difficult. I have only 2 tubes, a 7w and a 15w and if I can light the 7w I can also light the 15w.
Either one lights at less than full mains brilliance, and the bigger one casts more light than the smaller one. So the total light from the bigger one is more than from the smaller.

These are subjective observations, of course.

So, I guess, I should be asking this Q? first.
Is it true that it is harder to light a bigger tube than it is to light a smaller one?

The next Q? is ...what is the limit?

next Q? How much of what elements are needed to light the tube? (xee has said that 450volts is the minimum, and I think he is correct. Now, is there also a frequency minimum? and then, is there a combination minimum?

I decided to time the tube today, because I will be around later this evening to watch how long the AA can keep it on.

thank you,

jeanna

Jeanna:

Way back when I first saw Josepino's Fuji mod's and tried them, I discovered something which I have posted way, way back somewhere.  Even Jose said on his site that this will light a 4 watt tube, but no more.  Well, my mod is a little different from Jose's and I found that it lights the 4 watt just fine.  Just for the heck of it, I bought a 15 wat tube, and yes, it lit that even brighter.  So, I went out an got a new 48" tube, and that was even brighter still.  I then bought another 48" tube and hooked the 2 of them up to the Fuji and....even brighter still.  All of this is documented chronologically on my earlier youtube vids. (See youtube videos)

what does this mean?  I don't know.  Other than to say if you have a hand wound toroid that lights a 4 watt tube, try a 15 (which you did) and then try a 48 and then two 48's and see what happens....you might be pleasently surprised. (As I was)

I take it to mean that the mostly volts from the Fuji are liked better by more gas area (since we are not using the filiment as Gadget pointed out to us) and therefore, the more gas area (bigger, longer tubes) the better they light.

I can only report what I have seen and done and guess about the why.  But, it is something to note.

Bill

[Pirate88179]

To Jim and Thaelin:

Thanks to you guys, and the others, for pointing out the potential (no pun intended) dangers of the MOT.  This is exactly why I have not fooled with one as of yet.  In my experiments now, it only hurts, and I know it is going to hurt, and I am really careful and yet.....zap!

As Clint Eastwood said (In a dirty Harry movie) "A man's got to know his limitations".  Right now, I know that no matter how careful I am, I may still get zapped by the MOT so I am staying away from it for now.

Thank you all for pointing out the safety issues for everyone here.

Pirate's Number One Rule for Overunity Research:  To discover overunity, you still have to be alive.

Bill

[jeanna]

Jeanna:

... Just for the heck of it, I bought a 15 wat tube, and yes, it lit that even brighter.  So, I went out an got a new 48" tube, and that was even brighter still.  I then bought another 48" tube and hooked the 2 of them up to the Fuji and....even brighter still.  All of this is documented chronologically on my earlier youtube vids. (See youtube videos)
...

... and therefore, the more gas area (bigger, longer tubes) the better they light.

I can only report what I have seen and done and guess about the why.  But, it is something to note.

Bill

Hi Bill,
I am glad to see you today.

Yes, and of course it was inspiration from your experiments that got me to try this too.

I wonder if it is area of phosphorescence on the surface of the glass, or if it is (as you are saying) the amount of gas.

Tell me, is it "easier" for you to light up the longer ones? The subjective thing I am asking is does it seem to go right on and faster? My smaller one is a little tougher to start than the bigger one. The bigger one is a huge amount of surface area more and even more huge amount more gas to light up, for no more effort than to get the coil going.

This is really a terrific thing.

Thank you,

Are the storms over for a while?

jeanna