Joule Thief

[Pirate88179]

Al:

Thanks, that is good news.  I just can't remember what site I read that on about the supercaps in series but I believe it was a site selling them.  They did mention that you could, BUT, you had to buy their special controller circuit or they said you would fry the caps.

I mentioned your EB kit over at energetic forum on the EB topic and folks seem very interested over there.  There is a link to your site on the EB page posted there now. (someone else posted it after I mentioned it)
I will let you know about the supercap, just a few more jobs to complete and I will be fine this month. (whew!)

@Xee2:

Great job on your JT!!!  It also looks really cool too.  That is a really good output you have and it looks like even I might be able to wind it.  Nice going.

Bill

[jeanna]

Go going Jeanna !!  .What torroid core are you using ?? goldmine 5 for 1 dollar?

Thanks Al,

No, I can't get this kind of jump with those. they are truly medium.

However, this is also from the goldmine. It is the one they call filter 2/$1.35
It barely holds the 92 turns with the 7 others. I think I was going for 100 and saw in time I wouldn't make it and it had to be 92 which is 23 each leg up down-- up down.

The limit on this one is that it is less than 1 inch diameter.

I think the reason I am not lighting the fluoro is my set up. I am not sure what needs to be done. I added a 47uF, 350V cap across the secondary leads. Maybe the cap should be in line with a what? a resistor across it? people are using a diode. Is that what I should try? If so, where?

thanks,

jeanna

[gadgetmall]

Thanks Al,

No, I can't get this kind of jump with those. they are truly medium.

However, this is also from the goldmine. It is the one they call filter 2/$1.35
It barely holds the 92 turns with the 7 others. I think I was going for 100 and saw in time I wouldn't make it and it had to be 92 which is 23 each leg up down-- up down.

The limit on this one is that it is less than 1 inch diameter.

I think the reason I am not lighting the fluoro is my set up. I am not sure what needs to be done. I added a 47uF, 350V cap across the secondary leads. Maybe the cap should be in line with a what? a resistor across it? people are using a diode. Is that what I should try? If so, where?

thanks,

jeanna

Yes a diode one one lead and a ceramic cap on the other and tie the end of the diode and cap . Alos it matters which way you put the diode and on which lead of the secondary . try until you get the highest . Do you mind posting a picture of your coil and "filter" ?

[jeanna]

OK First I took a fresh picture.

the red wired one is the filter G16214 as it comes with 2 pair winds of 19 turns each.
The next is that with the 3T4T92T on it as a MK1

then a little bare Tor-23 from allelectronics. It is too small, but it makes great little lights. When wound it is just about the diameter of a AA battery. The berry and xTree and widow were all made of this.
The last is wound like the widow but with newbie wire. It really makes a great slim jt. This gets about 50volts very reliably.

jeanna

[Artic_Knight]

@ AK...re: your Tesla Doc.

Thank you...that was very enlightening.

"The primary circuit's frequency is determined by the frequency and voltage of the source "

Would the joule thief be suitable 'source' in its present stage, or are more amps needed ?

Regards...

well with current you have to look at it in a volume standpoint i may have 1 gallon of water thats my watts, volts x amps  but now i want maximum volts so i take the water and divide it up into the smallest droplets i can. obviously i can only go so far before i run out.  more amps allows for higher volts if your trying to max that, but you will reduce the amps to make the volts and you will reduce the volts to make amps,  so it all boils down to what you want and of course there is a limit to what you can stretch it to. 

will more amps help? sure! starting with a higher voltage will too. but again what your looking at is your watts. 1 watt is good for lets just pretend 1k volts.  2 watts can get you 2k volts. you can increase the watts by either increasing the starting voltage or starting amps or both.

if we assume the volts and power supply IE 1 AA battery stays the same in all experiments then you will need to increase the amp draw to increase maximum POTENTIAL volts. what you do with it IE the transformer characteristics will determine if you reach that potential by stepping it up till you can no longer step it up.

make sense?

now he was simply defining in this posting i made that you can increase or decrease the current in this specific situation by increasing voltage. now you have to consider his application. he is trying to take a cap and when it reaches a certain voltage it will jump a spark gap created of 2 conductors that do not touch. we could use a diode in this same situation for the same purpose and when the diode reaches its breakdown voltage it will allow a jump to the other side. this will happen every time the cap has the higher voltage than what is needed.  frequency is dependent on how often this happens so voltage makes a difference for this application.