Joule Thief

[TheNOP]

since the cap has the ability to diliver more power faster i would imagine having the cap in parellel with the battery may be increasing the frequency. considering this is a self regulating curcuit IE when enough current has been built up it releases through the led its a self resetting thus it doesnt matter how much or how fast you can deliver current its allways going to max out at the same level here. but if its able to bring the curcuit to its activation point faster then perhaps its also increasing frequency?

hard for me to tell considering i dont have a scope. if someone feels up to it they could test this.

the thing you got wrong is thinking the cap have plenty of time to discharge.
it does not unless you try to make it do that.
transistors have internal resistance, transformers have variable impedance depending on how they are made and the load on it.

once a cap is charged it has no "load" effect anymore, so why should it affect the frequency once charged ?
shure, it does affect the circuit a tiny bit.
the cap can provide a burst of current that is replenished during the off time of the transistor.
the cap provide just burst, it does not discharge completly, the reality is far from that.

let say the battery does not have enough time to replenish the cap.
what will happen ?
it will only charge to a level the battery can cope with, the frequency will be the same as if no cap.

the cap in parallel with the battery do help, in 2 ways.
it provide currents burst and store back the un-used part of a backemf, if there is any.

[Pirate88179]

@ All:

Stefan posted that the threat has been removed. It was posted a little while ago on a topic about this threat.

Bill

[TheNOP]

the super188 virus use iframes to run scripting/javascript without any restrictions that normaly apply to those.

firefox is not affected since the iFrames handling code is not the same.
IE is, if scripting or javascript is enabled in "internet zone" sites.

i think MS made a patch for this a few weeks ago.

[resonanceman]

Bill

I just thought I  would put in my 2 cents in about  firefox

I switched  several years ago  after having  some problems  with  hackers .

My son  told me that most hackers  go after  people that use IE and  outlook  express .
I switched to  firefox / thunderbird  and have not had anyproblems sense .


gary

[TheNOP]

Bill

I just thought I  would put in my 2 cents in about  firefox

I switched  several years ago  after having  some problems  with  hackers .

My son  told me that most hackers  go after  people that use IE and  outlook  express .
I switched to  firefox / thunderbird  and have not had anyproblems sense .


gary

your son is right.
if i were to chose witch one to crack, i would chose the one that is the most used and its happen that it is also the one with the worst default settings.

i am using IE, but not with default settings.
and it is more secure then firefox with its default settings...
i got the payload with IE..., without getting infected.

the first part set the iFrame to load and run a javascript, "office.js".
it is still in my temp internet folder and will be deleted when i am going to close IE.

edit: nevermind, it would not be a good idea to post the payload here. 


he used hex encoding to hide the code from clear view.
one of the script is pretty clever tho.
it use an unconventional way to run an unauthorized shellexecute.