Joule Thief

[Mk1]

@Gary

Try this soft , it is the one i use for a player its called vlc player , the codec library is really extensive, it plays anything i put into it , free of charge , i installed it and never looked back.

http://www.videolan.org/vlc/

[TheNOP]

Everything has a resonance frequency and many beneficial secrets are lost to information suppression...

i agree with the first part, but not with the suppression one.

resonance is used in multiples of ways in today's applications.
from particules accelerator and some medical scanners, to more down to earth applications, like metal "fatigue" detectors, pipe leakage detectors and tuned circuits(LC, RL, RC, RLC filters).

most peoples do not not fully understand what resonance is.
me first, i do not fully.
but the informations are out there since Galileo, search for it.

it is not because you have problems finding something that it automaticly mean it is suppressed.

[Mk1]

i agree with the first part, but not with the suppression one.

resonance is used in multiples of ways in today's applications.
from particules accelerator and some medical scanners, to more down to earth applications, like metal "fatigue" detectors, pipe leakage detectors and tuned circuits(LC, RL, RC, RLC filters).

most peoples do not not fully understand what resonance is.
me first, i do not fully.
but the informations are out there since Galileo, search for it.

it is not because you have problems finding something that it automaticly mean it is suppressed.

I am so glad those are not words but i forgot to put the video so there it is http://www.youtube.com/watch?v=JDnNmLkQ3Bc&feature=channel_page

[the_big_m_in_ok]

TheNOP said:

...the higher they will charge is dictated by the diodes threshole. ...

...a general rule with caps and AC
if you don't use a diode in series with the cap(s), you should not use electrolytic capacitors.

>>@TheNOP,
Okay, thank you.  I hadn't thought of your objections, since I was going from memory of an old Internet source for my information.  You do have a point.

Now I have a circuit in mind that does involve capacitors and diodes in series with the negative cap ends together and cathodes of the diodes pointing toward each other.  The diode anodes would experience an AC signal.  Two Zeners are in parallel with the anodes at positive sides of the caps and when the voltage reaches threshold of the Zeners, the cathodes dump the cap's voltage to the positive terminal of a battery.

I can probably draw this on the keyboard in ASCII, but it would take more time than I have on this computer. 

I'll have a different computer and more time later.
Okay, time to re-edit:

                           +----------------------+
                           |                               |
                           |                               |
                   /       |        \                      |
             +---|<----+---->|----+              |
             |    /                  \      |              |        +|    |   |
             |                              |              +-------| | | | |-----+
             |   +| /            \ |+    |                          |   |    |       |
  +-->|--+-- -||----+----||----+--|<--+                                  |
  |                | \            / |                |                                  |
  |                                                   |                              -------
  |                                                   |                                 ---
  +______________  A/C_____________+                                   -
          with CEMF from JT transformer


As described above, the diodes (1N4007, etc.), are now in series with the caps and the caps themselves are in series.  Question: That they're in series, does this eliminate the negative-charge-on-the-positive-plate issue The NOP had above?    Only when the Zeners reach threshhold, do they discharge themselves to the battery.  No need fo additional diodes?  The Zeners function as quasi-diodes themselves.

NOTE, WITH POTENTIAL DISCLAIMER:
This circuit is an inspiration of imagination.  I don't have the means to test it, so I don't know if it'll work or not.  Theoretical comments/suggestions are welcome.


--Lee

[Thaelin]

   I was out for a walk today and decided to stop in to RiteAid.
I ask if they might have any of the fugi's  with no film in them.
I really got a wild look from the gal. When I explained a group of
us was doing a bit of research into using the circuit boards to
run a FL instead of a flash for use off grid. She understood and
"GAVE ME"  four of them. All the quick flash type too. 

So look out, here comes 4 more mods for FL's. Finally.

thaelin