Captret - Capacitor and Electret

[Trastos]

are you talking about this?
http://www.youtube.com/watch?v=KQJZs6tlj_Y

Yes, it is that example but the procedure I described.

If you apply a low pressure in the first shock, when performing the second is always very strong.

PD: 2+ Hours: 8.38 V and Decent Bright but not Full.

[plengo]

I think I have some sort of success. Very impressive how this thing works. Not ALL caps works. You have to play with some until you find the correct one.

Some videos of my experiments: http://www.youtube.com/watch?v=JvS1CHmpT98  and  http://www.youtube.com/watch?v=G90kA03WW7U

Fausto.

[Zooty]

Just a couple more notes on observations with the high power LED.  Battery voltage topped out at 17.86 after maybe 20 minutes running.  When I disconnected the setup it returned to 18.01 volts.  The LED was dimmer near the end so I decided to check the alligator clip on the top of the Cap.  It was held  down with electrical tape.  I removed the tape and noted an interesting effect.  When the clip was in good contact with the top the LED was fairly dim now.  But when I pushed down on the clip the harder I pushed the brighter it got.  Both the aluminum on top of the Cap and the clip were clean.  So good contact was made even with light pressure but additional pressure seemed to provide a linear increase in brightness.  i.e. more pressure=brighter over quite a range  ??

I found this out too but im sure its to do with the plates moving inside the cap

[Trastos]

Hi,

22 Hours - 8.41V and Decent Bright but not Full.

[majkl]

Hi!
This is not about captret... but if you can help me...
I try to replicate this Dr. Stiffler's experiment. -- see the diagram and table with his results.
I have electrolytic capacitor 100uF/100V and Avramenko plug with 4 diodes 1N4148.
My result after 40 hours is that a capacitor is charging but very slowly...

time:
0 hours -- cap: 0.343 V
6 hours -- cap: 0.388 V
16 hours -- cap: 0.436 V
40 hours -- cap: 0.522 V

Can anybody explain me why my capacitor is not charging same speed as Dr. Stiffler's capacitor?
Do I need more diodes in series? Why is more diodes better?
Thanks

--michael