Joule Thief

[Pirate88179]

Mark:

Excellent find.  That is amazing.

Bill

[innovation_station]

crystals ... ya say ... 

why dont you go find 1 from an old video card ...  touch it ... see if it will charge your cap ... 


i tryed posting SOME OF MY CRYSTAL RINGS ...  THEY TURN OFF MY SCREEN!!!!!!!

HUMMMMM 

w

[jeanna]

Making a jt on a piezo crystal !!!!

I am not sure about a peizo core, but it sure is interesting.

I want to share this related bit with you.
Last summer inquorate suggested to bodkins that snapping a peizo lighter might have an effect on his earth battery.
I immediately grabbed a stubblefield coil and wired it centertapped ... connected the secondary wires to the scope.
And watched what happened when I snapped the peizo lighter.

I watched an initial spike or two, then there was a pause,
then another one and pause,
followed by another spike.
All from only one snap!

I took scope shots, but the lighting was a glare that day and I know how people hate that, so I never posted it, but it IS a reasonable direction. (although I am not sure it should be the core).

Great suggestion, great thinking

jeanna

[PaulLowrance]

Obviously , you are an expert when it comes to the jt.

It's not my jt. It's gadgetmalls jt circuit. gadgetmall made a huge claim, I replicated it using all the same parts except the core, and it was 55% efficient. gadgetmall said to use high permeability core, which is what I used. Anyhow, hours ago I ordered the exact core gadgetmall recommends, and we'll see what that does.

[innovation_station]

i have a bunch of old cb radio crystals ..  i was gonna make a ring with em ...  and squeeze with an electro magnet...


i know the results ... 

j  just like your lighter ...  what do you do to the crystal  as you push the button ... apply pressure to the crystal .. it  releases re in a ZAP type a form ..  you get the same rf   as banging 2 crystals togather ...

my designes use the colpase to SQUEEZE THE CRYSTAL....

ist!