Joule Thief

[Mk1]

@jeanna

All i am saying is that at one point , the base resistor value will not change the pickup coil voltage anymore.
I said most likely because i don't have a scope. So how can you find the sweet spot if it doesn't change the output voltage. Also the sweet spot is the best freq for the core .

I have posted many times , the directions ,but most still prefers re doing the same mistakes i have done to get my knowledge.

Like i said with 8 jt turns on my toroid , the voltage output is the same with any resistor value 1 k or 1 ohm.

I am sorry i didn't bothered explaining all my mistakes.

I may not be a scientist , or even a ee , but i still got you and many in the right direction.

By the way my walk around for getting a higher freq without having a lower resistor value (x2) worked.

Actually , i must be a really lucky guy since everything works for me.

Also , i will have access to a scope soon , would someone tell me , when i check the freq , do i have to get down to one single wave , or just make sure it stops moving to get the good reading ?

Any how , i will take a break .

I have a real ou device to finish , Yes real !

Mark

I will be back in a few weeks!
good luck!

[Pirate88179]

@ All:

Here is a quick video of my standard JT circuit powered by my new and improved earth battery:

http://www.youtube.com/watch?v=XmsDvNDTz_w

No supercaps yet, nothing fancy, just a test to show it will light an ultrabright LED (28,000 MCD)  I just grabbed one of my JT circuits that was handy and it has the ferrite bead instead of the toroid.  2N3904 Transistor and 1k resistor.  This is just the start.  It has been lit now for almost an hour.  I hope to do many experiments with this new set-up.  It should get better with time like the last EB but right now I am getting 1.8 vdc output.  I have not been able to measure the mA's yet.  I have to replace my fuse on my meter which I will do here in a bit.  I just wanted to get this first video in the can.

Bill

[gadgetmall]

Jim:

Man that panel is a great find!!!!  There is not telling what people will toss out these days.  That panel is made up of many cells (as I know you know) and it looks to me like 90% are just fine.  Heck, if it is charging your battery as it is I would just leave it that way.  That is a good sized panel.  A few more like that and it's off the grid for you mate.  My question is....what will someone down there throw out next?

Today, I am picking up a magnesium block I ordered from a local company yesterday.  It is 5 pounds!!!  I will use that with my carbon rods in the earth battery to see what I can light up using the JT technology.  The mA's output should be decent if I have it figured correctly.  We will see what happens.

Bill

Hi Bill . Man I have been busy .. Hey 5 Lb Block is Nice .. I thought of Something i have laying around . 4 of them . they are Magnesium Rims off an old Peugeot  ! They must weight 30 pounds or so . i am going to bury them this week end ... Well i haven't caught up on the post yet but saw yours and i know you will have some Ma's . I am getting 15 ma's at 1.9 volts with just a 12 inch mag rod ...  and one carbon welding rod  2 feet apart ..

@ all
I got BIG super caps for sale pretty cheap . they are normally 80 bucks .  Maxwell 650farads at 2.7 volts  55 bucks .. HUGE and they shock you at 2.7 volts . (  i felt it ) these will run a Jt for Many many days or for that fact they run leds for days and days ..  .

Gadgetmall

[jeanna]

frequency is not a substitute for amps.
frequency is use for transfering more amps in Tesla's coils since there are no core in them.
but there is also obstacles with higher frequencies and you have nailed one in your previous experiments.

page 236
"We may connect an insulated line to a source of such currents, we may pass an inappreciable current over the line, and on any point of the same we are able to obtain a heavy current, capable of fusing a thick copper wire." N Tesla

[WilbyInebriated]

@ All:

Here is a quick video of my standard JT circuit powered by my new and improved earth battery:

http://www.youtube.com/watch?v=XmsDvNDTz_w

No supercaps yet, nothing fancy, just a test to show it will light an ultrabright LED (28,000 MCD)  I just grabbed one of my JT circuits that was handy and it has the ferrite bead instead of the toroid.  2N3904 Transistor and 1k resistor.  This is just the start.  It has been lit now for almost an hour.  I hope to do many experiments with this new set-up.  It should get better with time like the last EB but right now I am getting 1.8 vdc output.  I have not been able to measure the mA's yet.  I have to replace my fuse on my meter which I will do here in a bit.  I just wanted to get this first video in the can.

Bill

nice vid!  run walkway lights at night and use a cvs to switch to charging batteries during the day!

@jeanna
yup that's what i meant. you have a scope so let us know what you find out. all i have is a scope in multisim and these little circuits don't really like the sim, too hard to figure the q on a hand wound inductor.