Joule Thief

[jeanna]

voltage reading or ohm reading ?
for ohms, reversing the polarity might help. 

Both. Either.

I think once you are within the circuit something is going on that is not well described.  What works about using the resistor at the battery is that the circuit cannot confound it.

Thank you for your suggestion.

@Sparks,

I was thinking of a fishbowl. Something that would heat up like a greenhouse for the same reasons. Maybe it would be worth a try. I think walmart has a cheap aquarium. I have 5 leds that are IR.

I don't have much more room in this house, however. 

@Bill,
I doubt if a regular blender would work, since it was designed as a standard (i.e. high amp) motor. I am thinking motors could be redefined to use high frequency low amperage.

I bet there is something somewhere that N Tesla wrote that might give some clues. I think there are Tesla 'scholars' here who might put their thoughts to this problem. (only if they want to, of course...)

@ Gadgetmail

cool earth battery!!  2 joule thiefs... wow.

So, is that 2 jts in series?

How do you put them in series? I am still not sure.

Thank you,

jeanna

[gadgetmall]

@jeanna
          They are two seperate Jt's and the power input is  parallel . I just hooked one up it lit and then put the other one on the same source and it lit also . the first one dimmed a little . Cool . and yea its cold here too in Nc   

[sparks]

    For driving a motor with hf high voltage you have to use a capacitor and diode.  The motor has to be of high impedance so it will not respond to the highfrequency pulsing.  This way the capacitor charges up and the dc component that is building up on the capacitor finally reaches a level that the motor responds to.  Meanwhile your pulsing is still going to the capacitor. 

   It goes battery to oscillator to diode to motor to capacitor to motor to common.
In other words hook up the capacitor and motor in parallel and then the output from the julethief to these leads.

[nievesoliveras]

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@ Jesus:

Thank you.  Yes, this is still the original AA battery that came in the camera.  It is not rechargeable.  I have been using it for every experiment and to show all of my friends that have stopped by for the past month and a half.  It is still alive and kicking.  I guess I should measure the battery to see what is left on it.  I will do that when I get a chance.

Bill

That is a great circuit. The problem is that it is too dificult to obtain.

Jesus

[innovation_station]

yes well

im a tesla fan 

lol

well i saw a vid on youtube oh a week or so ago.... 

some one has done just this ....

taken a jt powered 25 leds and a pulse motor lol that allows you to constantally charge the cap wile useing it 

link ...  http://www.youtube.com/watch?v=JPiTorYYlAU 

congrats to the builder    i had to add 1 more vid from this builder as it kickes ass!

http://www.youtube.com/watch?v=RCIjIMDsGVs&feature=channel

ist!

what do you all think about a collector winding around the outside of the last vid     also ...

if you were to do this ...  and it was square ...  lets just say i have blowen many FETS when i apply a neo magnet to the conner   

kinda right where those four rotors run