IST'S JOULE THIEF HEATER UNITS

[jeanna]

You're welcome dreamtb,
I had to describe the pap-imi because what was done there was to make thin high pulses in order to AVOID creating heat in the body. The heat on the probe happened anyway, but it was the heat in the body that was being prevented by the thin high pulses.

With the joule thief, we are learning that thin high pulses are making good and usable amounts of power... as long as we do not try to use the power in a high amperage mode as in resistive heating.
I think we must be very clever here.

I do not say I know what we must do, but it seems that the eddy currents which are unwanted side effects of induction in a spark-gap device might be able to provide heat.

Not by running high amperage but by making a spark of high voltage. And making it frequently so the metal does not have time to cool down.

Maybe it is a good idea to look at luc's threads again with an eye to heat production.
Didn't Luc have a problem with the magnet fusing to the rod? The magnet might make a difference. I certainly does raise the frequency in a joule thief circuit, even if it does lower the voltage.

Anyway, I saw ist making sparks that heated up his carbon rods.

We COULD start by setting up some sparking devices from the JTC and watch the amps draw in relation to the heat produced.
V:heat
V+A:heat
V+magnet:heat
V+A+magnet:heat.

That kind of preliminary information could set us off in the right direction.

I imagine we could measure the heat by measuring the temperature of water containing the probe end.
Maybe there is a standard way to do this...I betcha there is.

jeanna

edit

reading on a EMP pulse generator with 140khz, 2inch ring with 10-30 windings would disable electronic equipment around it at about 5inches. Turning almost any metal object/part in it's range into a radiating antenna. The more power you put in the greater the radius/power. I always wondered if you encircle it with dipoles if you could keep a constant charge on the radiating antennas with a tuned pickup coil in the center to use as power tap. Almost like Don Smith's device but with a EMP burst in the center.

Yup,
I think this is along the same idea.

short hi V pulse
cheap to make
shocks the metal and makes it hot.
j

[infringer]

No I will not be building the same unit...

I have a new solar heater idea I will be building it could be a very nice addition to any home if it works as my mind assumes it will I am still struggling with two other projects to get done and fall and winter are closing in fast.

[resonanceman]

for this unit this is what is needed ... 

1 tv yoke feroite core ...

ill probally use a computer power supply for the source ...  not sure yet ...

its just a bigger jt ... thats it thats all ....  the heater does not care ..  it is a resistive load ...

IST

I still can't watch  videos

I am interested in  making a heater

Can you explain  what goes on in the video  ?

I have a TV yoke and a few monitors if I need another
I have a 12V  TIP3055 setup for  powering it .....

Do you use the  original windings on the yoke?

I have not tried  the yoke as a JT yet.
I  have no  idea how the  wires on the yoke are configured

gary

[innovation_station]

this unit was not designed to operate like the jt's do we are currently working on ..

this is verry much the arc reactor ..

but used as a heat source ... agin stage 2 operation on this unit as well

banging larger current all else the same

do not touch the out put ...

i would rewind the core and use heavy gage wire .. this idea was to heat the carbon rod .. or element 

but useing 2v or there bouts and a bit of grunt !  you do not need to rectify output for heat!

it is basically a dead short to the rod ..

ist!

but this has sparks so it is not the best choise .. it needs more work .. 

im still sanding doing flooring that kind a thing i still have not unpacked my things from my move ..

this will take place soon!

hang in there bro !  your up verry soon ! 

[resonanceman]

this unit was not designed to operate like the jt's do we are currently working on ..

this is verry much the arc reactor ..

but used as a heat source ... agin stage 2 operation on this unit as well

banging larger current all else the same

do not touch the out put ...

i would rewind the core and use heavy gage wire .. this idea was to heat the carbon rod .. or element 

but useing 2v or there bouts and a bit of grunt !  you do not need to rectify output for heat!

it is basically a dead short to the rod ..

ist!

but this has sparks so it is not the best choise .. it needs more work .. 

im still sanding doing flooring that kind a thing i still have not unpacked my things from my move ..

this will take place soon!

hang in there bro !  your up verry soon ! 

Its  your baby .......so I will wait for  more details .

I was looking at the yoke core .
It is kind of a funny shape .
at first I thought that the shape might  be a disadvantage .
Then I realised  that  you can probably  stack several of these cores together ( before  you wrap ) if you need more power

gary