Joule Thief

[jeanna]

Has anyone tried a negistor oscillator in place of the toroid? ..I tired to build the 'simple' one that JL Naudin documented, but I haven't got the right components I suppose.

@Jeanna, you may be experiencing this phenomenon and not know it..  The inclusion of extraneous inductors is supposed to contribute to this effect.

I think it is funny you ask, jadaro.

It was the assertion from MK1 that these transistors I was using could act as a negistor and could be turned around that got me started on my successful multiple secondaries experiment.

I do not why you say what you do about stray inductors... so I will have to see what naudin says.

For now, I just got a new and newly discontinued (!!!!) toroid which should be a good one.

@All,
I think we need to buy up some good toroids (but sample them first) so we can get what we need.
We need a strategy.

jeanna

edit
@Stephan,
OK I will try the little green toroid I just removed from the cfl.
It would be really nice to be able to light a cfl with a little one.
I will give it a try this evening.

jeanna

[xee2]

This is a first for me. Filament bulb lit from pickup coil of JT. I am not sure if anyone else has already done this. It doesn't make much sense to do this since the bulb will light directly from the 1.5 volt battery, but it does show it can be done.

[Mannix]

I would like to add my appreciation to the research and ides exchange that has happened here.

These circuits are very interesting and just happen , to look exactly like the torrid in the FTPU and others.

I could mention that blocking oscillators are not fully understood by any body

The point is not to argue for your limits but try to expand your thinking and this thread had done that for many.
It uses simple components and regardless of wether you accept the claims as you interperet them, the power of this thread is the idea exchanges going on. Is that not a powerful thing , a delicate thing , a wonderfuL thing???

Please dont drop the ball guys , just ignore the hurtful posts and they will go away. some people only want to fight because they know of no other way , they have not yet  learned and might never do so, especially  if you drop the ball. They will just go stirring hornets nests else where.

I ve seen a few people actually build one here  some that were denyers.

Sure OU is  a big ask but nobody will get any where if you run off to patent That's the problem you see   greed . Its is what has Steven Mark in a hole 

Please reconsider continuing what has opened a few eyes to a few new things and who knows where it might lead? ..no where if you quit that's for sure

Lindsay Mannix

[innovation_station]

yes stephen ...  i have built 1 a long time ago .. as some one has my video .....  over there......

this i dont care about ...

i will try to find some old videos i made ...   

and copy it out .. 

where is pony from ... clearly canada... he has a master craft meter.... 

j

I VOTE CONTROL OF STRATIGITY  be given to you ...  cuz youz  gotz da skills   

how ever we do know how this works ...   and it is a ballanceing act ..  common ground must be reached ..  this is why i try not to pick on people ...  hard for a lion ya know espically one born on leo's power day ... 1:43 min into it ...   it make my roar .. tooo lould some times .. 

see how it unraveles ..

gadget please dont remove anything .. from its place..  it is you only security.. 

but if things do not un ravell as they should i will walk ...  as will all others that want to learn and figure it out .. correctly ..  this oly comes with hard work ... dont i know ... sheesh .. lol

any how ... 

lets keep the peace .. and learn as 1  things move along much faster and safer that way ..

plus our stuty is verry deep that way ...  perfection is not gained frome 1 single point of view

not even just 12 points of view ...   

w

[jeanna]

This is a first for me. Filament bulb lit from pickup coil of JT. I am not sure if anyone else has already done this. It doesn't make much sense to do this since the bulb will light directly from the 1.5 volt battery, but it does show it can be done.

xee2,
That is terrific.
I see the diode in your diagram.
Is that needed for the light to work?

How many of these lights will turn on with your jtc?
Battery run not mains 1.2v power supply right?
(You know I don't trust those to not leak.)
cooool

jeanna