Joule Thief

[jeanna]

No LEDs on problem

You should ask the sheep if it is a problem! 

This might be a "loading" of the circuit while your scope probe is in the circuit.

How long does that take? It goes on for many minutes. ..

put a 10meghome resistor between the probe tip and the circuit.

you mean between the probe tip and the clip. I will try that tomorrow.

I do think something odd happens with coils that are wound first up then down.
It is what Nathan Stubblefield did too.
And this MKx design is the same kind of caduceus winding with a secondary.

I do not remember JLN labs testing their caduceus coils with secondary coils. I should have a look.

Thanks for these suggestions.

BTW I like your chasing leds. You say they have been running on one AA for 10 weeks?

could you start with an earth battery?

jeanna

[electricme]

@Jeanna
I think the barr barr's didn't mind the LED coat.

BTW I like your chasing leds. You say they have been running on one AA for 10 weeks?

could you start with an earth battery?

No I ddin't say the LEDs were running on 1 AA battery, for 10 weeks, no this was a kitt I bought from Jaycar in Toowoomba, about 100K's away from me, it was designed for 12v DC by someone else.It is hooked up to a 12v Car battery.

I am only displaying this to show people the "principle" (which works)  I want to use with my own circuit. 

Hmm earth battery powered unit, mabe one day, not yet though.

@all,
Could someone post a photo of one of these "blue" torids that don't seem to want to work.


@TheNOP,
Don't worry, dont cry. dont be sad    my friend about me not using your idea (MK8), I want to get my idea working first, then I will try your idea too.

HAPPY EASTER ALL for 2009

hooroo

jim

[Pirate88179]

Ah, the earth battery comes up again.  Gadget already ran his JT from the EB and soon, I will be attempting the same.  Jeanna, maybe all that work and research we did a while back will pay off for us soon?

Bill

[Mk1]

@electicme

It would not take long to make a mk8 or 10 for that mater , am it is what you are looking for , Nop knows .
I also do , its simple and you have 2 green toroid , they are from comun mode choke like my green gem toroid.

This is the best toroid to my knowledge , aren't they 1 inch ?

you need 30 gauge wire 16 times 30 inch should do .

But i know you like to take your own way.

So no problem here, more wire is simple and effective .I doesn't mean you can't do the same with multiple pickups on multiple toroid , its just more cap charged, but at a lesser cost .

Mark

[electricme]

@electicme
I also do , its simple and you have 2 green toroid , they are from comun mode choke like my green gem toroid.
This is the best toroid to my knowledge , aren't they 1 inch ?
Mark

Hi Mark, are these the torids you are referring to?

Thanks for the advice, I do need it from time to time, I keep forgetting things, gulp,
could you point me to the best MK8 and MK10 link so I can take a looksee please.

jim

@all,
I need a visual perspective on wire gages.
could someone post a photo of some wire with a word and arrow pointing to the wire, saying This Is a 30 gauge wire, etc etc

Here is a little chapp I found some time ago, cute isn't he ROFL ha ha


jim