Joule Thief

[nievesoliveras]

@jesus

I will have more answers today on the feedback, that said you forgot one coil connection option there 4 not 3.

Mark

http://www.alan.melia.btinternet.co.uk/toroids.htm

Thank you @mk1 !

I am still studying my first electronic course now.

Here is the promised Graphic:

Jesus

[Mk1]

@jesus

The only real answer for coil phasing is to test the 4 option get the highest voltage that charge cap without the jt led flikering . That is the first step , it can vary depending on winding technique .


Mark

[nievesoliveras]

Thanks xee2,
No, it doesn't confuse me.

I want to be able to measure the oscillations that are occurring on the secondary. I want to be sure I am not introducing anything from the bjt, so I don't want to use the bat ends or the transistor legs or the resistor etc.

I just cannot think of what to anchor this clip to. (except another oscillating wire!  )

Thank you for this help.
===
@Jesus,

When you come out of the center of the toroid and go around are you going to the left or the right from the first?

I think it introduces a very confusing element here. And, please remember this is not a straight rod. It is a washer. So, it is circular and its cross section is also circular. I think this is a lot of the problem, and I don't think we should add to it.

Here is a modified 'blank' from the drawing Mark made of the MK2. I changed the numbers so that each wire end has a new number. What do you think? (other than it is not pretty!)

thank you,

jeanna

I was confused. Now I am more confused.
But that is good, because this time we will solve our confusion.

Jesus

[nievesoliveras]

@jesus

The only real answer for coil phasing is to test the 4 option get the highest voltage that charge cap without the jt led flikering . That is the first step , it can vary depending on winding technique .

Mark

You mean, making the toroid with the pickups and trying the four connection variations till we get the desired result.
I think that for a person coming new to the site is not clear and easy to replicate.

It would be better to choose one of the variations that is exactly the same as the one you are using in order to replicate and get the same results.

Jesus

[xee2]

@ nievesoliveras

Nice drawings.