Joule Thief

[stprue]

@Mk1 @Jeanna

Ok I'm sure I did it!

X2 style
20t up then 20 down using 26 gauge mag wire
107.7 Ohms after tuning with a 500 Ohm POT
2N3055
104vDC one side no alterations i.e. cap's for increased performance

Let me know if these readings sound right for one side?

[xee2]

@ stprue

@Mk1 @Jeanna
X2 style
20t up then 20 down using 26 gauge mag wire
107.7 Ohms after tuning with a 500 Ohm POT
2N3055
104vDC one side no alterations i.e. cap's for increased performance

Can you make another toroid that is identical except for pickup coil with just 40 turns random wrap ed for pickup coil (all going around toroid in same direction) to compare against the MK toroid. I am very curious to see how much better the MK coil is than other coils.

[jeanna]

@ jeanna

You do not need to time, just calculate.

OK,
Then what I want to know is at what point in this circuit of yours does the battery get declared dead by the fluoro light.

(I know when mine does, I am asking you for similar info)
I suspect you have not tried this.
I am surprised by your response.
You are an experimenter, and you know that the only way to find out is to try it.

thanks,

jeanna

[jeanna]

@Mk1 @Jeanna

Ok I'm sure I did it!

X2 style
20t up then 20 down using 26 gauge mag wire
107.7 Ohms after tuning with a 500 Ohm POT
2N3055
104vDC one side no alterations i.e. cap's for increased performance

Let me know if these readings sound right for one side?

This sounds possible for this stage.
The thing is this is not yet finished.

Go ahead and put both sides together to get the full reason for going to all this trouble (might as well)
Now, with it all together, fine tune it.
.....
I am not sure what you will get with your medium 5/$1 toroid from the goldmine, if that is what that is. But Hazens was able to do it with one, so you will too.

You must tune it all now.( I do not think you have found the perfect resistance yet, but you still only have one half done.)

good job. Great perseverance. Keep trying.
thank you for this report also,

jeanna

edit
Let me just check
20up, 20down, cross over the primary, 20up,20down
yes?
edit again:
oops, I got out the magnifying glass, and I can see it is only half wrapped.
I will measure my filter with a mk1 at the half way count and let you know soon.

jeanna

[stprue]

This sounds possible for this stage.
The thing is this is not yet finished.

Go ahead and put both sides together to get the full reason for going to all this trouble (might as well)
Now, with it all together, fine tune it.
.....
I am not sure what you will get with your medium 5/$1 toroid from the goldmine, if that is what that is. But Hazens was able to do it with one, so you will too.

You must tune it all now.( I do not think you have found the perfect resistance yet, but you still only have one half done.)

good job. Great perseverance. Keep trying.
thank you for this report also,

jeanna

edit
Let me just check
20up, 20down, cross over the primary, 20up,20down
yes?
edit again:
oops, I got out the magnifying glass, and I can see it is only half wrapped.
I will measure my filter with a mk1 at the half way count and let you know soon.

jeanna

After wrapping the other side it went down to 35 volts..I then re wrapped it and got the same results so I'm not sure what is wrong???  The good news is that I may have stumbled upon something very important!!!  I don't want to talk about it until I actually build this new hybrid coil though.