Joule Thief

[TheNOP]

@TheNOP

I did not try a cap on the output. However they are not LED lights they are mini lights. I am going to order some LED Christmas lights.

Thank you!

i noticed it after posting and proptly removed my question in hope you would not get it.
look like i was not fast enough. 



@electricme
i think the bridge is wrongly placed.
the load should not on the AC pin but on the + or - pin.

[jeanna]

I guess I am in the mood for light entertainment tonight.
Bill this is for you. It is in celebration of your finishing taxes today, and any good excuse to have a little laugh.

My computer claims that this is 20 K

Just one page of reading. Kind of like a highschool kids term paper on electricity, but a bit too clever.
It is called 'What is Electricity?'
I think everybody should pay close attention.

enjoy,

jeanna

[electricme]

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

@Jeanna
The purpose of the clip is to anchor it to an earth on the circuit or the Batt 0 volt.
This allows you to have one hand free to adjust the scope if needed.

If you buy a special screw or push on clip for the probe end, you can set the scope up to make long term recordings without having to hold the probe all this time as well.

***************************************
I have a problem with quoting, how do I make a quote, if it is just a couple of lines?
I can quote the whole item, with the black thin line shown or I can quote a single line without the black line shown.

How can I show a quote of 1 line with the black line shown as well?

jim

[Pirate88179]

@ Jim:

Excellent idea my friend!  I like that we can post circuits with a built in place for future comments.  Very good thinking from down there in Aussie land.  About quotes.....Jesus posted about this many, many pages back.  If you look when you "quote" something, you see what Jesus told us about....certain computer symbols and all. (I can't remember)  What I do, which works but is not as efficient as the advice Jesus gave, is to hit the quote button, and then, while creating the message, I just delete anything in the message that is not important.  BUT, do not delete the computer symbols at the end of the message or it will not appear as a "quote".  So, leave the stuff at the very beginning of the message and the stuff (symbols) at the end of the message, and it will show up as a quote.

@ Jeanna:

Thanks for the mention of me having my taxes finally done....I am still celebrating over here.  What a relief!!!  And also now, my scope was shipped and will be here in about 1 week.  I am too excited for words.
Bill

[jeanna]

@Jeanna
The purpose of the clip is to anchor it to an earth on the circuit or the Batt 0 volt.
This allows you to have one hand free to adjust the scope if needed.

If you buy a special screw or push on clip for the probe end, you can set the scope up to make long term recordings without having to hold the probe all this time as well.

***************************************
I have a problem with quoting, how do I make a quote, if it is just a couple of lines?
I can quote the whole item, with the black thin line shown or I can quote a single line without the black line shown.

How can I show a quote of 1 line with the black line shown as well?

jim

Hi Jim,

When you click the quote button you get the whole thing. It starts with the identification of where it comes from etc. At the bottom is the end quote tag  it looks like the word quote with a / in front of it and in square brackets.
I usually take out what is not what I want to respond to. then the person's ID is included.

But if you want to make a quote in a blue box when it is from some other place or whatever first highlight the part you want to quote and then push the button for the quote that stephan has provided. like so,

How can I show a quote of 1 line with the black line shown as well?

The reason the black line is there is that is how the web page was designed.

The bare necessity for the blue quote box:

As long as the [ quote ] is at the beginning and the [ /quote ] is at the end, it will come out in the blue box, (I added spaces so it wouldn't happen just there.

Does that help? I can give more info if you want more.

===

Thanks for the info on the clip.
I am not sure all of it applies to my probe. Since I don't have the plug in type of scope,

Now, if the purpose is to anchor it to earth, and this is not a battery circuit (being separated from the battery by being on the other side of the transformer) I should be able to have the proper effect by clipping the clip to the alligator clip which is on the floor. Is that right? (You do realize I do not want to involve that battery side of the circuit in this post transformer side, don't you?)

Which is the battery 0 volt? red or black? (electrons goes from neg to pos, but conventional current goes from pos to neg. eesh )

thanks a bunch.

jeanna

btw comments space is a good idea.