Joule Thief

[jeanna]

Yeah watch out! blast the garage doors...

I found the piece about the rate of change of the frequency being so important, and it seems he was indeed referring to the shape of the rise. It seems that with his spark gap which he had to use because he didn't invent the transistor  , the spark would begin before the spark would actually go bang, and there was a lot of loss in this.

Lucky for us, we have the transistor. We have the constant drain of the base but given that this is constant, the closing and opening of the switch gives US the ideal shape of the wave. Many more effects at less amperage are evidently available with this sharp shape. And this is what he was referring to when he called it rate of change of the frequency. We already have it with the transistor. Yeay!

We will be able to use the cap/condenser where he used it after the oscillations were already set going.

He used it in these 2 places. One to start the oscillations, the other to change the frequency or voltage later for whatever effects he wanted.

His circuits were all parallel, with or without a ground.

They seem to be set up between the "arms" of the secondary and each parallel side circuit could have its own different thing going on. Still later, he would or could transform the whole business to a higher or lower voltage and continue.

When I first saw the drawing of this I thought it was just a composite of all the kinds of circuits that this alternator could do, but in fact, he is showing that you can do all of them at once. (and from a dc generator or an ac alternator)

Clearly this  circuit is the precursor to what runs our plugs. Our houses are wired in parallel and at any plug we can have transformers to take the low frequency harmonic waves to something different but useful for a specific appliance.

Wow, I'm sorry for all the words, but this is cool.

jeanna

[stprue]

stprue:

Toss supercaps into the mix and it gets even better.

Bill

Yes I have started with that already.  If you noticed in the pics a few pages back of my Hazen1 coil after I hooked up a 2.5v @10f supercap my volts shot up quite a bit!   Now I just need the EB.  I could order one from gadgetmall but I dont know enough about the NS setup which seems better! What do you think?

[stprue]

NICE

My latest goldmine supply just came in.

15 ferrites
2 Power Inductors
UV leds
Inverter transformer
3 Solars
4-265k leds
inductor
more transistors
Another breadboard
Mylar caps

Oh yeah and that tiny CCFL lamp Driver High Voltage Inverter

This will keep me busy for a while

[stprue]

Yes I have started with that already.  If you noticed in the pics a few pages back of my Hazen1 coil after I hooked up a 2.5v @10f supercap my volts shot up quite a bit!   Now I just need the EB.  I could order one from gadgetmall but I dont know enough about the NS setup which seems better! What do you think?

I forgot to mention that I have 5 of these but when I put 2-5 additional caps the voltage gets lower, not by much but it does.  Have you experienced this problem or do you know whay this happens?

[jeanna]

I forgot to mention that I have 5 of these but when I put 2-5 additional caps the voltage gets lower, not by much but it does.  Have you experienced this problem or do you know whay this happens?

I am not sure where you mean, but I have definitely seen it on the scope. You put the cap in and all the spikes - well almost all- get turned into nice curves and the thing is all smoothed out. I think this is why they help in some applications, but the voltage goes way way down.

I bet it has to do with the size and its relation to the rest.

jeanna