Joule Thief

[Pirate88179]

Wilby:

Exactly.

Thank you,

Bill

[innovation_station]

i can not blame 1 soul  at all we all want to understand why we are here where we came from and how things REALLY WORK..

if you do not wonder i question if you even exsist!

w

thanks bill ..   

[PaulLowrance]

So conclusion is three swaps of Bcaps alone reached OU of the run  even with the Kitten fumbled experiment 2 part 2 .

That's an interesting experiment-- swapping bcaps. So if you two same bcaps, you use one to charge the other, eventually swap, swap again, etc. Did both of the bcaps end up with more voltage in the end?

Paul

[Cap-Z-ro]

Just catching up on these developments now...for some reason the thread notifications stopped, so I fell way behnd.

My congrats to you again gadget...this is one time when I like saying I told you so.

I have a patent comprised of materials build by others before me...it was in the way I arranged everything...no one can ever deny your similarly unique discovery=arrangement of components built by others.

This kind of makes you wonder what could be accomplished with a heavy gauge joule thief.

Also, are they also using bcaps in those quick recharge power tools ?

Its onward and upward from here folks...you can almost smell a change in the air...just hope is isn't another one of Obomba's back passage discharges.

Regards...

[jadaro2600]

I do not understand why some of us are placing the resistor at the base; I usually place it prior to the coil, and here's why: 

..by reference -->
In gadget's, and many other circuit, I often see the resistor 'tanked' and at the base ( picture 2 ).

In the original early-versioned JTC's the resistor was placed prior to the coil, and a capacitor was bridging from the voltage dropped side of the to ground ( picture 1).

This is just how I've been doping things lately.  I realize that with the resistor at the base, the coil is already sitting in the maximum voltage area of the circuit, and any flyback goes back to the positive side, however, with the resistor prior to the coil, any flyback intended to turn the transistor on at the base is then impeded by the resistor at the base.

In picture 1, there is an orange dot, where positive electrical energy builds up allowing better oscillation, I've found that I don't use this unless the coils require it, and this is so, because the majority of the time, with a resistor prior to the coil, the coil has capacitance of it's own accord ( since I mostly use pre-fab paired inductors ).  Flyback or cuttoff of the transistor occurs with maximal efficiency and either a greater on or off current occurs as a result of there being NO impedance to the base.

*edit
I'll run some tests to confirm, however I do make a note that I've gotten the circuit to work ( without a resistor at all ). ...the idea being a minimal loss of energy through the B-E junction. Unfortunately, I only have gotten this to work with a specific torroid in a specific circuit.

@Bill, could you give me a link to the Jesus thread about batteries, I'm having trouble finding it.