Joule Thief

[electricme]

@all
I been havin a slack attack, now I got a lot of catching up reading to do.
Built a few electronic kits, Tryangle and Square wave generator.
Built a 0-15v DC adjustable power supply.
Built a 2.3v to 9v DC to DC converter, it has a torid I had to wind.
Trying to recover 8 x 12v Gel cells, filled them with EPSON SALTS


@The NOP,
Sorry to hear you motherboard died.
If you still got it, take a good close look at the larger capacitors, if there is one or more with a bulging top, replace the cap/s they will probably be a parcial short.
If you see a cap leaking, replace it also.

That should fix er up.
Back to study.

jim 

[Mk1]

@jeanna

Yes mk1 has 1 pickup coil on each side , mk2 has 2 , and mk6 has 6 so total 12, and mk8 so 16 .

Mark

[Pirate88179]

Mark:

Are we going to see the MK 10 soon?  Or, would you need a larger toroid to make this?

Keep up your great work here and thank you.

Bill

[jeanna]

@jeanna

Yes mk1 has 1 pickup coil on each side , mk2 has 2 , and mk6 has 6 so total 12, and mk8 so 16 .

Mark

Awesome.

How do you put these together? or do you just run each pickup to a different array or electrical function?

I think since I already made a mk1, I can make a mk2 without too much confusion, eh?

jeanna

[jadaro2600]

@jadaro,
Would you be willing to move your resistor and cap into the spot BETWEEN the base of the transistor and the 40 turn coil? Just to see what happens. I am not asking you to conform. I want to have a basis for comparison on your copper coil toroid.

This could be a real breakthrough if it works the same or are you seeing better?

(then you can continue with your experiments.)  Thank you very much.


It is 8PM. I think I will break for supper!

Thank you all,

jeanna

I'll have to get back with you about that.  I have an ear ache right now  - it's been one thing after another - cold / flu - sinus infection - ear ache ...what next? ...scientific breakthrough?

I'm going to have to build the device from scratch - I've been experiementing with linear transformers - basically 1:1 ratio - but with little success.

I did attempt to do what you asked, but to no avail - but after connecting it in regular way - it's not working in normal mode.

By asking me to arrange it this way - do you mean bridge the resistor with a capacitor - as in have capacitance across resistance between the coil and the transistor?  This seems simple enough. I'll give it a try.