Joule Thief

[kooler]

somebody try this idea ?
to transform again low voltage, but higer curency
I feel its should be about >1 efficiency and easy measureble
maybe Ill try it

http://www.overunity.com/index.php?topic=6123.msg216284#msg216284

http://www.youtube.com/watch?v=ruJXtBby-pw

tysb3
that is very much alike of what me and xee2 are playing with
but we are using scr and triac's rather than a spark gap

[innovation_station]

here is my ver of the jt tuner .. 


i  made it so i can change pots easly ...

ist

[freepow]

@ All

Never though I'd ever light a fluoro with a small transistor, dont know wether it will burn out or not if I left it running for a long time...

I usually use the big trans - to light my flouro's, but thought I would try with this small one ! and it worked!

[guruji]

All my leds that were also on that secondary went out when I tried that.

@ALL,
I have just discovered that all my transistors are half broken.

How do I say this?

If the transistor is set to run a very normal and well known toroid, the oscillations refuse to start until the base resistance is down to less than500r.

I just got an order of tip31 in yesterday and they appear normal, that is, they still turn on at higher resistances.

I had a lot of trouble last week and one by one I have found that most of my components are not working right.
I have no idea what this is, but I report it in case everyone/anyone else is struggling, and if there was a flare of some kind that half blew my components.

Anybody else?

jeanna
----
I better get on with the mag amp eh?

j

edit
I just went through all the transistors in the storage box,
Every one in plastic that was here before monday is seriously damaged.
The ones in the can's seem fine.
I have 3 germanium in cans from gadget
and about 8 2N2222A in cans from various places
2N3055 with leads on it seems fine too.

Fine means it turns a basic joule thief on when the base resistor is set to 1k ohms.

---
Even the original TIP3055 from RS that blew me away it was so good but never managed to get into a circuit is half gone.

This is disturbing, to say the least.
I live in a faraday cage except for the windows. My supplies are in the window.
They are all in metal cans, but I don't usually close them up.

I wonder if my experiments are doing this?
or
if something else?

Hi Jeanna sorry for blowing out your leds I was going to do that myself maybe I do another coil for leds and battery and see what happens.
Thanks

[Magluvin]

J
Maybe you are producing Radiant pulses and its affecting things around you, like the transistors. Just a thought.
Maybe at the levels you are working with, they are not quite visible as compared to Teslas HV pulses. But if this were true, other electronics around would be disturbed also, like a dvm, etc.  Again, just a thought.

Mags