Joule Thief

[Mk1]

Ist

I just watched your video , you did good for once . i don't think there are any strings ...

But in your video you clearly say it is a SSG bedini !!!

I know the only people that still plays with you are here (get attention) , but jt or not...

But you seem not to care about anything but your self .

We backed you many times in the past , we even got faraday out to protect you , you have no respect .

So be it .

You really think you helped , maybe only on page 814 now we all know what it means .

Mr. Half Tesla , you know so much how could you sell my dumb design in your E-store...

What nice equipment you have now ? wow things most be going good for you , you probably work for the government ... and that was a joke , i bet you will get it one the first .

I am the stupid one , but i must have fooled you first ...

The fact is less is more .

[Pirate88179]

. . . dopplegangers?

- - - - - -

Anyway, I was thinking about the Fujii circuit, ..isn't the transformer on that thing just a trigger coil? ...

Actually no.  The Fuji has a regular transformer that boosts the voltage to about 350 volts or so.  This boosted voltage is then sent to the trigger coil on the board. via the cap I believe.

The way I, and I guess most of us, use the Fuji is just with the primary transformer.  That trigger coil puts out about 4,000 volts I am told.  I would like to mod a Fuji to use all of this BUT, since it was designed to only fire a xenon bulb for a second off of the cap, it may not run full time.  But, then again, it might.

I don't know enough about electronics at this point to respond to the rest of your post.  I do know others are using trigger coils successfully and I want to look into this.  I have about 5 trigger coils salvaged from various camera boards.

Bill

[Mk1]

@jadaro

I am also looking into it , i just found in my scrap a tl494
(http://focus.ti.com/docs/prod/folders/print/tl494.html)
i can't believe how nice it is , i can also get the locally at around 3 dollars . In a PC psu.

They have two counters, it works for almost any configuration Boost, Buck, Flyback, Forward, Full-Bridge, Half-Bridge, Push-Pull. pwm included in one chip.

I also found a irf840 mosfet . This should be a good start , but i will need a pair .(tutorial on mosfet http://www.youtube.com/watch?v=Te5YYVZiOKs)

I also know of watson blog , he made some joule thief , with 2n7000 mosfet.
http://watsonseblog.blogspot.com/2009/01/joule-thief-fet-only-is-topic.html.

This will make a great tool to test coils.

[innovation_station]

the thing in the video ...  is basic bedini ....  nuttin more...

i have made bout 15 changes to it ...  since that video..

lol

now its a lot more ...

still bairly basic TESLA!

[Pirate88179]

MK1:

Thank you so much for posting that Mosfet tutorial!!  I never knew what they were exactly or how they worked.  Now I do.

I love this topic!

Bill