Joule Thief

[nievesoliveras]

Jesus

Thanks for the  schematic
...
All  I really need to know   is  if  4 and 8  were  both connected to   B+
On the  schematic 
...
gary

Almost always with some exceptions, the #8 and #4 pins are connected to positive.

You can connect them to positive without damaging anything.

Jesus

[resonanceman]

Gary:

I hope you decide to stay.  You are a valuable member of this group and have contributed a lot to everyone.  If you decide to go, you will be missed.

A tip in case you didn't know about it. (If you do and are using it already, ignore this)

Use Firefox for your browser (Mozilla) as this forum, and many other sites, are optimized to run on Firefox.  Then, get several add-ons, Ad-blocker, no script and downloadhelper.  These block the ads and pop-up windows that take up most of the time to load a page.  Even with my DSL pages here and elsewhere were taking like 30 seconds to load, and sometimes (like you said) never finished loading.  Now, they load in less than 2 seconds.  I know you are using dial-up and, God help you.  But if you are not using Firefox, switching over, which is really easy and fast, will greatly speed up all of your page loading times.  My Youtube videos load about 5 times as fast with Firefox as they did with ie.

Just some thoughts.

I hope you remain with us here.

Bil

Bill

I guess I am still here .
I spent  another  day  getting nothing at all done .

I had  a schematic for  a  TL494  circuit  that  I can't find .
I  thought  I had it saved .......but   could not find it .
Can't remeber where I got it from .


I have been using firefox  for  quite a few years .
My son knows  alot more about  computers than  I do ....he told me the beat way to  aviod  hackers  and   viruses is to  aviod  using  IE and  outlook express . .....that was good enough for me .
I spent  agood share of the day a week or so  ago  downloading  the  latest  version of firefox ......their site said it  downloads  faster .
Mostly it  freezes  up more ........at least on this  computer .


gary

[slayer007]

@ slayer007

So is this your circuit (without LED and diodes)?

Basically yes, With out the diodes and led.

[resonanceman]

Almost always with some exceptions, the #8 and #4 pins are connected to positive.

You can connect them to positive without damaging anything.

Jesus

thanks  Jesus


gary

[xee2]

@ slayer007

That is a puzzling circuit. It seems like it should not work but yet it does. If an amp meter is added at the positive terminal of the battery does it show any current flow? Either when the battery is first connected or afterwards. If the Joule thief is working, it must be drawing current from the battery somehow. At least according to the normal rules of physics.