Joule Thief

[xee2]

@ jeanna


Circuit draws about 400 ma from AA battery.  Theoretically, AA battery will last about 3 hours with 400 ma drain. More info here:

http://www.powerstream.com/AA-tests.htm

[jeanna]

Yes, It may be that. It looks about the same brightness. About 1 hour along the voltage read 0.98vdc. Now it has been 1 hour 40 minutes and the voltage is still 0.98v. mmm

It will be worthwhile working this on the ac part of the circuit. I am starting to understand what you were getting at telling Bill to clip off the diode + end. I assume the next thing after doing that would be to connect the traces so the E- goes both ways through the cap-leads.

I am thinking that the trigger leads didn't work on this before, because I had not eliminated the diode . If both the diode is gone and the trigger switch is closed, then the cap is getting ac according to jesus' post and drawing.

fun.

jeanna

[xee2]

@ jeanna

Yes, shorting out diode will send AC to large capacitor leads.

[nievesoliveras]

@jeanna

This thread is going very fast!
Yesterday it was about three pages less.
Today I found that you had a tremendous success with an 18" 15w lamp.
That is awesome!

I wish I could find a fuji circuit to experiment with it.

Jesus

[innovation_station]

hey jesus ....

build your own  .....    water to wine 

ist


i am building a wee bit bigger than the cam flash unit.....

i got 3 transformers...  i will run em backward

i will build a pulser unit ..  wich is already built.... 

might try a fet .... 

ist

sorry no pic i have plans for this unit..... btw i took apart bout 10 transformers last night ......  they are ferroite cores...  some are flybacks 

have a round center core with a small mag cap gap  lol

i will be rewinding em 

to suit my needs .....

i also built a big pulse motor yesterday... 

and a huge coil.....      and i do mean huge ....  sure i will post a pic of it ....    as im proud of my new coil...

used 14ga and 22ga magwire on a 4"x4" spool ... bifillar .. aircore ... polorized and layered fried from inside out ...  im aimeing for 10 layers

i have 5 done so far  it is the most perfect coil i have wound yet not 1 wire out of place   

btw i have wound all my coils by hand...  and i literly have hundreds of coils some milies long .... practice makes perfect!!