Joule Thief

[maw2432]

@ IST

Can you show us pic of your battery charging unit?

Bill

[AbbaRue]

@jeanna
Is that 400mA drain only with the FLL connected or is it always drawing that much current?

@Pirate88179
You got the 100 LED's to light from one wire I believe we have a cold electricity source here.
If you short the prongs of all 3 strings of LED's and connect that same wire to all three and they light,
then we truly have something awesome here.
I bought a camera on Friday, now I just need to use up the film don't want to waste it.
Then I plan on testing this out too.

@innovation_station
Have you tried connecting just one wire up to a FL Tube to see if a standard JT will light a tube from one wire?
If you connect a bunch of LED's together in series and short them out to form a circle of LED's,
you should be able to connect a single wire anywhere in the circle of LED's and get the whole circle to light up.
If they do than the standard JT circuit also works as a source of Cold Electricity.

[innovation_station]

no sorry ...


@abba  sorry i did not i will today  i have 2 24 led rings i will post a pic of the compleated unit later on im building many things at once as always lol 

for my closed loop system .....

i will tell u what is involved

primary bat  to pulse motor charges 2 batteries 1 is output to invertor ... other goes to other charger and returns to source....  my primary battery is small output batteries is big...   get it 

kinda like big cap small cap 

ist

free cake is from hemf!!!

[Thaelin]

Hi Jenna:
   Been hiding in the background and enjoying the fun. Its good to see that these tubes
can be lit up with a small amount of power. I noticed in one of your pics that you have
the board laying on the inside of a metal container such as a cookie tin. This could short
out and cause you grief in the future. A piece of paper, cardboard or such between will
save you getting more parts later.

At Tommy(Timmy)?
   Cant remember which, sorry, but thanks for the pic showing the value of the cap used.
This is what I figured, fairly small uf but high voltage. The new ones are most likely same
area uf but at say 600v so that it can retain some of the charge for the next flash.

To All:
   Many thanks for shareing your findings and great pics. Just goes to show just how little
power you need to make things happen if done right. The comment about the 9v TPU can
really be viable. Just put it all together in the right combination it the trick.

thaelin

[jeanna]

Hi Jeanna:
   I noticed in one of your pics that you have
the board laying on the inside of a metal container such as a cookie tin. This could short
out and cause you grief in the future. A piece of paper, cardboard or such between will
save you getting more parts later.
thaelin

Hi Thaelin,

Thanks for your concern. You can't see it, but there is a playing card (the joker!) under the circuit.

I have the whole circuit on the tin lid because I didn't want to char the carpet as I did with the tablecloth last year playing around with my first flash camera.    )

And, yes, this is a good reminder about the strength of these little things.

@jesus, Too bad you can't get any disposable camera at all? I should think any circuit prepared as you described will work.

@Abba rue,

I didn't say 400mA. That was xee2 and I was wondering where he got that figure. The light is 15 watts at 120 volts, so it should be using 125 mA not 400mA. I think this would be more like what I was seeing. If I had started earlier, I could have tested the battery longer.

The battery was at 0.95v when I turned it off but as soon as it was disconnected, it was 1.05v (this morning it has recovered to 1.30v.)

@All
This morning I turned the switch on and the neon went on for about 1 minute, then stopped. I switched to a new battery then smelled heat and felt that the transistor which was cool last night was hot.

I guess I need to play around with this a bit more. I am afraid to fry my new 35-led string since it lights up my bathroom so nicely for 2.4 watts.

Also on the docket for today. I Since I never cut the diode, I want to do that. I expect a big improvement, now that I understand a bit more about what the circuit does electrically.) But, before that I need to replace the solder iron.

thanks all,

jeanna