Joule Thief

[sm0ky2]

@ Bill

that being said...

i can rest assured that none of my thousands of capacitors are
"supercaps"....

some of my larger ones are 4.7mF (4700micro)

i dont have anything close to .47F

and my smallest are 50v

[Pirate88179]

Smokey:

Two things.  I don't want to confuse the info about the base cap. as I have never used on of those.  That should probably be of the kind you have there laying about.  All of mine have always been wired in parallel to the EER.  These are two different applications and other folks here can help with that.

Here is where I got my 10F 2.7 volt (I keep saying 2.3 volt but that is my 650 farad cap.) supercaps:

http://parts.digikey.com/1/parts/90420-capacitor-ultra-10f-2-7v-radial-eshsr-0010c0-002r7.html

I got my 650 F 2.3 volt maxcap from Gadgetmall.

Bill

[jeanna]

do you know the cut-on voltage of the 2222?

silicon transistors turn on at about 0.7v
The germanium ones can be 0.35v

but i know for a fact my toriods can handle up to the Mhz range,

excellent. The point was only to be doing something others can replicate, but you are not alone, as I mentioned the dump experts hardly ever buy something... note how jim has a box of 3055's!
Anyway, nevermind. As I said it is just MY thing. We are all different and it is great.

it was NOT the LEDs like i had thought.

What was it? the number of turns?

...

...what you are calling 'supercaps', ...

They are a new-ish development.
A sort of hybrid between a cap and a battery. Mostly cap, but slower like a battery. More chemical, or something.

just out of curiosity, where are we placing the capacitor in this circuit

?
Parallel to the battery

I am sure you know this part, but for newbies:
neg on the neg side, pos on the pos side.

The hot sun has finally dipped below the horizon.
I will check to see if I have collected anything in my cap... hoping the jt has a light.

jeanna

Edit:
I don't ee a light but I don't see the yellow either. so maybe hoping.

I just re-read a pm from jim answering a Q of mine where he said he didn't use one diode but a bridge.
So, I never did make a bridge of 4007,(just 4001) but I guess in tomorrow's heat will be a good time to make a bridge of 4007's

[innovation_station]

all that being said bill ...

i have a few more IDEAS lol

imagine ... 

well on my last coil i posted i have room for a second 2 turn jt ...  wich i guess i will try to add ... and i found 1 more small supercap that i have...  and its .33f 5v got it from a true shake it light ..

and i have just enough room for a 3 turn pick up coil .. to charge the super cap .. and when it has some reserve power in it i could fire the second jt ...  it wont keep its self running i dont think ...

but i also have a small surface mount 3.6 v nicad i could put there too they charge kind quick and much like a super cap .. 

just more rambleings ... 

to keep this even simpler i will just use the super cap to feed back to source and recharge driveing battery ...   with 2 turns i get like 5 v ... there bouts  and it charges the super cap slowly ... and i still have outputs round the bridges wile it charges the super cap .. i put the feed back through a db 107 rectifier then to the super cap im gonna solder it all in place but i may add more turns since i will not add the second jt to this ring for now .. i want to try some feed back for the first time ...

im kind of wondering if i use a aa battery as normal then a aaa and recharge the aaa from the aa take the aa away and runn  on the aaa and the super cap feedback rechargeing it ...  hummmm

coments ......

ist!  thats a hole lot a a`s lol

[jeanna]

Here is a pic from www.allelectronics.com
2 super caps

jeanna