Joule Thief

[kooler]

hello
i'm new to all this  joule theif stuff but
i made a air coil jt 7 months ago of 10 turns of 16 awg speaker wire ...5 turns and then 5 turns back over
then the standard jt wire up and then wrap two turns of 18awg wire around the outside in the same direction to make 2.1 volts and it will light 4 leds to near full power .. these are 10 mm leds of 265,000mcd 100ma's http://www.goldmine-elec-products.com/prodinfo.asp?number=G16642
this is a 0ne 1.5 volt input of a c batterie or aa batterie

i need to post a pic.. but i didn't cause i think i have probably just done something noobie
that everyone else has already done.. i was wanting to read the input ma's but my multimeter only reads
0.001 ma all the time on this rig ..so it's probably broke

i forgot to say was the air coil is about 4 inches in diameter

let me know how i can improve this cause it seems to put out the same ma's no matter how many turns of secondarys.. i sure i wrong on that but i think my meter is broke

[Pirate88179]

kooler:

Hey, and welcome.

Post what you have and don't worry about it may having been done before.  This stuff is so out there that, possibly you did something we missed.  You never know.  This is a great group of folks here that want to see actual experiments so, jump right in.

You are using the same leds I have used in many of my experiments.  These put out a lot of light but take a lot more to get going.  Good for you.

I look forward to seeing your experiments.

Bill

[Mk1]

hello
i'm new to all this  joule theif stuff but
i made a air coil jt 7 months ago of 10 turns of 16 awg speaker wire ...5 turns and then 5 turns back over
then the standard jt wire up and then wrap two turns of 18awg wire around the outside in the same direction to make 2.1 volts and it will light 4 leds to near full power .. these are 10 mm leds of 265,000mcd 100ma's http://www.goldmine-elec-products.com/prodinfo.asp?number=G16642
this is a 0ne 1.5 volt input of a c batterie or aa batterie

i need to post a pic.. but i didn't cause i think i have probably just done something noobie
that everyone else has already done.. i was wanting to read the input ma's but my multimeter only reads
0.001 ma all the time on this rig ..so it's probably broke

i forgot to say was the air coil is about 4 inches in diameter

let me know how i can improve this cause it seems to put out the same ma's no matter how many turns of secondarys.. i sure i wrong on that but i think my meter is broke

Welcome , please post anything worth doing is worth posting.

I have a idea for you make one air coil jt long enough so you could bend it into a toroid , a air coil in a toroidal shape, with the other one inside .


Mark

[innovation_station]

welcome to the middle of the mix kooler

post it away ... 

what you have done sounds intresting ..   

throw your fears in the sea of no cares ...      you ve done it now ... 

http://www.youtube.com/watch?v=pNDNoxGU3vQ

its all been done b4 ...  just not this time round yet .. 

ist!

[jeanna]

...
i made a air coil jt 7 months ago of 10 turns of 16 awg speaker wire ...5 turns and then 5 turns back over
then the standard jt wire up and then wrap two turns of 18awg wire around the outside in the same direction to make 2.1 volts ...
this is a 0ne 1.5 volt input of a c batterie or aa batterie

i need to post a pic.. but i didn't cause i think i have probably just done something noobie
that everyone else has already done.. i was wanting to read the input ma's but my multimeter only reads
0.001 ma all the time on this rig ..so it's probably broke

i forgot to say was the air coil is about 4 inches in diameter

let me know how i can improve this cause it seems to put out the same ma's no matter how many turns of secondarys.. i sure i wrong on that but i think my meter is broke

Welcome Kooler,

It may be broken, or not.
the secondary takes little or no more amps than the primary.

The primary joule thief which is made up of the
battery
transistor
base resistor
center tapped bifilar winding
is using the battery mostly to turn the transistor on and off as a switch.
The secondary takes little to no more than what the primary takes.
The secondary produces power from the voltage pulses which were created by the primary. (that is how I see it, anyway)

So, be assured, you are doing just fine!
If you have a pic, I would like to see it/them.

I made an air core about 6 months ago and I had little to no results at all, so I am quite curious.
I just recently bought an induction meter and it is very easy for me to see almost no like 3uH in an aircore when the same thing with an iron core has 9uH but the same thing with a ferrite has 30uH.

I am very curious to see your results.

I love to see other people's pictures!

Thank you,

jeanna