Joule Thief

[Pirate88179]

Yes, I agree with Xee2.  I have read in several places that JT's blink the leds when almost dead.  A very regular flash cycle until the battery is almost completely gone.

Bill

[electricme]

@ all,
I'm up to P150 playing read catch up on all the posts, as ist said "slow down" ha ha, no keep going

This thread beats all others, no kidding.

@bill
Those videos are excellent, keep playing with the sound from your new mixing setup program, volume is OK this end.
BTW that UTube video showing the fuji circuit, sure sounds like a dentists drill lol.

In regards to Stefans prod to you to use a analogue multimeter, he is correct.
The pointer being a phisical thingie will stay put, while the next pulse arrives to keep it there, the DMM will dance all over the place.

I will pull apart my High Voltage analog meter and retrace its resistor array and repost it, this might help someone with the 2 red meters I saw being nulled out by high voltages output from a trifillar coil, hello slayer007

@ arctic-knight
Do you (or anyone else) have come accross a utube video that shows how the magnetic field rotates inside a torrid?
I need to increase my knowledge on this item.

@all
Last week I took a big torrid out of a amplifier, one of the secondaries were shorted internally, so I will be using this one sometime in the JT. Will post a jpg of it later on.

@MK1,
This thread sure makes catching up a long chore, phew and I been on it most of the day, just reading up.

@ slayer007
Thats a good video you made of your setup, I did an experiment this end with the sound, I hooked my frequency meter up to my speaker output and let the utube run. hmmmm don't know what to make of it.
Maby ist can, I got extranious sounds affecting the results I think, but I think this is the first time someone has tried to see if a frequency can be measured via the internet.
take a look at "TINY" video0019.jpg I took this with my mobile ph.

I will try to catch up reading lol

jim
   

[slayer007]

@ all,
I'm up to P150 playing read catch up on all the posts, as ist said "slow down" ha ha, no keep going

This thread beats all others, no kidding.

@bill
Those videos are excellent, keep playing with the sound from your new mixing setup program, volume is OK this end.
BTW that UTube video showing the fuji circuit, sure sounds like a dentists drill lol.

In regards to Stefans prod to you to use a analogue multimeter, he is correct.
The pointer being a phisical thingie will stay put, while the next pulse arrives to keep it there, the DMM will dance all over the place.

I will pull apart my High Voltage analog meter and retrace its resistor array and repost it, this might help someone with the 2 red meters I saw being nulled out by high voltages output from a trifillar coil, hello slayer007

@ arctic-knight
Do you (or anyone else) have come accross a utube video that shows how the magnetic field rotates inside a torrid?
I need to increase my knowledge on this item.

@all
Last week I took a big torrid out of a amplifier, one of the secondaries were shorted internally, so I will be using this one sometime in the JT. Will post a jpg of it later on.

@MK1,
This thread sure makes catching up a long chore, phew and I been on it most of the day, just reading up.

@ slayer007
Thats a good video you made of your setup, I did an experiment this end with the sound, I hooked my frequency meter up to my speaker output and let the utube run. hmmmm don't know what to make of it.
Maby ist can, I got extranious sounds affecting the results I think, but I think this is the first time someone has tried to see if a frequency can be measured via the internet.
take a look at "TINY" video0019.jpg I took this with my mobile ph.

I will try to catch up reading lol

jim
   

WOW electricme that is cool.

[slayer007]

I know this has probably been posted allready but this thread is getting so long I'd hate to have to look thru every page lol.

Could some one tell what frequency a little joule thief is pulsing at or the on off time of the coil?

Thank you

[gadgetmall]

@jeanna
          thats fine .Spring is a long way off for me as it just turned Cold . i'll make at thread and Hopefully have My Generator working full steam  By then . There is a sense of urgency here as most of us Americans are Jobless and looking for a way to free ourselves from Money mongering Government Controlled Energy thieves !!!!
Al
@All
   Very Very Interesting PDF on Magnetic Core Characteristics 
http://focus.ti.com/lit/ml/slup124/slup124.pdf