Joule Thief

[dasimpson]

a question to light a tube fully would we need more voltage or is there a limit to how much we can get them to light with voltage only
i mean could we get the as braight using the jt as they are when in normal usage

[conradelektro]

you can run air coil with this at low ma's.. or you can just make your cat go nuts..
robbie

@ robbie (kooler)

I want to replicate your "backwards JT" circuit and wounder how many turns (instead of the 3T/5T/15T on a toroid) one should put on an air coil for your backwards JT?

What diameter should the air coil have?

I guess you propose an air coil to increase the frequency?

Greetings, Conrad

[jeanna]

a question to light a tube fully would we need more voltage or is there a limit to how much we can get them to light with voltage only
i mean could we get the as bright using the jt as they are when in normal usage

Hi dasimpson,

It is a good question.
We do not know.
There has been speculation that the full brightness comes from the warmth component.

Keep trying.

I recently wanted to try the capacitor-joule-toss I spoke of before, where all the joules except for the ones being turned into photons return to the other side of the secondary, again and again, but that is just my latest idea.

Try anything you can think of.
and, of course, report it.  ,

jeanna

[Pirate88179]

Hi dasimpson,

I recently wanted to try the capacitor-joule-toss I spoke of before, where all the joules except for the ones being turned into photons return to the other side of the secondary, again and again, but that is just my latest idea.


jeanna

Jeanna:

If you attempt this I think there is a slight possibility that all matter in the universe will spontaneously disintegrate.  I could be wrong though.


(Grin)

Bill

[dasimpson]

oh i am a long way from anything like that im haveing trouble getting the 2n3904 to light off 11 turns bifoiler were as my bc337-25 will go from about 5

Hi dasimpson,

It is a good question.
We do not know.
There has been speculation that the full brightness comes from the warmth component.

Keep trying.

I recently wanted to try the capacitor-joule-toss I spoke of before, where all the joules except for the ones being turned into photons return to the other side of the secondary, again and again, but that is just my latest idea.

Try anything you can think of.
and, of course, report it.  ,

jeanna