Joule Thief

[Mk1]

So, this is starting with 30/1.2= 25 times as much energy as a JT.
And what is happening as a result?

If it is supposed to be pulsed, then it can use a jt to pulse it.
It is not hard to make a 1khz jt that can pulse it.
So, once you pulse this with a low amperage jt at 1khz and 30v, what have you seen?

I have seen your pictures of 1 led and 24 leds in parallel (=same thing as 1 led) so that is 2 leds. You are also lighting a bulb brighter than a battery, which you say is a filament bulb.
Is this correct?

You get a steady DC so you can fill a battery from it?
Or light a dc bulb?
or put it into an inverter and use it as ac?

I want to be sure because this conversation has been a little chopped up.

thank you,

jeanna

First filament bulb YES YES  .  Brighter !

I did not pulse it with anything but the basic joule thief at 1.3v.

I can't tell , about the secondary , it may be dc but the meter can't see it without a bridge , there are many reason why my jt model is not producing dc .

But i don't think i got Dc yet i still need to make some improvement .

[Mk1]

Mk1
Are you using a resistor on the primary? I tried resistors and the output was significantly lower.
I didnt know you brought the coil over here.

Mags

I am not a big fan of the TPU crowd , they seem to be all talk , better all work . I am not the only one agentgates is gone , i was told directly .

If you mean base resistor in my jt circuit . Then yes on the pictures you can see a green thing , it a 300 ohms trim pot .

So i like it here , and it is a jt after all .

[jeanna]

@MK1

Oh nice!
Thanks for clarifying,

Was the 1.3v pulse from the secondary or the  C-E spot?

jeanna

[Mk1]

@MK1

Oh nice!
Thanks for clarifying,

Was the 1.3v pulse from the secondary or the  C-E spot?

jeanna

1.3 volt battery , pulse C-E around 39 volts , that is from a bridge connected on it .

[jeanna]

I had something happen that surprised me tonight.
I have a cfl across the secondary wires of my jt secondary.
It lights... ok normal.
Then I added a bulb that is screwed into a bulb socket with wires, and I added that in series with the cfl. so they are both across the secondary and in series with each other.
The cfl goes on, but the other bulb does not.
How is that possible?
I expected that if the juice doesn't pass through the second bulb, then the first one wouldn't light either.
Is this normal?

Thanks,

jeanna

|--o--| this is one light across the secondary, and
|--o--o--| this is both of them across the secondary in series  and the first one goes on but the second one does not.
?

edit:

1.3 volt battery , pulse C-E around 39 volts , that is from a bridge connected on it .

thank you, Mark
j