Joule Thief

[stprue]

Wow. This circuit is lightling the fluorescent tube brightly with only 51 ma.

That's a great job xee2 man 280 turns that must have taken some time!  51ma dammmm

[jeanna]

This has really been a strange day or a day of strange outcomes.

I wanted to get back to a known thing, so I set up the MK1 3.4.92 with a 2n2222 transistor because that was the last thing there, and the light only went on if I had the 2222 going in one direction but not both. This is really odd because this is the negistor. Not only that, when I had the transistor reversed so it did turn on the light it only barely flashed. This is with the 2200 ohm resistor.

So, I shrugged my shoulders and took out the led then hooked up the scope and it showed 327V. Good that is what I got before with this coil.

Then I hit the neon with the secondary leads and it lit.!! So, it was the neons I was using that must have had a resistor to keep them safe to 300 volts for the camera flash.

Next, I popped that led back into the bjtled spot and with the neon still connected to the secondary the led went blazing bright. At the same time the neon went off.

I seem to remember jadaro or somebody having a neon that could light instead of the bjt.

well this is interesting. maybe I should try that fluoro tube. I think I will...

jeanna

[gadgetmall]

I have read in several places that you can't put more than 3 supercaps in series.  They gave a really good explanation of why but, I can't remember what it was.

Bill

Hi . bill . that might be true for little super caps but ULTRA CAP From Maxwell can be connected in series up to 125 vols. they sell Modules with many series ultras in them . heres the spec on them :The BMOD0063-P125 (HTM125) module is based on 2.7-volt BOOSTCAP® BCAP3000 Power cells and incorporates proprietary balancing, monitoring and thermal management capabilities to ensure industry-leading charge/discharge performance, high reliability and long operational life.

The HTM125 meets or exceeds transportation industry requirements for watt-hours of energy storage and watts of power delivery per kilogram, and is designed to perform reliably through one million or more deep charge/discharge cycles, which equates to more than 15 years of operational life.

    * 125V operating voltage

@all On sale get them before there all gone at this price !!!! gadgetmall store .. this one will burn lamp wire into if shorted !!!.
Gadget  650 farads 2.7 volts

[gadgetmall]

Wow. This circuit is lightling the fluorescent tube brightly with only 51 ma.

Nice Going .I told you . that can be lower also . ! At least you will laight that light all night long now at least 16 hours on an nimh aa !! . Good going . I dont have toroids like yours .Is it goldmine stuff ? I cannot run 2  or 4 loops on any of mine .
Gadget .

[gadgetmall]

This has really been a strange day or a day of strange outcomes.

I wanted to get back to a known thing, so I set up the MK1 3.4.92 with a 2n2222 transistor because that was the last thing there, and the light only went on if I had the 2222 going in one direction but not both. This is really odd because this is the negistor. Not only that, when I had the transistor reversed so it did turn on the light it only barely flashed. This is with the 2200 ohm resistor.

So, I shrugged my shoulders and took out the led then hooked up the scope and it showed 327V. Good that is what I got before with this coil.

Then I hit the neon with the secondary leads and it lit.!! So, it was the neons I was using that must have had a resistor to keep them safe to 300 volts for the camera flash.

Next, I popped that led back into the bjtled spot and with the neon still connected to the secondary the led went blazing bright. At the same time the neon went off.

I seem to remember jadaro or somebody having a neon that could light instead of the bjt.

well this is interesting. maybe I should try that fluoro tube. I think I will...

jeanna

Good going Jeanna !!  .What torroid core are you using ?? goldmine 5 for 1 dollar ?

Al