Joule Thief

[electricme]

@Jeanna
Firsf, condgrats on your last jpg showing the 4W tube and the much brighter CFL lamp, you are doing fine.

xee2,
This whole thing is so confusing.
Putting the neon in the secondary might limit the v to 100 (or 170 spiky volts, more likely,) but the thing is it will limit it and it is the volts you are measuring to use in the ohms law based formula.
I have issues with using ohms law with ac or pulsed dc, but besides those objections, how on earth are you ever going to see a volts reading that is above what the neon siphons out?

I don't get it??

thank you,

jeanna

As he said, the neon is his safety device along with the capacitor (I recomend you use a cap with a high voltage rating).

If he wants to measure total output, then just disconnect the cap and neon, and let it run.

@ Bill
You mentioned you had blown your variable resistor, he he, you have managed to switch current through the vari resistor, answer is, you need a higher current carrying device to be able to pass the current, gess what, your JT is getting ready to be able to put out current, just a little tuning and la do do da. Amps.
Try placing a single torch bulb 1.5volt across the output, it might glow.

You can set up another transistor (BC548) across the resistor connection points and switch the base with the Hzs.

Big electrical storm approaching, power fluxuating, I betta be off.

hooroo

jim

[jeanna]

Thanks Mark
Thanks Bill,

It is funny, Mark, I was thinking how the earth battery can only be used outside or with a long wire.
After making 3 lamps so far, I realize it is really nice to have them be as independent as a candle.

It is subtle, but when I was thinking about this today, I realized it not only frees up lots of plugs, but it gets the wires out of the way and the lamp can go anywhere.

You know how the catalogs always show lamps with the cord hidden somewhere off the scene?
This lamp can be in the middle of a circular table and there is no cord!

====

Those 19 leds lights are very convenient etc, but the best one yet is the globe lamp because of 2 things.
1- It uses the 2N3904. That means it will run down a AAA 700mAH battery in 10 hours or more, but these 19 leds or the cfl or even the 34 led string o lights works best on a transistor that takes much more power to operate and uses up my batteries in 5 hours.
That is still the greater part of one evening, but it means it needs to be recharged the next day.

(Enter jesus and gary and bedini.)

2- it runs 6 leds in series and each one of those has 4 in parallel.

I am wanting to see if there is a difference in running leds in parallel when they are coming off a secondary at high frequency.
I think it is nothing like the usual scenario. I think you will not wear out the leds at different paces with the high frequency low mA.

If 4 leds are in parallel and one has a little less resistance it will be very bright for a time, but then it will go dim as it is slowly burned out. This is caused by too many amps going through that one bulb.
I think this does not happen when high frequency is used, .
I will try to work out a way to learn about this.

thank you,

jeanna

[Pirate88179]

Jeanna:

You could use an EER and a B-cap, JT and an SEC from Dr. Stiffler and run the lights in your house with no wires for free.  We may not quite be there yet but, this might be possible. I'm just thinking here.

Bill

[nievesoliveras]

Lady @jeanna
@ist

The year's last videos seems to be yours.
Congratulations both.

Keep sharing the way youre doing.

Jesus

[innovation_station]

thank you jesus!


im still playing .. lol

im adding a few pictures of my unit as it is now i added an indicator led a recharge aa holder just bult the feedback/ recovery / recharge feed curcit .. i mounted 3 out put pins and 2 input ..

a switch  uped the magnet ... i will still oscolate between recharge /feedback.. and boost cap charge .. via some means .. it will be external of this unit ..

this is just super basic jt transformer tuned via magnet

ist