Joule Thief

[Mk1]

@ist

I was trying a 2 transistor like the one Jesus found, it work but can't get more then 35 volts a coil , so if i can't do better then that then, its worthless, it worked right away but i still need to find the right value for resistor. So fer the regular jt circuit, is so much better an simple.

I am checking different transistor , but we need a easy to find one. I will try 2n3055. i will be back.

Mark

[nievesoliveras]

@Jesus,
Hi there friend, I havent pulled apart one of those mobile chargers yet, so they have a torid in them, thats interresting.

Hope you have success with it.

Im looking forward to hearing how you go with it.

I gotta hit the sack
Hooroo

General Jim

Maybe I did not explain it properly. What I used was the coiled cable from the phone charger.
I wounded it over the toroid I had and made a multivibrator. The output was dissapointing, just 0.12v rectfied.

@innovation

I will consider your toroid sale offer.

@ist

I was trying a 2 transistor like the one Jesus found, it work but can't get more then 35 volts a coil , so if i can't do better then that then, its worthless, it worked right away but i still need to find the right value for resistor. So fer the regular jt circuit, is so much better an simple.

I am checking different transistor , but we need a easy to find one. I will try 2n3055. i will be back.

Mark

I was telling @general Jim that I built the multivibrator also and the output rectified was 0.12v .  If I tested without rectification, the meter wont show anything, 0, nada.
If @ist gets the whole thing going maybe it is better to get money to buy one already made from him, then use it to learn the principles involved and as a light source as well.

Jesus

[Mk1]

@nievesoliveras

i have built the 12volt to 230ac , for telia, and not really impress, i can't tune it well, and takes twice the the parts.

Remember if you don't put a rectifier on it , your meter it will show nothing, have you connected a led on it for fun?

Mark

I don't think your phone wire helps.

[nievesoliveras]

@all

Up to this moment we have this:

Any suggestions for the circuit to use?

Jesus

[nievesoliveras]

@nievesoliveras

i have built the 12volt to 230ac , for telia, and not really impress, i can't tune it well, and takes twice the the parts.

Remember if you don't put a rectifier on it , your meter it will show nothing, have you connected a led on it for fun?

Mark

I don't think your phone wire helps.

I connected a red led that its the easiest one to light and it did not light, then when I rectified it and measured it, it gave 0.12v dc output only.
I will try to use the primary as secondary and the secondary as primary and test again.

Jesus