Joule Thief

[guruji]

Gagdetmall very cool about that circuit of the Bcap I am looking forward to replicate one for a water heater. .
Nice nice keep it going and wish you Happy Christmas and a happy New Prosperous Year to you and all the guys in this forum.
Thanks

[jeanna]

Hi guys,
The coated toroids are all weaker and are coated to  insulate from heat.

I did not have any problem because of the newby wire.
I am convinced it is the best way to get around this.
Mine got up to around 2,000 volts with 330 turns and there was not a varnish problem.
I used 28 awg from gobrushless.
He is a very nice man and quickly sends the wire out and I think we can support him.

MMI has $ 27,000 dollar minimum and I think they are not about to paint the OW for us, but they might offer you one of the less good ones, thinking you care so much about the paint.
So, please do not confuse this.
It would be a real shame to get an order of the wrong thing.

I choked my J type yesterday, and I am taking it apart to re-do it.
I think I finally found a dead spot.

jeanna

[Pirate88179]

Jeanna:

Wow, 2,000 volts...that is cool!

I have had no problems..yet..either but, do you see a problem at this time with painting them or using the dipping coating I posted about above just to prevent any later possible arcing?  Do you think this will cut down on performance in any way?
I agree the newbie wire from gobrushless has a good thick insulation coating, thanks for that link.  My wire came very fast...good folks to deal with.


Bill

[jeanna]

do you see a problem at this time with painting them or using the dipping coating I posted about above just to prevent any later possible arcing?  Do you think this will cut down on performance in any way?
I agree the newbie wire from gobrushless has a good thick insulation coating, thanks for that link.  My wire came very fast...good folks to deal with.

I have no way of knowing if it will change it, but I think it will.
The only way to know is to make 2-- 1 with, and 1 without.
It is not necessary to put 300 turns on the secondary.
50 would tell the tale if there is a difference.
but
Why take the chance?
If we can get around the problem by using the newbie wire, lets do that, and fool around with the coating later, after we have a good source for the toroid, and we all have enough to experiment with etc.

jeanna

[kooler]

@xee2, yea thats how i done it... its not tuned yet.. one toroid has 30awg and the other has 26awg
and the middle has 4 turns base 4 turns collector...
i just threw it together to show you guys... the ma's draw
the secondary's wired together different.. just switch one of the wires on the right toroid