Joule Thief

[kooler]

jesus on that website that java program..
a tank circuit self runs also.. with gain

play around with one inductor a one cap
it self runs

[IotaYodi]

what else could this yellow stuff be .. ?  it passed the acid test no problem

If you did this test yourself with the acid and testing stone and the color didn't change then its gold. If it turns a yellow-orange color it may be gold but a lower quality karat. If the area changes any other color - it is not Gold.

[jeanna]

well we got it tested and they called back ... 

on site they say it is verry high carrot

by the eye ... they left a msg ...  and said it was not gold ... lol

j  the dead spots?  humm is there 3 of em ...  is this where your  coils go?   

ist!


w

btw i like the blank cores ...  cus 2 bucks  is cheep ....i have a bunch of coloured cores now ... bairly looked at them yet .. but i will ..... simple to wind a jt on top of them...  like i said there tuned and capped already ...

Did you say when you were in the jewelery shop they tested it and it was gold for sure?

Then...

They left a message?
Did they "keep" it for more tests?


It is the specific gravity that is the real test.
This is why I am suggesting you do it yourself.
Did you do my stack of pennies test?

What does a bunch the size of a stack of pennies weigh?
And how much does a stack of pennies the height of the bunch weigh?
====

I am glad you saw your kids today.
The rest doesn't matter much. It just makes procuring things easier.
Kids matter.
=====
@All,

Dead spots.
I am testing the J core.
It looked really great but it is acting like a choke even though the inductance of the individual turns is as it was before.
But they do not behave like the inductance that is measured.
That is why I think it is dead spots.


This morning the 330 turns was at 4 volts.
I removed about 70-100 turns and added a couple of turns to both sides of the primary it is now up to 53v

I will continue to remove more secondary turns and see if I can move things around a little.

Thing is I had 173 volts with only 26T with my initial test before I "really" began winding.
Strange thing.

jeanna

[gadgetmall]

@ Jesus:

That is great!  I hope we can build it to prove it works.
Merry Christmas and Happy new Year to you too.

@ Gadget:

I happen to have a Darlington i was saving for just such an occasion.  Should I try that on my next large toroid wind?

Bill

Heck yea ! also a few post back i notice jeanna thought the grey was heat protection .wee it might be so it wont melt the wire but the coating is actually required in ul listed powersupplies to prevent shorting and fire . I got two grey one with my 4 uncoated and they are 4 inchw and they are very strong . also My toroid i fied with black take is mnore powerful than ever so no degredation at all with paint ,clear cot what ever but i suggest you use paint or clearcoat on the naked toroid and not your plastic dip . It will be very hard to wind as the woire will not slip like on paint and gaps will be there and its harder to wind if you cant slide the winding togeter took me a long time to wind on blacktape . Its Strogn now and lights up a 45 watt bulb so bright you cannot start at it . Need a difuser on it now . Yes put a darlington it and checkit out . Thans next on my list . also My current draw is way down now been running full blast all day long with a c battery . still bright !!

[Pirate88179]

xee2 the resistor type coils were used on up to 1974 on chevy and fords... and dodge used them up to 1991 model the resistor in the old ign coil was to block the very large spike that came from the voltage regulator that was mounted outside of the alternator
if you tore apart one of those old regulators you would see why...
two normally open contacts and one normally close ...
two coils in the volt reg 14-12 awgs coils in it
one coil is 30 awg about 800 feet of it

i forgot to mention
the resistor spark plugs and plug wires were redesigned for the radio problems

Yes and also if you used very heavy solid copper insulated wire instead of resistance spark plug wire, you get way better performance and better gas mileage....but, you mess up people's TV's and radios when you drive in their neighborhood and the FCC does not like that. Big fine for doing that.

Bill