Joule Thief

[Artic_Knight]

Ah, I am close.
I just put a 33ohm resistor at the t-base and the scopr says I have
475 Volts at
14.5KHz

My tube is 7 volts. so I will see if my hardware store has any new 4 watt arrivals.

The other thing I just noticed is that the neon goes on only one side at a time. I have taken out all the diodes etc that would give the ckt a polarity and I guess it is down to the unbalanced primary.

thanks for your help.


I see. O.K.

jeanna

hey jenna if these are AC neons like the ones i think they are used to check for AC current then they will light the other side when current flows the other direction, or in the case of AC both will light.

[Artic_Knight]

currently im playing with 2 electrodes outside for a earth battery that is generating 0.8v at 3mah now i thought this would be sufficient to even partially light the joule thief im working with but apparently im not using the right configuration because im unable to get it to work. ill have to tweak it. im going to try and see how far i can push these ground electrodes just for giggles

if anyone has some suggestions to try with ground electrodes at 0.8v and 3mah speak now. if i have the parts ill most likely try it.

one experiment i want to try is finding a way to oscilate it for a knock off of the tesla radiant oscilator.

something else im curious about is possibly testing a tesla pancake coil from it just to see what the results are.

let me know

[xee2]

@ altrez

I meant to add that it is not a stupid question, but somehow that got left out.

So far I am only producing about 1500 volts with JT and tube is definitely not full brightness yet.

[Pirate88179]

@ altrez

I meant to add that it is not a stupid question, but somehow that got left out.

So far I am only producing about 1500 volts with JT and tube is definitely not full brightness yet.

Xee2:

OK, I have another stupid question for you.  (I know his question was not stupid, but mine is, ha ha)

I have a catalog where I can buy a stun gun (about $70.00) that puts out 1.5 million volts. (ouch)  It is powered by a nine volt battery.  Now, whatever transformer they have in that thing must have a hell of a secondary, and I was wondering if one were to take it apart and supply voltage like from an AA battery....what would happen?
Would it be linear to the supply voltage or power?  Like: 9/1.5 volts =6.  So would the 1.5 million volt output now be 1/6 of the 1.5 million volts? (250,000 volts)  If so, this would be one hell of an output and may run several cfl's or tubes and may even blow some up.

Maybe whatever losses are inherent in that transformer would be exaggerated at the lesser input voltage so it might not be a full 1/6 of the 1.5 million?

I have been thinking about this ever since I saw it in a catalog a few weeks ago.  Just imagine if this would run off my EB and even if I only got (only, ha ha) 100,000 volts, that would still put on quite a light show.  What do you think?

Thanks.

[xee2]

@ Pirate88179

I have a catalog where I can buy a stun gun (about $70.00) that puts out 1.5 million volts.

And I have seen adds for gadgets that will let you get 1000 mpg. Before sending money I suggest you find out how they are testing to prove they have that voltage. I think it is a scam. I think that would be about a 4 foot spark in air.