Re: flyback questions

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "jimmy hynes by way of Terry Fritz <twftesla-at-qwest-dot-net>" <chunkyboy86-at-yahoo-dot-com>


2-4 turns? i was told 20-30 when i was making it. i would try less turns, but
between the time i sent the email and the time i got the replies i killed it. i
was charging 5 glass bottle caps and getting sparks about quarter inch, maybe
3/8 inch long and it stopped working. it got really quiet and started pulling
alot more amps. i know its not my switch or anything in my circuit because it
works fine with an ignition coil. when i looked at it on the scope i was
getting a really high freq. ringing . the high freq. and more current makes me
think the inductance went down, and the only way that could happen is a short
in the secondary. i disconnected the secondary so any short would have to be
internal. could i have killed the flyback? thats the only thing i can think of,
but i thought i should get more voltage than that. if i did its no big deal
because there are 3 computor monitors in a nearby river that i could yoink the
flyback out of. 

  Tesla list <tesla-at-pupman-dot-com>
>
>  wrote:  
> Original poster: "Jonathan Peakall by way of Terry Fritz " 
>
> Jimmy,
>
> Try less turns on the primary. This increases the turns ratio, so you get 
> more voltage. I usually use between 2-4 turns. I have even used one, but the 
> flyback gets hot pretty quickly. There is some more flyback stuff on my 
> website.
>
> Regards,
>
> Jonathan Peakall
>
> www.madlabs.info
>
>
>
> > 
> > i just got my flyback driver working yesterday, but i think i should be 
> > getting more voltage out of it. i took it from a dead computor monitor, so 
> > its the kind with the diode and the cylindrical secondary. how long should 
> > you be able to pull the arc out? how long should you be able to start it? 
> i 
> > can only pull it out about a half inch now. about how many turns are there 
> > on the secondary? i need to know! about how many turns i should have on my 
> > primary. right now i have 200v on my 20 turn primary and my switch is 
> > limiting me to 250 volts. 
> > 
> > 
> > JImmy
>
>
>
>
>
>
>
>
>
> JImmy
>
>
>
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