Re: 20khz transformer

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

Original poster: "D.C. Cox by way of Terry Fritz <twftesla-at-qwest-dot-net>" <resonance-at-jvlnet-dot-com>


With the higher frequency (above 60 Hz) you might want to use the "fast
recovery" type of HV diodes.

Dr. Resonance




----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Tuesday, October 01, 2002 3:56 PM
Subject: 20khz transformer


> Original poster: "Mark Rossman by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<marossma-at-oakland.edu>
>
> Hello,
>     I have successfully used a 20khz transformer on a small coil, 3x15 in
> secondary.  I used 490 pf caps and I get small arcs off of it(5-6 in).  I
> have always assumed thats because im way under cap.  According to recent
> posts it shouldnt be able to work, although my cap is way to small so
should
> take less time to charge.
>
> So will recitfing it into DC pulses improve performence?  This also makes
me
> wonder, about only allowing 120v input and making a voltage doubler on the
> HV end.  Any other ideas to help my performace would be appreated too.
like
> details on the recitifier grid refered too(unsless its just a bunch of
> diodes in series to handle the high voltage)
>
>                                                     thanks
>                                                         Mark
>
>