Re: was Re: depotting/ now flyback circuits

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

Original poster: "Jonathan Peakall by way of Terry Fritz <twftesla-at-qwest-dot-net>" <jpeakall-at-madlabs.info>

Jimmy,

Some flybacks have multipliers and other stuff in them. Look for secondaries
that are disc shaped rather than drum shaped. You can see some pics of
various flybacks and other info at:

www.madlabs.info

Look in the "misc HV" section. Fair Radio Sales (linked on the site, don't
have it handy) has some flybacks that I have been having fun with, 3 for
12$, good deal. If my meters and probes can be believed (which I don't
really, RFHV is funny stuff) I have pushed 40-50kv out of these. If not that
much, a lot :-) !!

With the one you have, try grounding various pins while checking for output
from the HV lead. I have managed to get *something* out of any flyback I
have tried, except one with a shorted secondary. Keep trying, flybacks are
fun!

Regards,

Jonathan Peakall

----- Original Message -----
From: Tesla list <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Monday, June 03, 2002 6:51 PM
Subject: Re: was Re: depotting/ now flyback circuits


> Original poster: "jimmy hynes by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<chunkyboy86-at-yahoo-dot-com>
>
> i tried doing that but there were a few pins and wires
> going into it that didnt seem to connect to anything.
> im guessing there are more diodes buried in there
> which will be like a shorted coil in there. what would
> be the best way to deal with it?
>
>
> >Hi Jimmy,
> >
> > Find all of the windings and which pins they connect
> > to using an
> > ohmmeter.  Then ground one pin from each set of
> > windings.  That way you
> > are certain to have the HV ground return grounded.
> > Then wind your own
> > primary with 20-30 turns of wire on the ferrite.
> > After that you can
> > build either the self-oscillating type of driver or
> > the tuned driver.
> > There are schematics all over the web for this type
> > of circuit.  Rob.
>
>
>
> =====
> JImmy
>
>
>
>
>