RE: flyback resonant frequency (fwd)

["Tesla list" <tesla@xxxxxxxxxx>]

---------- Forwarded message ----------
Date: Thu, 14 Jun 2007 19:19:12 -0400
From: "Lau, Gary" <Gary.Lau@xxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Subject: RE: flyback resonant frequency (fwd)

I build a TCT and it's a very handy tool.  It sure beats dragging out a
scope and signal generator!

But I have a secondary output from the TCT feeding a small DMM frequency
counter.  I took a good amount of time to make an accurate frequency
dial, but even so, the dial is just a ballpark indicator.  And you would
still need a scope or counter for an initial calibration.

Gary Lau
MA, USA

> ---------- Forwarded message ----------
> Date: Thu, 14 Jun 2007 16:07:23 -0400
> From: Scott Bogard <teslas-intern@xxxxxxxxxxx>
> To: tesla@xxxxxxxxxx
> Subject: Re: flyback resonant frequency (fwd)
> 
> Brett,
>      I downloaded TCT plans a long time ago, but never took the time
to
> build one (maybe now I will), that o-scope looks very nice, I think I
might
> get one (it comes with a free multimeter right now), thanks for
pointing it
> out.
> Scott Bogard.
> 
> 
> >From: "Tesla list" <tesla@xxxxxxxxxx>
> >To: tesla@xxxxxxxxxx
> >Subject: Re: flyback resonant frequency (fwd)
> >Date: Thu, 14 Jun 2007 11:31:18 -0600 (MDT)
> >
> >
> >---------- Forwarded message ----------
> >Date: Thu, 14 Jun 2007 10:35:01 -0700 (PDT)
> >From: Brett Miller <brmtesla2@xxxxxxxxx>
> >To: Tesla list <tesla@xxxxxxxxxx>
> >Subject: Re: flyback resonant frequency (fwd)
> >
> >Scott,
> >
> >Finn's method would be excellent, however, you may not
> >have the experience or parts to make use of it.
> >
> >Another idea is that you could build Terry Fritz's TCT
> >(tesla coil tuner) and use that to determine Fo.  It
> >is simple, and the plans are on hot-streamer
> >somewhere.  I am sure someone on this list could point
> >you in the right direction...I have it on my HDD too.
> >
> >A nice scope is the Velleman HPS10 personal scope.
> >It's small, battery powered, and actually does
> >frequency calculation for you for when you are in a
> >hurry.  Great price too!  Don't go solid state without
> >it!  I love mine.  Plus I have an old Tek too.
> >
> >-Brett
> >
> >
> >--- Tesla list <tesla@xxxxxxxxxx> wrote:
> >
> > >
> > > ---------- Forwarded message ----------
> > > Date: Thu, 14 Jun 2007 08:53:19 +0200
> > > From: Finn Hammer <f-h@xxxx>
> > > To: Tesla list <tesla@xxxxxxxxxx>
> > > Subject: Re: flyback resonant frequency (fwd)
> > >
> > >
> > >
> > > Scott
> > >
> > > I just did this the other day.
> > > The flyback was equipped with an external primary
> > > coil, and the current
> > > trough this coil was controlled with an IGBT.
> > > Using my function generator in aquare wave mode, I
> > > manually swept the
> > > source - gate of the IGBT, to find the best output.
> > > In this case 6,8kHz, which I read off with my DMM.
> > > I have a scope, so rechecked with that too.
> > >
> > > Cheers, Finn Hammer
> > > Tesla list skrev:
> > >
> > >
> > >
> > >
> >
> >
> >
> >
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