Re: [TCML] High voltage glue and ferrite cores

[Scott Bogard <sdbogard@xxxxxxxxx>]

Hi Steve,
     Is there any way one can vacuum pot at home?  As much as I want to
reduce complexity, longevity is a concern for me, I do have some vacuum
equipment for my plasma stuff, but in my head designing a rig to suck in
liquid epoxy or resin or wax or whatever without losing vacuum seems like
it would be a real bear...

Scott Bogard.

On Tue, Nov 29, 2011 at 1:10 PM, Steve Ward <steve.ward@xxxxxxxxx> wrote:

> Sounds like super glue (the acrylic based stuff) would do the trick for
> you.  Ive used it many times for HV applications.  To be honest, though,
> any flyback that isnt properly vacuum potted with the right insulation is
> likely to suffer from corona internally.  It may take years (or maybe just
> seconds) of occasional hobby use before this corona does its lasting damage
> of shorting out your coil.  Making HV transformers corona-free is hard.
>
> TSC is a good ferrite supplier, i use them myself.
>
> Steve
>
>
>
> On Tue, Nov 29, 2011 at 9:40 AM, Scott Bogard <sdbogard@xxxxxxxxx> wrote:
>
> > Hi All,
> >     Looking for suggestions for a glue that will be high voltage hearty,
> > trying to steer away from epoxies, or anything else that must be mixed,
> or
> > melted (tar, wax etc.)  This will be for securing the paper layers of my
> > flyback transformer together, I was leaning towards eithor rubber cement
> or
> > even plain elmers glue, but do not know if they will hold up ot HV or
> even
> > small amounts of corona, so looking for suggestions.  It must be cheap,
> and
> > easy, and a relatively fast dry time would be nice, I'd rather not take
> 40
> > days to put together a flyback secondary...  Also I found a potential
> > source for ferrite cores, has anybody had dealings with this company?
> > http://tscinternational.net/tscstoreUcore.html
> > I'm going to try and order tomorrow night and will share my experience if
> > anybody is interested, their data sheet says their large U cores are good
> > to almost 300 watts...
> >
> > Scott Bogard
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