Re: death of a pancake

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

Original poster: "marc metlicka by way of Terry Fritz <twftesla-at-qwest-dot-net>" <mystuffs-at-orwell-dot-net>

Hi DWP,

  Yes you are most likely right on the mark here, I knew deep down that
a day between coats would be best. I was way to Impatient and it cost me
a "BUNCH" of man hours and a good chunk of wire, A lesson learned is
Help for all!
  The sad thing is that the transformer varnish i used is of the "air
dry\low bake" verity (place "bummer" smiley here).
I could have said that the windings were burnt beyond repair, maybe they
are, but i want everyone on the list to learn from my mistakes right
along with me. I try to remember others mistakes that are posted to help
me along, just repaying the favor.

  I will wind another 20" coil, I will varnish it right from the start
and i will bake it nice and hard! I don't think i will fiberglass it
like was mentioned, the wood dust filler would give a much lower
breakdown voltage. 
  I think i will build this one with a few added features that i thought
about before and i will make a much nicer primary support system that
will have interchangeable coils.
  one thing for sure, these coils are challenging!
I will keep all updated,
Marc M.
Geek #1055
  

Tesla list wrote:
> 
> Original poster: "davep by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<davep-at-quik-dot-com>
> 
> I May be off base here, or saying something everyone knows,
> but, in case...
> 
>         Some coatings do not 'dry' immediately.  Can take LOTS of time
>         (up to days) to completely 'dry'.  In many cases, there is more
>         to 'drying' than evaporation of solvent (drying), but fairly
>         complex chemistry goes on (mostly polymerization).  Some of
>         these reactions take time.  An added layer, added too soon,
>         can 'trap' vapors still working out from an (apparently)
>         'dry' underlayer.   Or solvent can leech back down in...
> 
>         best
>         dwp