Re: death of a pancake

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

Original poster: "Barton B. Anderson by way of Terry Fritz <twftesla-at-qwest-dot-net>" <tesla123-at-pacbell-dot-net>

Hi Marc - 

Sorry to hear about the mess. Guess we are all getting our share of flat coil
battlewounds. I'm getting ready to coat my flat coil (hoping not to screw up
like I did on the first coil). To tell you the honest truth, considering how
coating affects tape adhesives, I've come to a conclusion that Dave came to the
right basic idea. That is, to physically hold the wire in place. He used
bricks. 

I don't plan to use bricks, but I think I'll use thin runners (plexi on edges -
enough to hold wires in place until dry). These runners may end up fixed in
place (then flip the coil over and remove the plexisheet - add coatings to this
new top side). 

Actually, I think I'll wind a tiny little experimental coil first and perform
the process (I've got a feeling the carpet tape adhesive will allow a
plexisheet to be removed after a coating is added on the opposite side because
of the way the adhesive quality's are lost during coating). 

Best of luck with your new one, 
Bart 

Tesla list wrote: 
>
> Original poster: "marc metlicka by way of Terry Fritz <twftesla-at-qwest-dot-net>"
> <mystuffs-at-orwell-dot-net> 
>
> All, 
> I killed my flat coil yesterday. I thought i would be ok if i put very 
> thin coats of insulating varnish on my coil, allowing each to dry before 
> the next. Well the first coat brushed out real thin, dried very nice, 
> the second coat went on ok, dried, the third coat went on. 
> Then all the varnish got soft and Bloop, most of the turns raised up. 
> This wasn't bad enough, but my idea of pushing them back down just made 
> matters worse and the next thing i knew it, everything i tried went down 
> hill from then on. 
>   Now i have a very messed up, crossed wires, hard as a rock, plant 
> stand? 
> I'm going to wind another one and this time i will do it in stages, 1\4 
> of the total at a time with some alkyd varnish on and place under an IR 
> heat lamp. Once the next one is done i should be able to bake a thick 
> layer of varnish over the complete coil, This should halt all but the 
> nastiest coupling induced racing arcs, (i hope) 
>   right after i pulled the white PVC tape off the windings i thought 
> about pouring about 1\2" of wax over the windings, lack of patients made 
> me do the wrong thing, but i think wax would have worked. 
>   sometimes you win a few, sometimes you loose a few and sometimes i 
> just mess up! 
> Take care, 
> Marc