Re: sealing a cardboard tube?

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

Original poster: "robert & june heidlebaugh by way of Terry Fritz <teslalist-at-qwest-dot-net>" <rheidlebaugh-at-desertgate-dot-com>

Adam: I dont recomend your choices, but here are some suggestions. The
sonotube must be well soaked with dilute laquer to seal all the voids in the
cardboard tube. SOLVENTS ARE FLAMABLE AND TOXIC. use good ventalation.
Denatured alcohol is a good cleaner, but rubbing alcohol contains water and
should not be used. To make a stopper you can use PVC plastic or glue
several layers of pressed cardboard into a thick layer and cut it to a tight
fit and glue it in place. when dry coat everything with several layers of
laquer. I used shellac to make my first coil, but good quality shellac is
hard to find today. Use only plastic, NO METAL, screws. Nylon screws can be
found at auto-zone or Home depot. With good care sono tubes will work well.
     Robert  H
-- 


 > From: "Tesla list" <tesla-at-pupman-dot-com>
 > Date: Sat, 01 Feb 2003 22:58:20 -0700
 > To: tesla-at-pupman-dot-com
 > Subject: sealing a cardboard tube?
 > Resent-From: tesla-at-pupman-dot-com
 > Resent-Date: Sat, 1 Feb 2003 23:06:17 -0700
 >
 > Original poster: "by way of Terry Fritz <teslalist-at-qwest-dot-net>"
 > <Beans45601-at-aol-dot-com>
 >
 > I just got sonotube (cardboard tube) from homedepot that I will eventually
 > wind my secondary coil on. I know first, to wype it down with an acholed
 > (is that a word?) rag. But, to seal it, what should I use? Also, they sell
 > circles that are (.5" wide, not sure...) made of mdf. They don't have the
 > size I need (or course), so I was thinking it would not hurt anything to
 > have an inch or two hanging over the side. I could get my friend too cut it
 > to the right size, but should I go trough the trouble? Could I use one of
 > these for the endcap for my secondary coil? And, would it be okay to use
 > metal screws to attach it to my sonotube?
 > Thanks
 > Adam
 >
 >