Re: cardboard secondary form?

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

Original poster: "Daniel Barrett by way of Terry Fritz <teslalist-at-qwest-dot-net>" <dbarrett1-at-austin.rr-dot-com>

     Those cardboard tubes work great- I had good results by cleaning the
outside with a rag damped in alcohol, then coat inside and out with
polyurethane. My coil is at

http://www.hot-streamer-dot-com/temp/db_single_MOT_coil_2002.09.27.zip

if you want to take a look-
db

----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Tuesday, January 14, 2003 8:30 AM
Subject: cardboard secondary form?


 > Original poster: "by way of Terry Fritz <teslalist-at-qwest-dot-net>"
<Beans45601-at-aol-dot-com>
 >
 > I was walking through Home depot today and noticed that they were selling
 > big (8" i believe) cardboard tubes (about 1/4 thick i think) for pouring
 > concrete forms. Could you use one of these to wind a secondary? what would
 > you have to do you prep the cardboard. Also, i am remotely thinking (far
 > far off in the future) of building twins. Are their any good web sites
that
 > explain what you have to do different to build twins? I have never seen
one
 > and been looking around for a while.
 > Thanks
 > Adam
 >
 >