Re: Aluminum tape on toroids? What about the sticky side being nonconducting?

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

Original poster: "Gerry Reynolds" <gerryreynolds-at-earthlink-dot-net> 

Hi Gary and Jack,

There is available a copper tape with a conductive adhesive I've used at HP
for plugging RF leaks in boxes under developement.   Has anyone experimented
with this?

Gerry R



 > Original poster: "Lau, Gary" <gary.lau-at-hp-dot-com>
 >
 > Your point is well taken.  While it won't affect the capacitance, the fact
 > is that adjacent strips of AL tape are not all in contact with each
 > other.  I covered the AL duct for my mini coil with paper Mache to smooth
 > it out, then covered that with AL tape.  I observed several places on the
 > surface with small arcs occurring between adjacent tape strips, despite
 > large areas of overlap.  Surely this diminishes performance.  I corrected
 > the problem by adding a foil tape-covered wooden center disk somewhat
 > smaller than the hole in the toroid, and pressing a conductive EMI gasket
 > between the disk and the toroid, to short together all of the strips.
 >
 > Regards, Gary Lau
 > MA, USA
 >
 >
 > Original poster: Phlunktfysics101-at-aol-dot-com
 >
 > I see lots of people using aluminum tape on their toroids.  My toroid is
 > made from aluminum duct riveted to a water heater pan, and I'd love to
 > smooth it out with aluminum tape.  But this tape has an adhesive backing,
 > making it nonconductive on the backside.  With no electrical conduction
 > between the aluminum side of the tape and the aluminum duct, what effect
 > will this have on performance?  And couldn't the adhesive act like a
 > dielectric and add more capacitance between the two aluminum surfaces
(tape
 > and duct)?  It must not really matter, but I figure I had better ask the
 > pros before wasting money on AL tape.
 >
 > Thanks!
 > Jack
 >
 >