RE: Aluminum tape problems?

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Lau, Gary" <gary.lau@xxxxxx>

I have seen the same thing (small sparks between adjacent, overlapping
tape strips) occurring when the tape is applied on top of an insulating
layer above the corrugated aluminum duct.  I have wondered but not
determined if this diminishes performance.

To solve the problem though, I created a press-fit between the center
disk and the toroid with some EMI gasket material, removed from some
larger computer assemblies.  See
http://www.laushaus.com/tesla/foamtoroid.htm.

Regards, Gary Lau
MA, USA


> Original poster: "Black Moon" <black_moons@xxxxxxxxxxx>
>
> Hi, i have noticed some problems with my alumium tape covered toroids,
> theres slight arcings beween the peices of tape when I draw an arc off
the
> toroid, opon checking with my DMM, many peices of tape are open
circuit to
> nearby peices of tape, I assume the glue is acting like an insulator
and
> was wondering what exactly I could do short of compleatly redoing it?
I was
> thinking mabey a thin copper wire wraped around the outside or inside
and
> covered in foil tape (and carfuly slit the edge of each foil tape I
add,
> bend it under, and then overlap that with my next peice to make sure
the
> additional tape is conductive)
> or should i just do a thin copper ring around the outside without any
tape
> and just let friction hold it there or say 4 small peices of tape
>
>