Re: Capacitors.........

To: tesla-at-pupman-dot-com
Subject: Re: Capacitors.........
From: "James" <elgersmad-at-email.msn-dot-com> (by way of Terry Fritz <terryf-at-verinet-dot-com>)
Date: Wed, 04 Nov 1998 06:51:51 -0700
Approved: terryf-at-verinet-dot-com

    Well, I already know about the internal construction, and they look like
a can, filled with carbon.  Somewhere after the dielectric isolation, there
is a layer of tantalum foil.  It is really looking like solid carbon's
reaction to tantalum.  It is that strange, and I was wondering, if anyone
has done any measurements, because Nikola Tesla did.  He measured the
capacitance of the Earth in respect to, a what I don't know, but his
determination was that the Earth's capacitance was at .1 uF or .01uF if I
don't remember rightly.  So, if tantlum is way up there just because of it's
chemical response to carbon, is there another metal that can do similar?  I
was once doing experiments with charging a 30 ft long piece of wire, and I
place some foil onto my tv screen before it warmed up.  Then I let it warm
up, when I hung a weight from the middle of the 30 ft piece of wire strung
with a little slack between two tacks.  It contracted when I shorted it to
earth ground as though the electrons were just occupying space.  So, there
must be a static value for any given element on the table of elements, and I
was wondering if there was a way to measure that.  Between earth ground, and
the block of metal itself being isolated from earth ground?

    I guess I'll have to do something pretty soon. Possibly with a roll of
quaters, because they're all the same size, and I can get allot of em'.







>Original Poster: Sulaiman Abdullah <sulaiman-at-lityan-dot-com.my>
>
>James, I've no data at hand but I know that tantalum capacitors are;
>1 polar (d.c. use only)
>2 very compact for their capacitance value
>3 very low impedance
>4 low voltage (of the types I'm familiar with)
>5 easily destroyed by over-volting
>6 very easily destroyed by reverse-volting
>7 not stealing the market for Aluminium electrolytics for high power
>use.
>
>hope that helps a bit.