Topband: Shunt feed on a budget

[Richard Karlquist]

Arcing in the air insulated section isn't
the only problem.  Frequently, you will
get arcing in the thin air gap between
the dielectric and the metal plate.  This
gets worse for high permittivity dielectrics.
This is why you rarely see this type of 
capacitor in high power systems.

Rick N6RK

> -----Original Message-----
> From: topband-admin@contesting.com
> [mailto:topband-admin@contesting.com]On Behalf Of BOB RIESE
> Sent: Sunday, January 27, 2002 1:14 PM
> To: topband@contesting.com
> Subject: Re: Topband: Shunt feed on a budget
> 
> 
> If you are able to slide the glass in/out between the cap. plates
> then you have a varible cap. The only problem may be arc over
> where the plates are seperated only by air and not glass 
> 
> Bob  K3DJC
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