[sdiy] .01uf Silver Mica

[Ian Fritz]

As I understand it, silver mica has a large dielectric memory (soakage) 
effect.  [See Horowitz and Hill, but note that they seem somewhat confused 
about dielectric absorption and dielectric memory, which they consider the 
same thing.  Dielectric absorption comes from the imaginary part of the 
dielectric constant and increases with frequency.  Dielectric memory is a 
permanent (DC) change in zero-field polarization.]


At 08:07 PM 1/24/06, harrybissell wrote:
>Tempco is about the same, dielectric absorption of silver
>mica is a little worse (not much)... temperature range of
>silver mica is WAY better... but unless you gig the Mojave
>Desert at noon, in July... under the hood of your car... :^P
>
>H^) harry
>
>James Patchell wrote:
> >
> > I am not sure what the tempco of the Micas are, but Polystyrene has a
> > tempco of about -100ppM.
> >