[sdiy] Being accurate

[Amos]

Some kind of cheap-o comparison bridge? I can't guess as to the specifics
though... I assume using a small number of passive components... perhaps
wirewound instead of soldered, to avoid joint failure @ extreme temps... am
I anywhere in the ballpark?

On 10/8/05, Paul Schreiber <synth1 at airmail.net> wrote:
>
> About 10 years ago, I had to design a capacitance meter that could resolve
> 10fF
> (10 femtofarads) on a scale of 0 to 100pf. For $25. Working outside at
> -40C to
> +100C.
>
> Any guesses how it was done?
>
> Paul S.
>
>
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