[sdiy] varactor/varicaps?

[lanterma at ece.gatech.edu]

They're kind of useless for audio - there's not enough variation  
available. They're really for radio frequencies.

I had a student try to build a filter with them once, no success at  
all. Rapidly switched to another project.

Sent from my iPhone

On Nov 18, 2010, at 3:40 PM, "dan snazelle" <subjectivity at hotmail.com>  
wrote:

> anybody know much about varicaps? they sound too good to be  
> true...voltage variable capacitance up to 200pf?
>
>
> of course a lot of them come in weird form-factors (sot-23,etc)
>
> anyway, wondered why i never see them in any projects.
>
> thanks
>
>
>
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