On Wed, Mar 4, 2015 at 12:17 PM, Bob Blick <bobblick@ftml.net> wrote:
> Hi Joe,
> You could use a one transistor pass element to multiply a capacitor. Let
> me see if I can find an example on the web... nope. here's napkin art.
>
> Bob

ESP has a good page on the concept:

http://sound.westhost.com/project15.htm
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