On Sun, 20 May 2001, Alexandre Domingos F. Souza wrote:

> >(BTW, a better way to control the frequency is to PLL the RC oscillator on a PIC
> >- something else Mike has done).
>
>         Nice idea...I'm working on it :oD

What've you done so far?

Mike's approach was to vary the capacitance using a varactor diode. He
controlled the varactor's bias voltage using filtered PWM.

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