Radio scan controller?

[Plinio Andres Barraza]

Thanks for the response Arthur, I guess there is no need complicate things
since there are simpler solutions

Plinio




On Thu, 5 Nov 1998, Arthur Harrison wrote:

> One problem with varicaps is that the signal voltage,
> as well as the control voltage, modulates their capacitance.
> Also, standard varicaps have a low capacitance, generally in the
> picofarad range. Also, the ratio of capacitance
> is generally limited to less than 3:1, and that is with a very
> large difference in control voltage.  Their are some exotic types which
> exhibit larger capacitances (around 500pF) and ratios (15:1).
> These devices do not have a linear relationship of capacitance to
> reverse voltage.
> 
> -Art
> 
> -----Original Message-----
> From: Plinio Andres Barraza <pab210 at is8.nyu.edu>
> To: terry michaels <104065.2340 at compuserve.com>
> Cc: Chris (the Hex) <the_hex at relay-1.ziplink.net>; synth
> <synth-diy at mailhost.bpa.nl>
> Date: Thursday, November 05, 1998 6:57 AM
> Subject: Re: Radio scan controller?
> 
> 
> >
> >
> >Terri:
> >
> >You mentioned varicap diodes in a recent message.  I happen to be very new
> >to electronics so I really know very little, but I was wondering, are
> >these varicap diodes useful for audio range applications?  It seems to me
> >that this would be an interesting way to give V controll to oscillators
> >or filters.  Is this the case?
> >
> >Plinio
> >
> >
> 
>