[Amps] Pi-Net tank bandswitch question

[Radio WC6W]

Hi Charlie,
  If you connect the switch common to the high impedance end of the tank you'll add all the stray capacitance of the unused portion of the coil to the plate C.  Just what you are trying to avoid!

  The traditional output end connection adds this stray C to the load cap where it does no harm.

73 & Happy Post Thanksgiving,
   Marv WC6W 

http://wc6w.50webs.com/


--- On Fri, 11/28/08, Charlie Ocker <N9CO at aol.com> wrote:

<snip>
> 
> My question is this:  Most of the schematics that I've
> seen for a bandswitched
> tank show the switch common connected to the low impedance
> side of the tank.
> Is there a compelling reason for this?
> 
</snip>
> 
> Many thanks in advance,
> 
> Charlie  N9CO
>