[Antennas] coil wiper

[fkamp at comcast.net]

DavidE Benedict wrote:
> 
> whitaker at ieee.org writes:
> >de WB2CPN                     2005.02.16
> >
> >Anyone try sliding a close spaced insulated
> >metal tube up inside the coil so as to form a
> >capacative shunt, and negate part of the windings?
> >
> >73  Clete
> 
> Haven't heard of this. Might be fun to try it.
> 
> anyone else?
> 

I dont know what is meant by 'capacative shunt', but any slug tuned coil
form I ever used had a rod of material attached to a screw drive that
allowed frequency adjustment.  They did not have enough adjustment to
change bands but would certainly allow peaking a frequency within a
band.

Regards,
Frank Kamp
k5DKZ