[Boatanchors] Four Course Range Filters

[Wilson Lamb]

Four course range filters.  I remember calling the ranges AN ranges.  They 
are down below 500KHz.
Two filters available, a Kenyon and a Bendix.
Selling for $20 ea, shipped to you.
Picture available.
See note from Emil, below.
WL

-----Original Message----- 
From: Emil Dular
Sent: Sunday, October 16, 2016 7:37 PM
To: Wilson Lamb
Subject: Re: [Boatanchors] Range Filters

They were for the old four course radio ranges that predated VORs.
There is an operational range station on a private strip in Tennessee.
Here is a link to a video that shows how it works.
https://www.youtube.com/watch?v=p-VqtNY8vpw