Topband: FW: Commond mode choke for Beverage

[Jim Brown]

On Mon,10/12/2015 8:23 AM, Bill Hider wrote:
> Use 9 TURNS on a core-stack of five (5) of  P/N 2631803802 cores. That’s the Mix #31 core.

Bill,

A 5-high stack of cores is only needed to handle high power. This is an 
RX antenna, so suitable choking Z can be obtained with more turns on a 
single core. See the measured data for 1-14 turns of small diameter wire 
on #31, #43, #77, #78, and #61.  #31 is the best material below 5 MHz.

73, Jim K9YC