[CW] (OT) CW Resonant Speaker

[stan levandowski]

For those with interest I just put up a video comparison of a standard 
"communications speaker" vs. the "CW Resonant Speaker" detailed in the 
article of the same name in the February 2017 QST, page 43.

Included for Elecraft KX product owners is the amp necessary to use the 
headphone jack output.


Click on:  https://www.youtube.com/watch?v=htjgeHEf3-g


73, Stan WB2LQF
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