Here is a url for one of the excellent WA1ION website pages:
http://members.aol.com/DXerCapeCod/pennant.htm  
There is plenty more on the site, so explore!
Bottom line is to use your coax feedline to also send out a DC
control voltage to tune your Vactrol remotely from the radio room.
73, David K3KY  
Kelley wrote:
I just bought a few vactrol's from B G Micro for use in my K9AY antenna in
place of the fixed termination resistors. Looking at some older posts, it
appears that the way to use them is with a 1k pot connected to the 12v
supply. Is this how folks do this? There's really no documentation with the
vactrols, what about controlling current, etc.?  
Thanks, 
 
Kelley - WØRK 
 
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