Posted by
Fred Townsend on
Apr 30, 2012; 4:10pm
URL: http://elecraft.85.s1.nabble.com/Loading-inductor-Question-tp7513850p7513998.html
Ken:
Toroidal cores have many fine qualities for loading coils. Of course not all
core have the same qualities so be sure you have the right Al rating. You
will want a low rating. Also remember you will lose those fine qualities if
you saturate them so be sure your core is big enough for 250 watts (2.5x
safety margin). I use Teflon wire on mine for lower losses. Finally, it is
very difficult to tap a toroid whereas coil taps are easy on an air core
coil. Don't use toroids if you need taps.
73
Fred, AE6QL
-----Original Message-----
From:
[hidden email]
[mailto:
[hidden email]] On Behalf Of Ken Alexander
Sent: Monday, April 30, 2012 8:15 AM
To: Elecraft
Subject: [Elecraft] Loading inductor Question
Folks,
Given that inductors on toroid cores are used extensively in autotuners, is
there any reason (assuming I choose the right size core, made of the correct
material for the application and winding it with the right size wire) for
not using one as a base loading inductor on a vertical antenna? I'm talking
100 watts maximum transmitter output here.
Any down side to doing this?
Thanks and 73,
Ken Alexander
VE3HLS
______________________________________________________________
Elecraft mailing list
Home:
http://mailman.qth.net/mailman/listinfo/elecraftHelp:
http://mailman.qth.net/mmfaq.htmPost: mailto:
[hidden email]
This list hosted by:
http://www.qsl.netPlease help support this email list:
http://www.qsl.net/donate.html______________________________________________________________
Elecraft mailing list
Home:
http://mailman.qth.net/mailman/listinfo/elecraftHelp:
http://mailman.qth.net/mmfaq.htmPost: mailto:
[hidden email]
This list hosted by:
http://www.qsl.netPlease help support this email list:
http://www.qsl.net/donate.html