Topband: Core for K9AY loop transformer
fdavis at nfld.net
Sun Mar 25 13:16:15 EST 2007
After some encouragement from Eddy VE3CUI I am mobilizing to erect a K9AY loop. Just as soon as the meter of snow that is left in the back forty melts ! The 9:1 Transformer required is recommended to be wound on a 0.75 to 1.00 inch toroid of type 43 material. In looking on the FAIR RITE web page I see that type 43 material is spec'd for freq range 25-300 Mhz. So why use a material for that range...what gives?...I guess its not all that critical.
Secondly is there anyone on the list with one of these toroids available?
I have been using a coax loop for about 5 years now and its time to move on! .....
73 Frank VO1HP
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