[TowerTalk] Which Balun with the TH7DXX

[Peter Voelpel]

A solenoid winding made of coax is more effective then those 4 wraps.
I use SCF12-50 Cellfex to wind my choke baluns.
30 turns on a pvc tube of 4-5" diameter do the trick (2000 ohms at 14MHz).

73
Peter

-----Original Message-----
From: TowerTalk [mailto:towertalk-bounces at contesting.com] On Behalf Of Jim
Thomson

##  coiled up coax is not the answer either, the Z is  too low.   Like
gerald sez,
the wire leads on the baluns output is part of the total DE ele  length. 
So if using coax... factor that in...and make the Y the correct length. 

##  4 wraps  of  213 U around   4 x 2.4 inch OD    type 31 ferrite will do
the trick
for a balun....