Buck wrote:
I have been looking at OCF dipoles and there are some that don't
appear to need a tuner when using a 6:1 balun.

I ran an OCF in college with a 6:1 air core balun from
Heathkit. It worked well but my transmitter had a
built in adjustable pi-net tuner. What are the dimensions
of the above OCF that you have described? Most OCF's that
I have modeled work just as well with a 4:1 balun as they
do with a 6:1 balun.

Jerry Sevick, W2FMI, describes a 6.25:1 balun in "Building
and Using Baluns and Ununs". It is a 1:1.56 UNUN followed
by a 1:4 BALUN.
--
73, Cecil http://www.qsl.net/w5dxp


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