Balanced to Unbalanced WHAT ?

"Balun" is a contraction of "Balanced to Unbalanced "TRANSFORMER".

What is the transformation ratio of the W2DU "balun" and other devices
which serve a similar purpose? Between which pair of impedances does
it match?

If YOU cannot provide answers then there are many old-wives who can.

There is a program named BALCHOKE available free from my website.

I have no wish to participate in futile arguments about the meaning of
words. They can drive one to drink
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Regards from Reg, G4FGQ
For Free Radio Design Software go to
http://www.btinternet.com/~g4fgq.regp
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"Wes Stewart" wrote:

W2DU's device is not a balun. It has no ratio - it is just a
choke.
It behaves in the same way as a single bifilar winding on a ferrite
rod, or on a ring.

Wherever did you get the idea that a balun "must have a ratio?"

"Balun" is a contraction of 'Bal'anced to 'Un'balanced. Walt's
device
certainly fulfills this function.

[remaining bafflegab snipped]