In recent days on the QRP-L mailing list, the following remarks were
made by Tom Rauch, W8JI regarding the design of 4:1 current baluns:

"...it is impossible to build a 4:1 ratio current balun that
uses two 1:1 baluns on a single core."

and:

"It's well established any balun made up of series / parallel
transmission lines requires different voltages from the start
to finish of each transmission line. "

I have devised and modeled a 4:1 current balun using two 1:1 baluns on a
single core, and have tested a fully functional prototype. The design can
be built without any core, if so desired. The full disclosure of this
design with all theory, references, and test results can be obtained from my
web page at:

http://www.home.earthlink.net/~chris...k4to1Balun.pdf

The design proves beyond all reasonable doubt that the above statements to
the contrary are, to put it mildly, gravely in error.

Chris

,----------------------. High Performance Mixers and
/ What's all this \ Amplifiers for RF Communications
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\ _______,--------------' Chris Trask / N7ZWY
_ |/ Principal Engineer
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