Hey OM
The baluns I like to use are choke baluns and real transmission line
baluns, for ten meters and a 66% velocity factor coax that is 11ft of
RG213. That is 4:1 on ten meters only. And the high current, high
voltage nodes are at the ends of the coax.
73 OT
de N8ZU




On Jul 3, 6:50*pm, wrote:
On 2 Jul, *
* * *Michael wrote:

So....,does anyone have any plans for a 4:1 air core balun for feeding
450 ladder from a tuner that you have actually tested and used that
and it shows close to a 1.1:a SWR when presented with a 200 ohm load?

Why not just use a(n electrical) half wave loop of coax if you are only using
it on 10metres? Or even just a Pawsey stub for a balun and match elsewhere.
You can do a lot of (single band) matching with just a quarter wave of open
wire line with shorts/open circuits and taps.

--
* BD
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