On Tue, 07 Feb 2012 16:15:44 -0500
Mike Naruta AA8K <[email protected]> wrote:
> On 02/07/2012 03:59 PM, Attila Kinali wrote:
> > while TV and radio uses 75R. (there was once a reason
> > for this, but i don't know it).
>
> A 4:1 balun takes old 300 ohm twinlead to 75 ohms.
Thanks! This explains half it :-)
Do you know why a 4:1 balun was used?
And do you know why other RF stuff and lab equipment is 50R?
Attila Kinali
--
Why does it take years to find the answers to
the questions one should have asked long ago?
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