[ARC5] Smart People: Attenuators

J. Forster jfor at quik.com
Wed Mar 2 23:01:04 EST 2011


And virtually all the power goes into the 7 Ohm.

A series cap of about 50 pF would help a lot too! Without it, youb cannot
resonate the output circuit.

-John

==================


> P.S. One cool thing:  As long as we're attenuating 14 dB or more,
> we can use the Pi Attenuator to match a Lo-Z outpu,t like that
> from many aircraft rigs, to the 50-Ohm input of the amp.
> Input-series-output 7-590-54 Ohms gives us 36 dB down
> down and you get to watch the Antenna Current meter swing ;-).
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