[Amps] Tuner Loss

Ron Youvan ka4inm at tampabay.rr.com
Sun Mar 13 06:58:12 PDT 2011


Shane KD6VXI Youhouse wrote:

> It seems to me that the losses in a tuner typically will be effected by
> the transformation ratio.

> There is loss in any network that transforms impedance that I've been able
> to find.

   I think there are losses to everything.  (but only in the resistances not in the reactance)

> Circulating current in the tuna WILL cause heating, just as it does in a
> pi net in your amplifier.  The pi, L, etc. doesn't care what the generator
> is (Cblock or literally, Cload).

> Correct me if I'm wrong...  BUT, my tuna (Johnson Matchbox, 6 inch spaced
> #10 feeders to 160 inv v) gets warmer the larger transformation ratio is
> being effected.

   I am sure the losses are proportional to the current in the resistance.
-- 
    Ron  KA4INM - Endless Loop: n.        see Loop, Endless.
                  Loop, Endless: n.       see Endless Loop.
                  -- Random Shack Data Processing Dictionary


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