Owen Duffy wrote:

...
(BTW, about half the power is dissipated in a 1000+j1000 isolator.) 2000
+j2000 is becoming reasonably effective.
...

I have a 4:1 hybrid balun (4:1 voltage balun coupled up with a 1:1
current balun). Now and then I run the full california-kilowatt to it,
I have NEVER seen the thing REAL WARM unless running into a high
standing wave, but NEVER what I would call REAL HOT.

500+ watts would shortly make it so hot it would burn fingers and smoke
even the high temp thermaleze enamel off the windings (if the balun was
forced to dissipate that power!)

I don't see where half the power could have ever been "sunk" into the
balun, no matter what freq it has been operated at, 2-30. The windings
all look in excellent shape and the core in good condition ...

Or, perhaps I misunderstood your previous post.

JS