[R-390] Matching info wanted

[Barry]

My signal generator's output impedence is 10ohms.  A few years ago, I seem
to recall a discussion we had about matching "networks" made up a couple
resistors.  Knowing the input impedence for the balanced connector is
supposed to be 125 ohms, I'm running with a mismatch.  Placing a 115 ohm
resistor in series with the generator lets the radio "see" 125 ohms, but
then the generator is seeing 240 ohms.  One can place a parallel resistance
across the generator so that it "sees" closer to 10 ohms, but then that
throws the 125 ohm impedence off.

Is there a way to construct a matching network of sorts using a resistor
network?  Obviously with the generator attached to the 125-ohm input,
there's no way to get the geneerator to see 10 ohms exactly, but I'm
thinking there is a network that might provide a fairly decent match.

Would a matching transformer be a better choice?  Can one wind a decent
homebrew matching transformer?

Anyone?

Thanks,

Barry - N4BUQ