My Ranger driven 813 modulator is working very well but now I want to
move on to a self-contained mod.

I have ordered a 15 W solid state amp but need some help picking a
transformer for between it's 4 ohm output and the 813's running as triodes.

I am sure this has been done many times so perhaps someone can save me
the pain of trying to determine the impedance needed for the output of
the trans.

Thanks,

JACK K9ACT

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