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RE: Resistor on the interstage transformer

Incorrect Sir
Interstages are designed to function
with a certain band of Rp tubes.
Outside of that band and you get
poor frequency response (Rp too high)
OR
high frequency ringing (Rp too low).
Like anything else, interstages are
a balancing act with many parameters.
It is these parameters that define
the interstage's rated load -
not the secondary load.
That can also be said of an OPT too.
Change the secondary load and
therefore change the primary load BUT
any transformer will tell you that
you will have a poorer performance
when you do that.
This is because of the many parameters
that are juggled to get best performance.

DanL


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