[R-390] Stagger-tuned IF question

[Barry]

Guys,

In the alignment instructions in my R390A manual, it states that some I/Fs
should be stagger tuned while others should be straight through at 455kc,
but it doesn't explain what determines this.  Is there a component
difference that makes this distinction or is it simply the application for
which the receiver is to be used?

I'm thinking a CW-only receiver might benefit from being tuned at 455kc
while a receiver that was going to do a lot of voice work might sound better
stagger tuned.

What's the skinny on this?

Thanks,

Barry - N4BUQ