"Antonio Vernucci" wrote in message
...
I would assume that maximum selectivity occurs when the 85 kHz IF
trasformers actuators are fully pulled up (maximum distance between primary
and secondary windings).

Can any one please confirm or deny?

73

Tony I0JX

Yes, rod pulled out for maximim selectivity (highest "Q")............ the
reciever's front end needs a pretty stable local oscillator to keep a signal
inside the new, 85kc IF bandpass.
Old Chief Lynn, W7LTQ