[R-390] Staggertuning IF transformers
n4buq at knology.net
n4buq at knology.net
Thu Sep 28 11:49:57 EDT 2006
Still curious about the IF transformers in my current project. As I've
mentioned, I can't seem to staggertune this deck although from all
indications, it should be possible (dimpled filter cover with trimmers on
both sides indicating a newer deck that should be capable of staggertuning).
I see where there are resistors across the primaries of the IF
transformers. I assume these are there to lower the Q of the circuit and
thereby increasing its bandwidth. Is it possible the non-staggertunable
decks have transformers without these resistors (or perhaps some resistance
values provide for a broader bandwidth)?
Just curious.
Barry - N4BUQ
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