[Boatanchors] FBX alignment answer
JAMES HANLON
knjhanlon at msn.com
Mon Jun 30 15:20:05 EDT 2025
Well I figured out the answer to my question about aligning the crystal filter in my FBX. The condenser near the rear of the receiver (has B+ on it and) is the one to peak for transformer resonance. The condenser near the front has no B+ on it and is the filter's Phasing adjustment. Also worth noting, in the first and second IF transformers the condensers near the front of the receiver have B+ on them, the ones near the rear do not have B+ on them.
Now I just need to try that alignment condenser for the general coverage detector coils.
Thanks to Jon Weiner KI1VCC an Al Klase for your helpful replies to my questions.
Jim, W8KGI
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