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ROX-2T ARDF RECEIVER (PCB 12:09)

(All the photos will open individually at a higher resolution )

Location of the SMT varicap on the under side of the board. The cathod end is banded. Illumination with a LED light/torch, will render the banding very  clearly.
Rox-2T version 3 Full Plan View
This is a high resolution plan view of the  assembled PCB.
RT1 can be a 100K trimmer, or a 9mm pot, as shown.
However, please note
  • If a pot is used, the PCB cannot be assembled or removed with the pot  in place.
  • The pot should used as secondary to the gain control as it reduces the audio dynamic range.













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