Sansui TU-517, Weak 75-ohm Input

rmp

Active Member
Using the 75-ohm antenna input results in weaker signal strength than using the 300-ohm input. It's surprising, since the signal has to go through an external balun to get to the 300-ohm input. Has anyone else noticed this behavior?
 
Probably first gang of the front end is aligned for better reception with a 300 ohm input. Aligning with the 75 ohm connected would give better sensitivity at 75 ohm and 300 would be less.
 
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